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About condensation, shower domes, shower dome installers and Nuaire Drimaster - a cool solution for NZ moisture conditions.

sation nden Co TRIPLE CH3CK HOME INSPECTIONS INTERN ACH I CE RTIFIE D Inspected once Inspected right
sation nden Co  TRIPLE CH3CK HOME INSPECTIONS INTERN ACH I CE RTIFIE D  Inspected once Inspected right
How to control condensation in your home What is condensation When warm moist air produced by ordinary household activities such as cooking and bathing hits a cold surface e g a cold wall or a window condensation occurs Unless the moist air can escape to the outside through an open window air vent or extractor fan it will always stay in your home moving around until it finds a cold spot where it can condense Condensation can lead to mould growth which can contribute to problems of asthma and other respiratory diseases A recent study in Glasgow has proved that Asthma attacks are directly triggered by allergens in the dust mite s faeces Most homes have dust mites Dust mites thrive in conditions where the relative humidity of the air is high so they flourish in the winter months If a member of your household suffers from asthma it is very important to keep the home warm and well ventilated and to steam clean mattresses bedding and carpets before the onset of winter to control the dust mite population Insulation G G Condensation occurs on cold spots so if you can warm up the cold spots you will help to control condensation Insulating your loft external walls and draught proofing doors and windows will reduce the cold spots and make your G house more comfortable cheaper to heat Find out if you are eligible for a grant for insulation from our leaflet Energy Efficiency Grants and Offers for Households Heating G Try and avoid cold areas in the home It is better to heat the whole home to a lower temperature rather than one room to a very high temperature When you get condensation and mould forming it is often not in the room where you are making the moisture e g the kitchen but in a room you don t often use like the spare bedroom This may be because this room is not usually heated Try heating all the rooms regularly G Make sure you are using the heating system and controls efficiently as this will save you money and enable you to afford to heat more of your home Reducing moisture Reducing moisture in the home will cut down the amount of condensation How much moisture do you make in your home Drying clothes produces 10 pints 6lbs of spun washing in an unvented tumble dryer Washing clothes produces 1 pint
How to control condensation in your home What is condensation  When warm moist air produced by ordinary household activiti...
G G If you use a tumble dryer make sure it is vented to the outside Don t dry clothes indoors if possible If you have to open the window and shut the door of the room where the clothes are drying as this will let the moisture from the wet clothes go outside rather than circulate around your home Using a paraffin or bottled gas heater for 5 hours produces 3 pints of moisture G Avoid using portable gas and paraffin heaters These fuels give off a lot of moisture when they burn so open a window in the room where the heater is if you have to use one Using LPG heaters is prohibited in LBTH homes for health safety reasons G They are expensive to run they cost about 7 9p per hour to use compared to a mains gas fire which costs 2 3p per hour Ventilation Ventilating your home adequately by opening windows a little using extractor fans or vents provided will allow moisture to escape to the outside Having a bath produces 2 pints of moisture G Use an extractor fan in the bathroom if you have one when you have a bath or shower to let the moisture out G Keep the bathroom door G G G shut when in use to stop moisture moving around your home Try putting cold water in the bath before adding hot no steam is created this way If you have a combination boiler experiment with the water thermostat at the boiler to get it to a useable temperature without the need to add cold water Leave the windows slightly open for half an hour after bathing to get rid of the moisture Remember to shut them afterwards Cooking by gas for 3 hours produces 3 pints of moisture G Use the extractor fan or open the window in the kitchen when cooking to let the moisture out G Cover boiling pans with pan lids this will save on your fuel bills as well as reducing moisture G Close the kitchen door when cooking as this stops the moisture moving around your home G If you have trickle vents above the windows keep them open and don t block up any air vents G If you can fit a Mechanical Ventilation with Heat Recovery MVHR fan it will be easier to ventilate properly without causing heat loss Speak to your Energy Advisor if you want more information about MVHR
G G  If you use a tumble dryer make sure it is vented to the outside. Don   t dry clothes indoors if possible. If you have...
Service Maintenance Condensation About Condensation Tips for Controlling Humidity and Condensation Frequently Asked Questions Sources 2008 Pella Corporation 1 www pella com
Service   Maintenance  Condensation      About Condensation     Tips for Controlling Humidity and Condensation     Frequen...
condensation What is it Introduction Moisture on windows and doors is commonly referred to as condensation While it can be concerning or frustrating the good news is you can minimize or prevent condensation by controlling the humidity inside your home We re glad to help by providing you with information and resources Roomside Condensation Condensation on the interior of windows and doors is not caused by the window or door product Condensation is the result of high humidity levels in your home Air with high humidity holds water vapor until it comes into contact with a surface temperature less than or equal to the dew point the temperature at which air becomes saturated and produces dew Because glass surfaces are usually the coldest part of the home condensation appears on windows first generally in the form of water droplets or frost on the roomside of your window As interior air becomes drier or as the glass surface becomes warmer condensation begins to dissipate Replacing drafty windows and doors or installing a new roof or siding reduces air infiltration into your home making it tighter Because a tighter home retains more humidity condensation on colder surfaces in the home may occur more frequently than before the changes in the construction Conditions which cause Condensation Inside Temperature 70 F Humidity 40 Dew Point 44 F Conditions which prevent Condensation Outside Inside Air Temperature 0 F Temperature 70 F Humidity 30 Dew Point 37 F Glass Temperature 43 F Outside Air Temperature 0 F Glass Temperature 43 F Humidity is at recommended amount Lower humidity also lowers dew point No Condensation on interior glass because glass temperature is above dew point Humidity is higher than recommended amount High humidity causes dew point to be higher Condensation appears on interior glass because glass temperature is below dew point Maximum Recommended Humidity Levels Outside Temperature Inside Humidity 20 F to 40 F Not over 40 10 F to 20 F Not over 35 0 F to 10 F Not over 30 10 F to 0 F Not over 25 20 F to 10 F Not over 20 20 F or below Not over 15 Based on engineering studies at 70 F conducted at the University of Minnesota Laboratories 2008 Pella Corporation 2 www pella com
condensation  What is it   Introduction Moisture on windows and doors is commonly referred to as condensation. While it ca...
condensation What is it Exterior Condensation Exterior condensation generally occurs in the summer months It is caused by three main conditions high outdoor humidity little or no wind and a clear night sky It forms in the same way as roomside condensation when the temperature of the glass is cooled below the dew point of the outside air as opposed to inside air in roomside condensation To combat exterior condensation open window coverings at night to warm up exterior glass and remove or trim shrubbery near windows or doors to promote air circulation Increasing the air conditioner setting by a couple degrees warmer might also help Triple pane Low E Insulated Glass with Argon Outside Air Temperature 50 F Dew Point 48 F Double pane Clear Insulated Glass Inside Outside Air Temperature 70 F Air Temperature 50 F Dew Point 48 F Glass Temperature 47 F Inside Air Temperature 70 F Glass Temperature 55 F Heat loss to the night air and sky cools outside glass Energy efficient window keeps heat inside the home so exterior glass stays cool Condensation appears because exterior glass temperature is below dew point Heat loss to the night air and sky cools outside glass Non energy efficient window allows heat from inside the home to warm up exterior glass Condensation does not appear because exterior glass temperature is above dew point Between the Glass Condensation Condensation between two pieces of Insulated Glass is not controllable and is an indication of glass seal failure Contact your nearest Pella Service Center for this situation Effects of Condensation High interior humidity can lead to structural damage to your home and health hazards Because these effects frequently occur unseen in the wall cavities attics and crawl spaces the visible sign of condensation on glass is a good clue humidity levels are too high Problems like window condensation and musty odors are nuisances while others can be more serious such as water stains on walls and ceilings or structural damage The important thing to remember is that your windows are trying to tell you to reduce indoor humidity before it causes hidden costly problems elsewhere in your home 2008 Pella Corporation 3 www pella com
condensation  What is it   Exterior Condensation Exterior condensation generally occurs in the summer months. It is caused...
Condensation Prevention Condensation Prevention Quick Tips for Controlling Humidity and Condensation in Your Home Sources of Humidity Cooking and dishwashing Action Required Vent stove range hoods to the outside cover cooking pots to reduce steam Showers and baths Vent bathroom exhaust fans to the outside and use fans for at least 15 minutes after taking a shower Ironing washing and drying laundry Properly vent appliances to the outside use clothes dryer instead of hanging wet clothes indoors use exhaust fans Inadequate ventilation of windows Open window coverings and make sure interior doors are left open during the day to allow air circulation remove inside screens Moisture producing areas Close doors and windows to greenhouse areas hot tub or pool cover large aquariums Moist air trapped in attic and crawl space Be sure soffit vents are clear of dirt and debris seal around indoor light fixtures to prevent warm air rising to the attic Use vapor barriers to prevent moisture in the soil from rising into the home Furnace Make sure furnace is working properly and serviced regulary Look into dryer heat sources such as gas or electric furnaces Stale damp air Groundwater seeping through foundation Excessive humidifier use Indoor plants Damp basement Firewood New wood plaster cement and other building materials 2008 Pella Corporation Install an Air to Air exchanger to vent moist air outside and make sure its openings are not blocked Don t cover or deflect warm air registers don t close off rooms open windows slightly to let in cool dry air Install gutters flashing and downspouts and channel water away from home s foundation Monitor humidity levels with hygrometers to keep moisture in air at optimum levels turn humidifier off or down Circulate air with small fans Run a dehumidifier in the basement to reduce excess moisture Store firewood outside Building materials contain a lot of moisture The first heating season causes this moisture to flow into the air and settle on cool surfaces This type of condensation may last a few heating seasons 4 www pella com
Condensation  Prevention  Condensation Prevention Quick Tips for Controlling Humidity and Condensation in Your Home  Sourc...
condensation FAQ Frequently Asked Questions What is condensation Condensation is the process of changing a gas into a liquid As air becomes saturated with too much humidity it cannot hold the water vapor Moisture is in the air all around us When warm moist air contacts a cooler surface such as window glass it cannot hold as much water vapor so it condenses onto the cool surface Do windows or doors cause roomside condensation Windows and doors do not cause condensation Typically the first place condensation can be seen is on window and door glass Just like your bathroom mirror doesn t cause condensation after a hot shower and your car windows don t cause interior frost in the winter when several passengers are in the vehicle the cooler surface is where it collects Why does roomside condensation occur Condensation is water appearing on the roomside of windows and doors because conditions are just right for this to happen The roomside glass surface temperature is at or below the dew point for the amount of moisture humidity in the inside air When warmer air which can hold more moisture than cooler air contacts the cool surface of the glass the air condenses and squeezes the water out onto the cool surface What is dew point The temperature of air at which it can no longer hold all of its water vapor and some of the water must condense into liquid water What causes excess humidity in the home Everyday living Showers baths cooking washing dishes laundry dog water bowls and cleaning all add moisture to the air in your home as much as 4 gallons or more per day in some homes People even exhale moisture into the air as they breathe Home construction Today s energy efficient well insulated homes help hold down heating and cooling costs however the same building techniques that help block outdoor air from entering our homes also keep moisture from venting to the outdoors Is roomside condensation more likely to occur in certain climates or times of year In areas where January temperatures average 35 F or less condensation is more likely to occur In the summer and fall months homes pick up moisture from damp air As the heating season begins and windows are closed the indoor air will have more moisture so temporary condensation for the first few weeks is possible Are there other cases where window condensation is only temporary Building materials used in new construction or remodeling such as wood cement dry wall plaster and paint contain moisture which is gradually released into the air of the home This excess moisture can cause condensation but will usually disappear after the first few heating seasons Homes also absorb moisture during humid summers This moisture condenses during the first few weeks of heating until the house dries out Additionally anytime there are quick and sudden drops in temperature during the heating season condensation may temporarily appear Why do I have condensation with my new windows when my old windows did not Windows do not cause condensation however they are an indicator of high humidity levels The older less efficient windows allowed air to move across the glass by letting air inside or allowing inside air to escape outdoors preventing the air temperature of the glass from reaching dew point Why do I have condensation on my windows and my neighbor does not Indoor temperature ventilation air exchange window coverings and floor plans as well as everyday life can vary from home to home It is not unusual for a family of four to contribute 15 to 20 pounds of moisture per day to their indoor environment depending on their habits The typical family of four can produce 12 pounds of moisture per day just breathing Washing dishes for three meals a day can produce one pound of moisture One shower can add pound and there are many other activities or situations where moisture is added to the indoor air In the same room why does one window have Roomside condensation and others do not There are many factors attributing to this phenomenon including any number of the following Air circulation within the room or home varying room temperatures air register location type of window Bay or Bow may be colder window size glass type Low E versus clear window coverings window screens water source closer to one window than another ie plants the direction the windows are facing elevation of the windows wind direction direction of the sun or partial blocking of the sun due to trees buildings etc Continued on next page 2008 Pella Corporation 5 www pella com
condensation  FAQ  Frequently Asked Questions What is condensation  Condensation is the process of changing a gas into a l...
condensation FAQ Frequently Asked Questions Do window coverings or drapes cause roomside condensation on windows or doors Drapes and other window coverings do not cause condensation however they can contribute to the problem by restricting the flow of air over the glass surface Therefore condensation is more likely to occur when drapes are closed and shades are pulled down How does air circulation impact roomside condensation Air circulation affects the supply of fresh air to all areas of your home Poor air circulation within your home will keep the air next to your windows cooler When air movement is restricted next to a cool surface the air will cool down sooner than well circulated air As room air temperature decreases its ability to hold the water vapor decreases Using the same principle as a defroster in an automobile supplying fresh air to the glass area slows down the cooling process and reduces condensation Does the amount of roomside condensation depend on window type Sometimes Bay and Bow windows may experience more condensation than other window styles because they are typically installed away from the insulated house wall where inside air circulation is usually more restricted Bays and Bows could be a few degrees cooler in temperature than other windows in the same room Insulating between the window head and seat board is recommended to help reduce condensation In extremely cold climates additional insulation above the head board and below the seat board may also be necessary Additionally glass above the checkrail on a single or double hung window may be a few degrees cooler than the bottom sash because of restricted circulation of interior air Why does a strip of condensation sometimes form all the way around the roomside of the window The center of the glass stays warmer than the glass close to the edge The strip of condensation is NOT an indication the window is leaking air or not functioning correctly How can humidity cause problems Excess humidity can create problems some are just nuisances like condensation on windows musty smells others can be more serious such as blistering or peeling paint damage to insulation stains on walls and ceiling or structural damage to the home Will roomside condensation ruin my windows If condensation issues are not addressed window problems may appear over time Why do I still have roomside condensation even though I am running a dehumidifier The humidity is most likely still too high There are a variety of reasons condensation may still be appearing including but not limited to varying air temperature in the home air circulation window coverings and other sources of water placing more moisture in the air than the humidifier is removing What can I do to control roomside condensation Reduce humidity See table on page 4 for specific examples Do windows or doors cause exterior condensation No windows and doors do not cause condensation Exterior condensation is dew the same condensation you see on car windows lawns and streets on many mornings Dew on windows is a natural atmospheric phenomenon and it doesn t mean your windows are leaking air or malfunctioning in any way Actually exterior condensation is a sign of energy efficiency indicating the outside pane is thoroughly insulated from the heat indoors Why does exterior condensation occur Exterior condensation happens when the exterior surface temperature of the glass falls below the dew point of the air This type of condensation is more likely to occur when outside humidity levels are higher It typically occurs in the spring and fall when cool nights follow warm days How can I control exterior condensation Open the drapes or shades at night increase the interior temperature a few degrees at night or shield the windows or doors from direct line of sight to the sky using trees awnings etc What does condensation between the glass mean Condensation between the two sealed panes of insulating glass is an indication of seal failure and the insulating glass will need to be replaced Condensation behind the Hinged Glass Panel on a Designer Series window is usually an indication of excess humidity in the home follow the steps listed above 2008 Pella Corporation 6 www pella com
condensation  FAQ  Frequently Asked Questions Do window coverings or drapes cause roomside condensation on windows or door...
condensation Sources Sources http www wdma com http www extension umn edu http www uwex edu http www efficientwindows org 2008 Pella Corporation 7 www pella com
condensation  Sources  Sources http   www.wdma.com http   www.extension.umn.edu http   www.uwex.edu http   www.efficientwi...
Assessment of the performance of the Showerdome device A technical report prepared for Showerdome Ltd November 2011 Luke van Dijk James K Carson School of Engineering University of Waikato j carson waikato ac nz
          Assessment  of  the  performance  of  the   Showerdome     device           A  technical  report  prepared  for ...
Contents Summary 1 3 2 The Showerdome 4 3 Theory 5 4 Experimental method 6 5 Results 7 6 Potential energy and financial savings 12 7 Conclusions 16 References 17 1 Introduction Appendix A Humidity Data logger Specifications and Calibration 18 Appendix B Example calculations 20
        Contents      Summary                                        1                                    3    2  The  Sho...
Summary Showerdome Ltd Tauranga New Zealand manufacture a device the Showerdome that traps moisture within a shower cubicle restricting its release into the bathroom which in turn greatly reduces the amount and likelihood of condensation and its associated negative effects outside the shower cubicle Showerdome Ltd approached the University of Waikato seeking an independent quantitative assessment of the performance of their device to support their existing appraisals which have mainly been qualitative and anecdotal Testing on the effectiveness of the Showerdome was carried out in a domestic bathroom in Tauranga New Zealand during December 2010 and January 2011 Summer and also during August and September of 2011 Winter The experiments showed that with a Showerdome installed the relative humidity within the bathroom was largely unchanged during a 5 15 minute shower These results have significant implications for a typical household The amount of moisture that would escape during a 15 minute shower in a cubicle that does not have a device such as the Showerdome is of the order of half a standard cup 125 ml While some of this water might exit the home via ventilation any which does not escape will either condense on surfaces inside the home or remain in the air increased humidity Condensation serves to accelerate the growth of harmful moulds and bacteria and contributes to structural damage In addition the more humid the air is the more energy is required to heat it While the Showerdome is not a dehumidifier i e it does not remove moisture from the air so it will not reduce background humidity it does prevent the shower from increasing the humidity of the air and forming condensation Assuming that the Showerdome is installed and used correctly there is the potential for significant energy savings to be made in the region of hundreds of dollars per year depending on a number of factors mainly from reduced usage of electric heaters to dry the bathroom after a shower or to pre heat the bathroom if the window has been left open to dry it The Showerdome would render extractor 1 20
Summary      Showerdome  Ltd   Tauranga,  New  Zealand   manufacture  a  device   the  Showerdome       that  traps  moist...
fans and mirror de misters largely redundant which would result in a small energy savings in each case but would also result in reduced capital costs since their installation particularly in the case of the de mister would be unnecessary There would also be energy savings if the occupants of a dwelling stopped using heated towel rails as a result of installing a Showerdome Indirect savings related to reduced maintenance and health care costs may also result from the installation of a Showerdome In drawing these conclusions it must be stressed that while a properly installed Showerdome will definitely prevent moisture from leaving the shower and causing condensation and fogging in the bathroom it will not necessarily result in energy savings unless the occupants change their behaviour If they continue to use heaters towel rails extractor fans etc as they did before the installation of the Showerdome then clearly there will be no energy savings 2 20
fans  and  mirror  de   misters  largely  redundant,  which  would  result  in  a  small  energy   savings   in   each   c...
1 Introduction Cold damp homes a particular problem for New Zealand have a detrimental effect on residents health due to moulds mildews mites and harmful microbes that thrive under such conditions 1 2 Baths and showers inevitably produce warm moist air which in a cold poorly ventilated house is likely to condense on the surfaces of walls ceilings and household chattels In addition excessive amounts of condensation can lead to structural damage as paint peels exposing the wood or wood products that the building is constructed from which may then either rot or swell and soften Showerdome Ltd Tauranga New Zealand manufacture a device the Showerdome that traps moisture within a shower cubicle restricting its release into the bathroom which in turn greatly reduces the amount and likelihood of condensation and its associated negative effects outside the shower cubicle Showerdome Ltd approached the University of Waikato seeking an independent quantitative assessment of the performance of their device to support their existing appraisals which have mainly been qualitative and anecdotal Since the Showerdome is a relatively new device no standard testing procedures could be found Instead a series of experiments were performed as described in Section 4 comparing the moisture loss from a shower with and without the Showerdome in order to assess its effectiveness at trapping moisture Theoretical calculations of energy savings were also performed The majority of the work was performed by Mr Luke van Dijk who had recently completed the academic components of his Bachelor of Engineering with Honours Degree at the University of Waikato and was completing the final workplace experience requirement Luke was supervised by Dr James Carson a Senior Lecturer within the School of Engineering at the University of Waikato 3 20
1  Introduction      Cold  damp  homes,  a  particular  problem  for  New  Zealand,  have  a  detrimental  effect   on  re...
2 The Showerdome The Showerdome works by isolating the warm moist air within the shower cubicle since if it does not escape the shower no condensation will form on surfaces within the bathroom Also as the air within the shower is heated no fogging occurs within the cubicle either Figure 1 Showerdome Ltd s marketing graphic showing how the device works Showerdome Ltd claim many benefits result from the installation and use of the device These fall into two general categories 1 Reduced moisture in the bathroom and household 2 Reduced energy use domestically 4 20
   2    The  Showerdome         The  Showerdome     works  by  isolating  the  warm,  moist  air  within  the  shower  cub...
Within these broad benefits fall many specific claims which are communicated for marketing purposes Reduced mould and mildew Reduced maintenance No condensation upon mirrors Dryer environment for towels etc No need to extractor fans heated towel rails or bathroom heat lamps Reduced water temperature used at shower head No need to keep bathroom window s open Showerdome Ltd bases these claims upon anecdotal evidence from directors and installers as well as feedback from customers 3 Theory 3 1 Humidity At a particular temperature air can hold a certain amount of water known as its humidity There are three commonly used measures of humidity the absolute humidity is the mass of moisture within the air relative to 1 kg of dry air the relative humidity as the name suggests measures how close to saturation the air is misting fogging or condensation occurs once the relative humidity increases past 100 while the dewpoint is the temperature at which air with a certain absolute humidity will be saturated 3 These three measurements are related to each other and are often shown on a psychrometric chart which may be found in a number of reference books and on the internet 4 When a shower sprays hot water through unsaturated air some of the water evaporates and becomes vapour and the air temperature and humidity increase the relative humidity will typically rise to 100 i e the air will be saturated with water The warm water saturated air rises and in the absence of a moisture barrier will escape from the shower cubicle to mix with the surrounding air in the room thereby increasing the room s humidity If the dew point of the air in the room rises above 5 20
Within  these  broad  benefits  fall  many  specific  claims,  which  are  communicated  for   marketing  purposes        ...
the surface temperature of the walls ceiling windows mirror etc any air in contact with these surfaces will be cooled below its dew point temperature with the result that saturated air will release the moisture it cannot hold which condenses on the surfaces Therefore to prevent condensation the dew point of the air in the bathroom must be maintained below the temperature of the air any surface within the room This may be achieved either by heating the room or by restricting the amount of moisture being released into it or a combination of both To test the effectiveness of the Showerdome as a moisture trap it is sufficient to compare the relative humidity or dew point of the air in a bathroom during a shower with and without a Showerdome installed 3 2 Energy consumption in a bathroom Energy usage within bathrooms is highly dependent on both bathroom design and the preferences of the bathroom users so it is difficult to perform experiments that will produce results from which meaningful general conclusions may be drawn It is more practical and potentially more valuable to consider a range of hypothetical usage scenarios and how they would be affected by the installation of a Showerdome 4 Experimental method Testing on the effectiveness of the Showerdome was carried out in a domestic bathroom in Tauranga New Zealand during December 2010 and January 2011 Summer Trials and then August and July 2011 Winter Trials A Showerdome was professionally installed into a corner shower cubicle new seals were placed around the doors as part of the installation procedure The bathroom dimensions were 2 6 m x 1 75 m x 2 35 m and it had one window and one door There was no extraction fan and the bathroom window and door were closed during the trials 6 20
the  surface  temperature  of  the  walls,  ceiling,  windows,  mirror  etc.,  any  air  in  contact   with  these  surfac...
A trial consisted of recording the air temperature and humidity in the bathroom for not less than 3 minutes before the shower was turned on in order to obtain base line temperature and humidity readings followed by running the shower for not less than 5 minutes and not more than 20 minutes at a flow rate of between 9 and 10 5 L min 1 as per EECA recommendations 5 with the water temperature ranging between 37 and 40 C The air temperature and humidity where measured by a Jaycar Humidity Logger Jaycar Cat QP6013 6 and recorded every 2 seconds The humidity sensor was calibrated during the investigation Appendix A Summer Trials were performed 5 times with the Showerdome installed and 5 times without it The Winter trials involved 3 trials with and 3 trials without the Showerdome 5 Results 5 1 Summer Trials Figure 2 shows a plot of the relative humidity in the bathroom with and without a Showerdome on a day the 27th of January 2011 100 90 Relative Humidity 80 70 60 50 40 30 With Showerdome 20 Without Showerdome 10 0 0 5 10 15 20 Time min Figure 2 Comparison of relative humidity within a domestic bathroom with and without a Showerdome fitted to a shower 27th January 2011 7 20
A  trial  consisted  of  recording  the  air  temperature  and  humidity  in  the  bathroom  for   not  less  than  3  min...
These results are typical of the Summer Trials performed and show that with the Showerdome in place there was no noticeable change in relative humidity Without the Showerdome the relative humidity increased from approximately 60 65 to between 90 and 100 Figure 3 shows plots of the air temperature and dew point in the room corresponding to the relative humidity data shown in Figure 2 30 Temperature C 25 20 15 Air temp with Showerdome 10 Dew point with Showerdome Air temp without Showerdome 5 Dew point without Showerdome 0 0 5 10 15 20 Time min Figure 3 Comparison of air temperatures and dew points within a domestic bathroom with and without a Showerdome fitted to a shower 27th January 2011 Note that although the air temperature had increased from approximately 24 C to approximately 27 C by the time the trial without the Showerdome was performed the results may still be compared since we are interested with the dew point temperature relative to the air temperature As for the relative humidity measurements there was very little change to the air temperature or dewpoint when the Showerdome was in place whereas without the Showerdome the 8 20
   These   results   are   typical   of   the   Summer   Trials   performed   and   show   that   with   the   Showerdome ...
dewpoint rose in the same manner as the relative humidity and approached the air temperature Recall Section 3 that if the dew point temperature increases above the air temperature a mist will form in the air Since the temperatures of the surfaces within the bathroom e g walls ceilings mirrors etc will often be lower than the air temperature condensation may form as was observed in these experiments even while the dewpoint is below the air temperature 5 2 Winter Trials Since the problem of condensation is more significant during Winter months and the initial trials were performed during Summer Further trials were performed in August and early September Figure 4 shows the relative humidity with and without the Showerdome for trials performed on August 7th 2011 when the air temperature dry bulb was approximately 11 C 100 90 Relative humidity 80 70 60 50 40 30 20 With Showerdome 10 Without Showerdome 0 0 2 4 6 8 10 12 Time min Figure 4 Comparison of relative humidity within a domestic bathroom with and without a Showerdome fitted to the shower 7th August 2011 9 20
dewpoint  rose  in  the  same  manner  as  the  relative  humidity,  and  approached  the  air   temperature.   Recall    ...
The relative humidity plots in Figure 4 are similar to those in Figure 2 in that without the Showerdome the relative humidity within the bathroom rose from between 60 and 70 to above 90 while the relative humidity with the Showerdome fitted is lower It is worth commenting on the relative humidity data with the Showerdome installed Figure 4 since it is not as flat as the Summer Trial data and contains to features bumps in the curve that should be explained The bump that occurs at the start of the trial up to shortly before the 2 minute mark most likely corresponds to a pulse of warmer air coming in with its associated moisture with the opening of the bathroom door as Luke van Dijk entered to start the run This bump in the relative humidity at the start of the run is also seen to a lesser extent in the data without the Showerdome Figure 4 and was also observed in other trials along with corresponding bumps in the air temperature data This initial bump was not observed during the Summer Trials most likely because the temperature difference between the bathroom and the rest of the house was not nearly as significant and hence the opening of the bathroom door would not have resulted in the infiltration of a significant quantity of air at different temperature or relative humidity After the 2 minute mark the relative humidity in the bathroom when the Showerdome was installed fell to a base line of approximately 65 before rising slowly to about 70 once the shower was turned on at about the 4 minute mark Figure 4 This gradual rise in relative humidity during the shower was also observed in the other two Winter Trials with the Showerdome fitted Unlike the Summer Trials where the relative humidity in the bathroom was largely unaffected with the Showerdome in place Figure 4 shows a small rise in relative humidity as the shower progresses however it was not significant in terms of producing condensation in fact no condensation was observed during the Winter Trials with the Showerdome in place until the shower door was opened at the end of the run whereas extensive condensation was observed during the trials that took place without a Showerdome installed 10 20
The  relative  humidity  plots  in  Figure  4  are  similar  to  those  in  Figure  2  in  that  without   the  Showerdome...
Another bump in the relative humidity data with the Showerdome installed may be observed at the 10 minute mark Figure 4 This most likely corresponds to the shower cubicle door being opened so that the shower could be turned off Some of the saturated air within the cubicle would have escaped and produced the noticeable increase in the relative humidity within the bathroom The fact that this bump was not observed during the Summer trials may be attributed to the fact that air can hold a lot more water at 25 C approximately 20 g water per kg of dry air than it can at 11 C approximately 8 5 kg water per kg dry air as may be observed on a humidity chart 4 Hence a given mass of water released into the air at 25 C will not affect the relative humidity nearly as significantly as it will at 11 C Overall the data from the Winter Trials were subject to greater measurement uncertainty due to these temperature sensitivities however they nevertheless clearly indicate that the Showerdome is an effective moisture trap in Winter as well as in Summer The results shown in Figures 2 to 4 have significant implications for a typical household The amount of moisture that would escape during a 15 minute shower in a cubicle that does not have a device such as the Showerdome is of the order of half a standard cup 125 ml dependent on the dimensions of the room the duration of the shower and the increase in relative humidity While some of this water might exit the home via ventilation any which does not escape will either condense on surfaces inside the home or remain in the air increased humidity Condensation serves to accelerate the growth of harmful moulds and bacteria and contributes to structural damage The more humid the air is the more energy is required to heat it While the Showerdome is not a dehumidifier i e it does not remove moisture from the air so it will not reduce background humidity it does prevent the shower from increasing the humidity of the air and forming condensation 11 20
Another     bump     in  the  relative  humidity  data  with  the  Showerdome     installed  may   be   observed   at   th...
6 Potential energy and financial savings As mentioned in Section 3 due to the wide range of possible energy usage scenarios in New Zealand bathrooms it is more valuable to perform estimates over a range of variables and conditions than to perform a detailed energy balance around an individual bathroom 6 1 Reduced heater usage Firstly consider potential cost savings associated with reduced electric heater usage During Autumn Winter and Spring household residents may dry their bathroom either by leaving a window open or by keeping an electric heater running for a time after the shower has been exited or both Consider a dwelling occupied by four adults e g a typical student flat who each take daily showers If there is a drying period of 15 minutes after each shower or in the case where a window has been left open a 15 minute pre heat time to warm the air in the bathroom that amounts to an hour of heating each day during the colder months which potentially is unnecessary With a Showerdome installed there would be no need for this drying or pre heating time Customer feedback received by Showerdome Ltd 7 has indicated that some people report that they don t use their heater at all with a Showerdome installed since the warmth of the moisture vapour is retained within the shower cubicle Taking the student flat example again if each occupant of the dwelling takes a 15 minute shower and either a 15 minute drying or bathroom pre heating time potentially two hours of heater usage a day could be saved if a Showerdome was installed While not entirely implausible this example of the student flat risks over stating the energy savings Table 1 shows a range of scenarios where energy savings are related to reduced electric heater usage for any reason and the power consumption of the heater see Appendix B for example calculations 12 20
   6.    Potential  energy  and  financial  savings      As  mentioned  in  Section  3,  due  to  the  wide  range  of  po...
Reduced annual energy consumption kWh Heater power consumption kW Reduced heating time h 0 5 1 1 2 2 0 25 46 91 110 183 0 5 91 183 219 365 0 75 137 274 329 548 1 183 365 438 731 1 25 228 457 548 913 1 5 274 548 657 1096 1 75 320 639 767 1278 2 365 731 877 1461 2 4 219 438 657 877 1096 1315 1534 1753 Table 1 Potential energy savings from reduced electric heater usage due to the installation of a Showerdome A corresponding array of potential dollar savings is shown in Table 2 where power is priced at 0 237 kWh Reduced annual energy cost assuming electricity costs 0 237 kWh Reduced heating time Heater power consumption kW h 0 5 1 1 2 2 2 4 0 25 11 22 26 43 52 0 5 22 43 52 87 104 0 75 32 65 78 130 156 1 43 87 104 173 208 1 25 54 108 130 216 260 1 5 65 130 156 260 312 1 75 76 151 182 303 364 2 87 173 208 346 416 Table 2 Potential dollar savings from reduced electric heater usage due to the installation of a Showerdome It is not uncommon for bathroom heaters to have power consumptions of 2 kW or 2 4kW and in such cases Table 2 shows that a reduction of on average half an hour per day can result in savings in the region of 100 year the student flat scenario considered earlier would be in the region of 400 year It is reiterated that these figures are indicative estimates only and have not actually been measured in any way 13 20
Reduced  annual  energy  consumption   kWh  Heater  power  consumption   kW  Reduced  heating  time    h  0.5 1 1.2 2 0.25...
6 2 Reduced extractor fan and mirror de mister usage In addition to reduced power consumption from electric heaters the Showerdome has the potential to reduce energy consumption from other sources For example extractor fans may not be required and mirror de misters would largely be redundant However the power consumption of fans 20 50 W is small compared to the power consumption of heaters and even if the usage of a 50W fans was decreased by 2 hours per day over an entire year the energy savings would amount to less than 10 year Mirror de misters 200W m are probably more common in hotels than in homes but regardless of where it is used the energy consumption of the de mister while greater than that of an extractor fan will still amount to tens of dollars per year rather than hundreds of dollars However since the Showerdome makes the mirror de mister redundant the greatest savings dependent on the price difference between the de mister and the Showerdome might come from the removal of the need to install the de mister in the first place perhaps a serious consideration for a hotel 6 3 Heated Towel Rails While the necessity of the extractor fan or mirror de mister is greatly reduced or completely removed by the Showerdome heated towel rails would not be affected as definitely The Showerdome will keep the bathroom drier which in turn will allow towels to dry faster however if people appreciate the warmth of a towel as much as they appreciate the fact that it is dry it seems reasonable to assume they will probably still use one even with the installation of a Showerdome But if a dwelling does stop using heated towel rails as a result of installing a Showerdome indicative values of the savings can be seen from Table 3 depending on the power consumption and time of usage 14 20
6.2  Reduced,  extractor  fan,  and  mirror  de   mister  usage   In  addition  to  reduced  power  consumption  from  ele...
Reduced annual energy consumption kWh Reduced Towel Towel Rail Power Condumption kW Rail Usage h day 0 08 0 15 0 2 1 29 55 73 2 58 110 146 6 175 329 438 12 351 657 877 24 701 1315 1753 Reduced annual energy cost assuming electricity costs 0 237 kWh 1 7 13 17 2 14 26 35 6 42 78 104 12 83 156 208 24 166 312 416 Table 3 Potential energy and dollar savings if heated towel rails are no longer used as a result of the installation of a Showerdome It is clear from Table 3 that if a dwelling stops using a heated tower real as the result of installing a Showerdome to the savings will be comparable to those from reduced heater usage particularly if the towel rail is left on 24 hours day throughout the year 6 4 Indirect savings The estimated savings from reduced usage of electrical appliances is relatively straightforward to calculate however the indirect savings associated with drier bathrooms may potentially be greater The two main areas are firstly reduced maintenance costs such as painting and cleaning or even replacement of timber framing or other components and secondly reduced medical expenses from treating health problems caused by damp homes 1 Without performing a survey of homes with and without Showerdome devices installed it is difficult to put any numerical values on the potential savings but householders who have lived in their home for more than a year will probably be able to gauge the significance of the problem of dampness and hence the value to be gained from the Showerdome 15 20
Reduced  annual  energy  consumption   kWh  Reduced  Towel Towel  Rail  Power  Condumption   kW  Rail  Usage   h day  0.08...
7 Conclusion The experiments showed that with a Showerdome installed the relative humidity within the bathroom was largely unchanged during a 10 minute shower with the exception of the shower door being opened during Winter meaning that the device was effective at preventing warm moist air escaping from a shower cubicle which in turn meant that no condensation or fog formed in Summer and minimal fogging occured in Winter Since condensation serves to accelerate the growth of harmful moulds and bacteria and contributes to structural damage and since energy costs increase with increased air humidity the Showerdome would be a worthwhile investment because it prevents these things from happening as the result of using the shower Assuming that the Showerdome is installed and used correctly there is also the potential for significant energy savings to be made in the region of hundreds of dollars per year depending on a number of factors mainly from reduced usage of electric heaters to dry the bathroom after a shower or to pre heat the bathroom if the window has been left open to dry it The Showerdome would render extractor fans and mirror de misters largely redundant which would result in a small energy savings in each case but would also result in capital cost savings since their installation particularly in the case of the de mister would be unnecessary There would also be energy savings if the occupants of a dwelling stopped using heated towel rails as a result of installing a Showerdome In drawing these conclusions it must be stressed that while a properly installed Showerdome will definitely prevent moisture from leaving the shower and causing condensation and fogging in the bathroom it will not necessarily result in energy savings unless the occupants change their behaviour If they continue to use heaters towel rails extractor fans etc as they did before the installation of the Showerdome then clearly there will be no energy savings 16 20
   7  Conclusion      The  experiments  showed  that  with  a  Showerdome     installed  the  relative  humidity   within ...
References 1 Butler S Williams M Tukuitonga C Paterson J 2003 Journal of the New Zealand Medical Association 116 1177 http www nzma org nz journal 116 1177 494 2 http www consumerbuild org nz publish maintenance interior dampness php 3 Seader J D Henley E J Separation Process Principles 2nd Edition Wiley NJ 2006 4 http en wikipedia org w index php title File PsychrometricChart I PDF page 1 5 http www energywise govt nz node 9354 6 http jaycar co nz productView asp ID QP6013 keywords humidity form KEYWORD 7 O Reilly M Personal Communication 2010 8 Rahman M S Food Properties Handbook CRC Press Boca Raton 2009 17 20
References       1   Butler  S.,  Williams  M.,  Tukuitonga  C.,  Paterson  J.,   2003   Journal  of  the  New   Zealand  ...
Appendix A Humidity Data logger Specifications and Calibration The specifications of the Jaycar humidity sensor logger are listed below Range 40 70 C 40 158 F 0 100 relative humidity Accuracy 1 C 1 8 F 3 relative humidity Resolution 0 1 0 1 RH Memory 3200 samples Battery life 5 sec rate 12 months 10 sec rate 2 5 years Software compatible with Windows 2000 XP Vista Dimensions 100 L x 22 W x 20 H mm The calibrated by placing it an sealed container which was partially filled with a saturated salt solution within a temperature controlled environment At equilibrium the activity of the water in the saturated salt solution which may be determined by a variety of methods and is widely available in the literature is equal to the relative humidity of the air in the space above it For saturated lithium chloride at 20 C the activity and hence relative humidity is 11 8 9 while for sodium chloride at 20 C the activity is 77 9 Figures A1 and A2 show that the humidity sensor agreed with the literatures values within its specified accuracy of 3 relative humidity Figure A1 Calibration of humidity sensor with saturated 18 20
Appendix  A   Humidity  Data   logger  Specifications  and  Calibration      The  specifications  of  the  Jaycar  humidit...
lithium chloride LiCl at 20 C Figure A2 Calibration of humidity sensor with saturated sodium chloride NaCl at 20 C 19 20
lithium  chloride   LiCl   at  20    C       Figure  A2   Calibration  of  humidity  sensor  with  saturated     sodium  c...
Appendix B Example calculations The energy savings in Table 1 and the top half of Table 3 were calculated from the following formula Annual energy saving power rating x average hours of use per day x days per year For example the entry in the top right hand corner of Table 1 219 kWh year 2 4 kW x 0 25 h day x 365 25 day year Note that figures have been rounded and that the number of days per year is 365 25 rather than 365 to account for leap years The savings in Table 2 and the bottom half of Table 3 were calculated from Annual dollar savings Annual energy saving x cost of electricity unit For example the entry in the top right hand corner of Table 2 52 year 219 kWh year x 0 237 kWh 20 20
   Appendix  B   Example  calculations      The  energy  savings  in  Table  1  and  the  top  half  of  Table  3  were  c...
shower dome Wellington Installers We recommend you contact a trained installer who is able to supply and custom tyour Showerdome Bathroom Solutions Wellington distributor stockist Absolutely Maintenance Ltd Wellington wide Shower Solutions Wellington wide Odd Job Paul Kapiti Horowhenua TL Property Maintenance Wellington wide Dolphin Showers Bathrooms Ltd Paraparaumu TradeSkills Hutt Valley TradeSkills Wellington Retailers You are also able to purchase a Showerdome from the following retail outlets Bathroom Solutions Wellington distributor stockist Chesters Plumbing Bathroom Dolphin Showers Bathrooms Ltd Paraparaumu Mico Bathrooms Mitre 10 Mega Petone Mitre 10 Mega Upper Hutt Mitre 10 Wainuiomata Mitre 10 Levin Mitre 10 Otaki Mitre 10 Waikanae Mitre 10 Paremata Mitre 10 Crofton Downs
shower dome  Wellington Installers We recommend you contact a trained installer who is able to  supply  and  custom    tyo...
DRIMASTER ANTI CONDENSATION UNIT Condensation dampness is more common than you think particularly in older homes As winter sets in and the temperature starts to drop many of us will notice the problem more PIV How does it work CREATES A HEALTHY LIVING ENVIRONMENT NO NEED TO OPEN WINDOWS TO VENTILATE Significantly improves indoor air quality by removing indoor air pollutants such as carbon monoxide and keeping out external pollutants such as traffic fumes and pollen Clean fresh air is continuously drawn in through the lofts natural leakage points passed through the filters and fed into the property via a central hallway diffuser MOISTURE AND CONDENSATION ARE DRIVEN OUT The filtered air gently pressurises the home from inside out forcing out the stale air The Drimaster Anti Condensation Unit offers a ventilation solution for the whole property using the tried and tested Positive Input Ventilation PIV principle where a small amount of fresh filtered air is introduced into the home at a continuous rate encouraging movement of air from inside to outside This process prevents condensation and removes allergens such as dust mites and the pollutants caused by cooking and cleaning from the air The results are a fresh and healthy indoor environment in which condensation and mould cannot exist and where indoor pollutants including harmful Radon gas are kept to a minimum all great news for allergy sufferers revents condensation dampness Drimaster reduces the P humidity levels in the air preventing condensation mould growth and controlling dust mite allergens mproves indoor air quality Indoor pollutants from cooking and I cleaning are removed while outdoor pollutants including pollen and radon gas are kept out ealth benefits Clinically proven to help allergy and asthma sufferers H xtremely low power consumption Costs around 1p per day to run E asy installation and very low maintenance Filter clean or E replacement every five years 5 Year Warranty For peace of mind
DRIMASTER ANTI-CONDENSATION UNIT Condensation dampness is more common than you think, particularly in older homes. As wint...
DRIMASTER ANTI CONDENSATION UNIT Condensation dampness is more common than you think particularly in older homes As winter sets in and the temperature starts to drop many of us will notice the problem more WHAT WILL HAPPEN IF I DON T VENTILATE The average daily moisture production within a home from everyday activities such as cooking and bathing is typically around 5 10 litres Drying clothes indoors and keeping windows closed whilst cooking and bathing without effective ventilation will only increase those moisture levels further High moisture in homes that are not adequately ventilated is of course associated with condensation dust mites and increased mould spore concentrations all leading to poor indoor air quality DRIMASTER ANTI CONDENSATION UNIT FREQUENTLY ASKED QUESTIONS Will it still work if I have closed doors in the house Yes There will be gaps around the edges of the doors which will enable the fresh air to flow throughout the property Why does the diffuser have to sit in the hallway The diffuser sits in the hallway as the majority of the rooms are situated off it allowing the Drimaster to actively pressurise the whole property Is the Drimaster Suitable for any size house The Drimaster is best suited to properties up to 200m2 Can anyone install it A qualified electrician should be more than capable of fitting the Drimaster Is it cold The air being brought into the property does come from outside however warm air lost at ceiling level will be regained via the diffuser You may notice the air movement but this is very gentle Do I need additional loft ventilation The Drimaster uses natural loft ventilation To check for this look for natural daylight in the loft or feel for natural air movement If you cannot detect any you may need to install a roof cowl or similar for additional ventilation What does the heater actually do The heater will take the chill off the air being brought into the property making it a comfortable temperature when it is fed into the home Will I hear it running No The Drimaster unit is whisper quiet Is it expensive to run No The Drimaster costs as little as 1p per day to run
DRIMASTER ANTI-CONDENSATION UNIT Condensation dampness is more common than you think, particularly in older homes. As wint...
Hints Tips for Installation Follow the installation and maintenance document supplied with the unit paying particular attention to 4 Diffuser frame fixing screws Airflow from two sides 2 Foam strips supplied fit on any of the diffuser sides to guide airflow away from a smoke detector and or obstructions as required Press on bottom Diffuser plate 1 1 ventilation whilst the system is fully automatic its obviously Loft drawing air from the loft and this air has to be replaced 1 1 1 loft sealed from the outside will have a detrimental effect on A the DRIMASTER s efficiency 1 1 2 loft floor or room ceilings below which contain unsealed A holes or recessed lighting such as spotlights can allow the air to be drawn from the dwelling and hence re circulate it Also ensure the loft hatch is sealed airtight 1 2 position of the unit s supply air diffuser in the landing ceiling The should be carefully considered 1 2 1 aware of the possibility of asbestos in the ceilings and the Be regulations requiring a test before you cut the hole 1 3 The position of the unit 1 3 1 Units can be installed suspended from the roof joist or mounted on the ceiling joist 1 2 2 ite the diffuser so that the airflow from it will be of least S annoyance to the householder Note The positioning of the diffuser should be in strict accordance with the table shown below to ensure correct operation 1 3 2 lthough the unit is exceptionally quiet try to keep it away from A over bed positions Airflow from four sides Speed Setting Minimum distance of diffuser from wall 1 100mm 2 155mm 3 400mm 4 625mm 5 850mm 6 1000mm 1 3 3 he unit is supplied with a pre wired mains to low voltage T power supply and a mains fused spur box as the unit is to be on at all times for effective ventilation ensure the power supply cannot be manually disrupted 1 4 Setting to work 1 4 1 the DRIMASTER speed appropriate to the size and type of Set property as detailed in the installation guide supplied with the unit 1 2 3 ite the diffuser so that nothing i e smoke alarms are within S 1 Metre of it and that the air doesn t discharge directly to a wall 1 2 4 ormally the diffuser discharges air from all four sides but is N supplied with foam strips to blank any side with the potential for nuisance see fig above right 2 0 On maintenance None required in the first five years 3 0 On spares The only replaceable items on a DRIMASTER are the filters and they only after five years should a control or motor defect arise then complete unit replacement is recommended Note If you have a wet room which is not situated off the main hallway ie an en suite you may need additional ventilation for these such as a Nuaire dMEV decentralised extract fan FOR HOMES WITH LOFTS FOR HOMES WITH NO LOFT Drimaster Drimaster Heat Drimaster 2000 Flatmaster Flatmaster 2000 The Drimaster provides whole house ventilation for two and three storey homes The Drimaster Heat comes with all the functionality of our Drimaster however has an integral heater to provide heating on cooler days The Drimaster 2000 comes with an intelligent sensor that will measure when the temperature in the loft is higher than in your home The system will then boost to provide your home with the heat gained from the loft Specifically designed for homes without lofts but can be used to ventilate basements and cellars The Flatmaster 2000 comes with all the functionality of our Flatmaster but with an integral heater to provide heating on cooler days
Hints   Tips for Installation Follow the installation and maintenance document supplied with the unit, paying particular a...
DRIMASTER I USER GUIDE FOR OCCUPANTS Condensation dampness is more common than you think particularly in older homes As winter sets in and the temperature starts to drop many of us will notice the problem more The Drimaster offers a ventilation solution for the whole property using the tried and tested Positive Input Ventilation PIV principle where fresh filtered air is introduced into the home at a continuous rate encouraging movement of air from inside to outside This process removes condensation allergens such as dust mites and the pollutants caused by cooking and cleaning from the air The results are a fresh and healthy indoor environment in which condensation and mould cannot exist and where indoor pollutants including harmful Radon gas are kept to a minimum all great news for allergy sufferers WWW NUAIRE CO UK PAGE 1
DRIMASTER  I USER GUIDE FOR OCCUPANTS  Condensation dampness is more common than you think, particularly in older homes. A...
DRIMASTER I USER GUIDE FOR OCCUPANTS I HOW DOES IT WORK I Located in your loft space the Drimaster unit will continuously draw fresh air that comes into your home through natural leakage points in the loft space see 1 2 in above diagram I The air is drawn into the Drimaster through the filters and is gently fed into your home via a diffuser that is located in the ceiling of your central hallway see 3 in above diagram I The fresh air drawn into your home will ensure that old contaminated and moisture laden air in your home is continuously diluted displaced and replaced with good quality fresh air The result is an environment in which condensation dampness cannot exist and where allergens and pollutants are kept to a minimum see 4 in the above diagram WWW NUAIRE CO UK PAGE 2
DRIMASTER  I USER GUIDE FOR OCCUPANTS I HOW DOES IT WORK   I Located in your loft space, the Drimaster unit will continuou...
DRIMASTER I USER GUIDE FOR OCCUPANTS I WHY DO I NEED A DRIMASTER UNIT IN MY HOME AND HOW WILL IT BENEFIT ME I Having the unit in your home prevents I Condensation dampness is more common than condensation by keeping moisture levels low you may think particularly in older homes that and when used correctly it will protect your are poorly ventilated Excess moisture is home from mould damp produced by every day activities such as bathing cooking washing and drying your clothes inside I Research has shown that preventing moisture in a home can reduce allergic reactions to dust I Condensed water provides the ideal conditions mites and other pollutants that affect those for mould spores already in the air to germinate suffering from respiratory disorders The correct and grow damaging your walls furniture and use and maintenance of your ventilation system clothes and contributing to health problems will help to achieve this I The humidity can also increase the number of I The unit will improve your indoor air quality dust mite allergens in the home which can and create a healthier living environment aggravate the symptoms of asthma WWW NUAIRE CO UK PAGE 3
DRIMASTER  I USER GUIDE FOR OCCUPANTS I WHY DO I NEED A DRIMASTER UNIT IN MY HOME AND HOW WILL IT BENEFIT ME   I Having th...
DRIMASTER I USER GUIDE FOR OCCUPANTS I HOW DO I OPERATE THE UNIT At installation your unit will have been set to run continuously to a level that will adequately ventilate your home for the majority of the day I The simple answer is you don t The unit is designed to run automatically As house sizes and occupancy levels vary your Drimaster has 6 speed controls which can be adjusted to exactly suit your home The appropriate speed control for your home will be selected by your installer I IF I NEED SOME ADVICE WHO DO I CONTACT In the first instance please contact your housing provider or Housebuilder Nuaire have a team of technical experts on hand to help Our operating hours are 9am to 5pm Monday to Friday excluding Bank Holiday s contact us on 029 2085 8400 option 2 When calling Nuaire if possible please check your fan for the serial number located on the fan label I WHAT MAINTENANCE IS REQUIRED I To maintain the optimum performance of your Drimaster the filter must be kept clean and clear When the filter becomes dirty the unit does not input as much air into the dwelling creating the opportunity for condensation and musty smells to become evident This will be a signal that you need to have the filter checked and replaced cleaned as necessary I In terms of maintenance the Drimaster requires very little attention A replacement of the filters every 5 years is the only maintenance required I HOW MUCH DOES A DRIMASTER COST TO RUN I To run the unit electrical consumption would typically be about 1p per day However it should be remembered that the unit is making use of heat at ceiling level which would otherwise be lost The unit will switch itself into standby mode when temperatures reach such that condensation would not occur within your home e g during the summertime WWW NUAIRE CO UK PAGE 4
DRIMASTER  I USER GUIDE FOR OCCUPANTS I HOW DO I OPERATE THE UNIT   At installation your unit will have been set to run co...
Thermal Imaging Moisture Detection Heat Loss HVAC Electrical Inspections inspection Detection Using FLIR Cameras Steam inspect buildings of all sizes for water ingress If you haven t had thermal imaging included in an inspection you have not been fully inspected A thermal camera can check the ceilings inside a building when it is not possible to access the roof space Thermal cameras can detect unseen leaks and check if your building is insulated or not Thermal Imaging Camera s are present on all inspection and survey work Environmental Data Temperature Relative Humidity Vapour Pressure Dew Point Inspection Detection Most building reports will talk about moisture content but they do not tell you what the content measured was Without that gure and the environmental data mentioned above there is no information to put your readings in context and answer the question is my building wet You won t know if the reading the inspector got is relevant and neither will the inspector who can t or won t record them Steam takes full psychometric readings in every inspection Pre purchase advice Written plans on how to x any issues discovered Correction If you are taking your home to market you will get two inspections for the price of one The rst will point out things you can x and remedy before you go to market It will include estimated costs and include recommendations and stapes of what to x and how to x it If you are in a position to make these xes Steam will return and update the inspection to re ect the xes you have achieved Applied Structural Drying Removing Moisture after water events Correction With over 500 call outs to water events and res there is no moisture event that Steam has not attended Steam as you would expect own their own specialist drying equipment which ranges from extraction dehumidi cation air movement to heating systems
Thermal Imaging Moisture Detection   Heat Loss   HVAC   Electrical Inspections  inspection   Detection Using FLIR Cameras,...
Installed Probe Systems State of the art framing timber moisture detection Veri able Data Minimal Property Damage Do you want to prove your home is not a leaky home Nothing does this better than a n installed probe system It will save you tens of thousands when you come to sell your home when you can prove to purchasers your home doesn t leak and you have the historical data to prove it External cut outs often condemn houses to expensive re clads regardless of the moisture levels discovered so Steam will never open your cladding with out express written permission from the property owners Immunodiagnostic Wood Decay Test Another world rst from Wellington Detection Veri able Data Partnering with a acknowledged world expert in the science of wood decay Steam are bringing to the market a patented onsite early wood rot detection test to answer the eternal question but is there dry rot present While many Councils are prepared to accept that there may be no free water present onsite everyone wants to know if the wet rot has become dry rot and created structural weakness in surviving building materials With this solution building professionals can get an answer onsite in just 2 hours Liquid Cladding Solution Effective solution for monolithic building systems Correction Prevention Steam is creating the test protocols for a code marked cladding preparation system that will extend the life of monolithic cladding systems and help prevent the cracks and gaps that occur with wind pressure and ground movement in direct x wall systems The products utilised are all currently code marked or appraised for New Zealand use and ageing tests are being conducted in Australia to provide data for the code marking of the system Steam is partnering with Seamless Coatings Ltd Wellington based claddings coatings professionals to bring this solution to the market Specialist Mould Removal First Responders Correction Prevention Mould s a killer and can dramatically impact on the health of any occupant in a damp or leaky building While it s important to diagnose a building suffering from mould growth it is as equally important to be able to remove mould growth ef ciently safely and permanently Steam s biggest project in this area to date has been in the basement of a large government facility comprising over 300 square metres of continuous mould
Installed Probe Systems State of the art framing timber moisture detection  Veri   able Data   Minimal Property Damage Do ...
Steam s biggest produ ata in iable d verif Steam s biggest prokject in this area www thermal kiwi eport very r e
.  Steam   s biggest produ.  ata in iable d verif  Steam   s biggest prokject in this area  www.thermal.kiwi  eport very r...