At i-sells we are a 'Tier 1' Nuaire distributor. All Nuaire Products supplied by i-sells are genuine Nuaire stock and come with a full Nuaire warranty effective from the date of delivery. Any questions? Please contact us!
The unique DRI-ECO-HEAT-HC incorporates all of the functions of our DRI-ECO-LINK-HC unit but with the benefit of an integral heating element, located between the flexible duct and ceiling diffuser.
This heating component will temper the air which is distributed through the property via the ceiling diffuser, thus ensuring a comfortable living environment. This pioneering design sees the low watt heater (400w) react efficiently and effectively, guaranteeing an economically friendly product.
A temperature sensor on the outside of the unit monitors and controls the heater output to maintain the set point. The set point ranges from 5° to 15° and can be adjusted from the ceiling diffuser. If the temperature at the heater outlet is above the set point, the heater will not activate.
Please note, it is not possible to retro-fit a heater to other Drimaster Eco models.
The DRIMASTER-ECO range provides whole home ventilation using the Positive Input Ventilation principle, which introduces fresh filtered air into the dwelling at a continuous rate, encouraging movement of air from inside to outside.
It has become the UK's most popular alternative method of low energy, cost-effective ventilation!
Invented by Nuaire and installed in thousands of dwellings each year, PIV can be a more cost-effective and simple to install ventilation solution, whilst still meeting building regulations.
CREATES A HEALTHY LIVING ENVIRONMENT
MOISTURE AND CONDENSATION ARE DRIVEN OUT
The filtered air gently pressurises the home from inside out, forcing out the stale air.
NO NEED TO OPEN WINDOWS TO VENTILATE
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.
Always get a qualified electrician for fitting the unit!
The unit is supplied with a pre-wired power supply. This power supply unit has a metal bracket incorporating fixing holes, which should be used to fit the power supply to a suitable surface, e.g. a wooden joist.
(Please note, brackets to mount the Drimaster to wooden loft beams are not included.)
The fan unit is also supplied with a fused spur. The 3 core mains cable from the power supply should be connected to a fixed wiring installation, via the isolator, via the spur, in accordance with current IEE wiring regulations.
7 YEAR WARRANTY!
Humidity Sensor | 4 Way Swtich | CO2 Sensor | Remote Monitoring |
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DRI-ECO-RH Nuaire’s latest Relative Humidity sensor which reads the humidity levels in the home and feeds back to the Drimaster unit, controlling it’s running speed in order to maintain optimum comfort. |
DRI-ECO-4S This remote 4 button switch controls the running functions of both the Drimaster unit itself as well as the integral heater. By splitting the control options the occupier is presented with the ability to choose the function which best suits their home. |
DRI-ECO-CO2 A Carbon Dioxide CO2 sensor which must be wired directly in to the mains power supply. This ancillary will provide complete confidence in the property's air quality by alerting the home owner if dangerous levels of CO2 arise. |
DRI-ECO-RM The remote monitoring device will allow readings to be taken from outside the property to determine how long the unit has been running and the operating speed of the unit. This will benefit the social housing provider when checks are carried out. |
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The Drimaster RF system can simultaneously accommodate one DRI-ECO-RH, one DRI-ECO-CO2 and one switch type, either DRI-ECO-2S pr DRI-ECO-4S.
Multiple devices of the same type are not supported.
DRI-ECO-LCClassic |
DRI-ECO-HCImproved |
DRI-ECOLINK- HCAdvanced Link |
DRI-ECOHEAT- HCAdvanced Heat Our Recommended Product! |
DRI-ECO- 3STOREY3 Storey Homes |
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For properties with lofts Loft needed for installation. | |||||
Integral heater For preheating air from your loft. | |||||
Compatible with relative humidity sensor Monitor humidity in any room or rooms | |||||
Compatible with CO2 sensor Great in the living room! | |||||
Compatible with remote two-way boost switch Control from any room in your home | |||||
Compatible with four-way remote switch with boost and heater control Control from any room in your home | |||||
Remote monitoring device Perfect for landlords - Monitor unit performance - No access required! | |||||
Easy accessible discreet commissioning and controls behind diffuser Adjustable controls without the need to enter your loft space. | |||||
Controls/commissioning at unit Controls accessible only in loft | |||||
Modern circular ceiling diffuser Looks great from any angle! | |||||
Aluminium intumescent diffuser Fire-rated diffuser - Complies with regulations | |||||
5-year warrantyThe unit comes with a 5 year warranty: 1 year parts and labour, remaining 4 years parts only (UK and Ireland only). | |||||
7-year warrantyThe unit comes with a 7 year warranty: 1 year parts and labour, remaining 6 years parts only (UK and Ireland only). |
Maximum Area / Property Size (m2) | 200 |
Product Category | Positive Pressure Units |
Product Type | Loft PIV Unit |
Product Group | Ventilation Fan |
Product Variety | Heater |
Length (mm) | 680 |
Width (mm) | 338 |
Height (mm) | 341 |
Voltage (V) | 230 |
Power Min (Watts) | 1.6 |
Power Max (Watts) | 400 |
Weight (Kg) | 6.5 |
Packaged Weight (Kg) | 10 |
Packaged Length (mm) | 820 |
Packaged Width (mm) | 355 |
Packaged Height (mm) | 365 |
Pallet quantity | 12 |
Barcode | 5056043000496 |
Barcode - Type | EAN |
Manufacturer Product Code | DRI-ECO-HEAT-HC |
Airflow Performance (l/s) - Low | 10 |
Airflow Performance (l/s) - High | 60 |
Airflow Performance (m³/h) - High | 216 |
Maximum suggested long duct run (Mtr) | 5 |
Warranty (Years) | 7 |
Quick Search: | QS45548 |
Your question will be sent to a member of our team. We'll email you the answer and post it on this page. If your question is about an order you already placed, please use our Contact Form to reach the customer service team.
Do you supply the optional controls for the new DRI-ECO-HEAT-HC, and can you tell me the price please? Also, do they require wiring or are the wireless? Many thanks.
Hello Andy
Please see the range of control options below.
NUADRI-ECO-2S
NUADRI-ECO-4S
NUADRI-ECO-RH
NUADRI-ECO-RM
NUADRI-ECO-CO2
Hi could you please tell me if this unit would be suitable to rid us of condensation and mould in a old stone cottage as what the approximate running costs are.
Hello NigelThank you for your question. As long as your loft is ventilated IE: has tile vents, or airbricks, or soffit vents for the outside air to come in then this unit will do your application. Nuaire has advised us that the estimated cost per year would be between £30.00 & £35.00, however this does depend on your tariff. If I can help any further please do not hesitate to contact me on 0208 463 9683Kind RegardsAnita
Can you confirm the duct size for drilling the ceiling please? Also, can you extend the duct to two locations with a T-piece as I want to discharge in two locations due to the layout of my property? Thanks Damon
Hello Damon
What controls the heater on this eco heat piv. Does it heat the air all winter 24hrs a day? I can't see it being very economical to run would a ordinary PIV be OK for a 3 bedroom bungalow? How do they cope when for instance the outside humidity today is 92% and the inside is 71%? Hope to here from you soon Colin.
Hello Colin
The heater is thermostat controlled and triggered when the temperature of the incoming air drops bellow comfort level, the range options are between 10 - 20 degrees and the setting is activated by the user (controller is in the diffuser).
The heater should be considered as a means of tempering the incoming air not as supplementary home heating as it would be cheaper to compensate for incoming cool air by temporarily increasing the heating thermostat.
The basic PIV was designed for houses which have a high ceiling at the top of the stairwell the incoming air would be blended with warm air that rises to ceiling height through convection, the heater version was introduced for properties such as bungalows that may have the same air volume but do not have the ceiling height.
You are correct, it is possiblethat during a very wet period we may get periods of high external humidityparticularly if it is wet and warm as the air can retain water vapour andthe lack of air movement (breeze) makes the air clammy and uncomfortable.However, it would be during a time like this that windows and doors are morelikely to be opened to provide additional air change, the continuous air movement prevents stagnant airpockets and creates a drying effect.
Temporary periods of high humidity outside are not a cause for concern as the RH is relative to temperature and even if introduced into the home the higher internal temperature will reduce the RH, even rainy periods during winter do not generally reach very high levels of humidity because theair is less able to hold moisture as vapour and during very cold periodshumidity can drop to 25% - 35%, evaporation of rainwater after a fall iscreated less by heat evaporation but is usually caused through increased airmovement due to high winds (same effect as drying clothes on a line) and it isduring these periods when we want to keep all of the windows and doors shut,but continue (as needs require) to create water vapour, internal humiditylevels can be kept stable through strategic use of heating, insulation andcontrolled air changes.
I have tried to keep this answersimple but also hope it answers your question.
HI, can you tell me what the differences are between the Drimaster Heat and the newer Drimaster Eco Heat version please?
Hi Kelly
We have a loft which has had spray foam insulation added many years ago, yet we have really bad condensation, does the Nuaire product still work effectively with the spray foam ?
Hello David
I have moved into a period property on three levels including a basement which has been tanked however we have high levels of humidity in the North facing basement and some salts & black mold appearing on a few internal basement walls. Although we are about to upgrade the central heating I expect that high humidity may continue to be an issue would the Nudari Eco Heat or any other system help?
Hello Una
Our attic is sealed with foam spray on the rafters, with an old velux window, would this unit be suitable? How much does this cost to run in a 3 bed semi?
Please see previous answer
In the pdf on page 3, section 10.4 it says, "The set point ranges between 10 degrees C (fully anti-clockwise) and 20 degrees C (fully clockwise). If that is the case the mid point would be 15 degrees C. But in the I-sells youtube video I posted below it says "they recommend a mid point of 10 degrees." Which is correct please? https://www.youtube.com/watch?v=mz4jbXrkTWM&index=2&list=PLia-C2J6cpQj7CojIV2oWLiQacOnGdkki
Hello Andy
Thanks for your reply. I was not asking what temperature is correct for a home as that is subjective. I was asking what the mid point setting of the blue dial is. I assume it is 15 degree C but at 5 minutes 10 seconds of the isells video I posted in my previous post it states the mid position is 10 degrees C.
I have checked the product brochure (specification section) and this states that the set point will be adjustable between 6?C and 20?C.
do I need to close the air-vents that are in my pvcu windows
Hello Dave
I have got my central heating boiler in the loft,is it ok tofit a unit also
Hello Frederick
The only answer I can offer sight unseen would be yes, provided the loft is very well ventilated, there are some Gas Safe guidelines in BS5440 / C1which recommends a minimum distance of 300mm between a flue and a lateral 'ventopening' however, this does not appear to take into account an actual airintake point for PIV or MVHR and does not seem to have been updated to accountfor this type of system.Basically all care must be taken to avoid creating a negative pressure t hat may draw flue gases to the unit. If you download the product pdf title installation and Maintenance there is a very good section at the front regarding inspecting your loft for adequate ventilation. However, if in doubt we would recommend you consult with the boiler manufacturer or a Gas Safe engineer.
Hi, I notice in the picture it has a dial on the bottom part, which I guess is for altering settings. Does this means that you have to go up ladders to alter it if need to or I is there a wall mounted switch that can come with it to make this easier which also has an on off switch when away on holiday etc.
Hi. Trying to make my mind up on the best one to get for my house. Reading question 5 from Colin got me thinking which one I actually really need. Normal PIV model or the newer heater version. My upstairs hall where it would go has a very high ceiling. Older style house with 9' ceiling however top to stairs to foor on the first part landing is a good 10 to 11'. I have read that the normal versions pump out cooler air and some have stated it can get a little chilly. Whereas the heater heats the air flow. What is the difference in temperature between the two? and which one is best for an older house with higher ceilings. There's a big difference in price, so would like to get the correct one. Don't want to be left regretting getting one that feels chilly when you walk past it, but don't want one that cost more on my electricity bills when I don't really need it. Regards
Hello Paul
Hi.Our loft air quality is not great tends to get black particles floating around which tends to cover boxes etc. There is a v slight smell too. Our insulation in the loft may need replacing it has vermiculite with normal insulation roll ontop. It would be difficult job to replace. My concern is the quality of loft air venting around the house. I have heard people on forums telling stories of musty smells being distributed around the house. Can the PIV filter cope with this or will it need need replacing often surely it would be black in no time. We do have new roof vents so fresh air can circulate. Can you connect the PIV to draw outside air instead of using internal loft air?? A friend of mine claims he has done this but using a Kair PIV unit. I know you could use a flatmaster & connect but we have a standard 3 bedroom semi + loft so would not be adequate. Looked at Whole House Ventilation which does draw air from outside but this is obviously an expensive option. Any
Hello Jason
If you installed the Dri Master under these circumstances it would not improve air quality or controlcondensation in your house or the loft as the means of drawing air into thevoid are not sufficient for either.
Checkto ensure that the loft has adequate ventilation. There may be occasions wherea loft is so well sealed that additional ventilation may have to be provided. Ensure that all water tanks are covered and sealed. Checkthat all water pipes are lagged. Ensure that any extract fans are dischargingto outside and not into the loft. Check that the loft hatch is sealed.Ensure that all holes in the ceilings are sealed i.e. recessed ceiling lights etc
Oncethe loft ventilation has been increased or reinstated (rolling back the insulationat several points or installing sections of open ducting to clear an air paththrough it) the installation of the Dri Master can go ahead and the throughflow of air to the void on the way to the dwelling will create air change andair movement diluting stale air eventually drying the void andthe dwelling.
This may take several days and cleaning of the filters every few weeks initially but after a short time the air being introduced to the dwelling will be from atmosphere.
Trying to decide between model with or without heater - what is the difference in running costs?
Hello Sarah
The heater is thermostatcontrolled and triggered when the temperature of the incoming air drops bellowcomfort level, the range options are between 10 - 20 degrees and the setting isactivated by the user (controller is in the diffuser).
The heater should beconsidered as a means of tempering the incoming air not as supplementary homeheating as, over a prolonged cold spell, it would be cheaper to compensate for incoming cool air bytemporarily increasing the heating thermostat.
The basic PIV was designedfor houses which have a high ceiling at the top of the stairwell the incomingair would be blended with warm air that rises to ceiling height throughconvection, the heater version was introduced for properties such as bungalowsthat may have the same air volume but do not have the ceiling height.
The answer is really if you have a house and the system is to be installed in the loft supplying to the stairwell you probably do not need the heater version. If the heater was used regularly over a bad winter it could add up to 35.00 per year to the running costs.
Why does my nuair fan only switch on when the hall light is on?
Hello Lynn
If I wish to leave the Drimaster eco heat on all year round to improve air quality, when the weather warms up is it ok to open some windows in my bungalow or will this disrupt the efficiency of the PIV unit?
Hi Andrew
I have a ground floor flat which has severe mould problems, despite all trickle vents being open. It has only electric heating. Could I use 1 of these units to solve the problem, and if so which would be best? With a heating option if possible.
Hello Suzanne
Hi, we have a 3 bed bungalow with a vented loft space. Bad condensation particularly in bedrooms on windows. In our bedroom we just had a lovely bespoke fitted wardrobe on an outside wall, which infuriatingly gets condensation on external wall if temperatures drop. I'm interested in your product. Would I need 3 units, one for each bedroom? We have 2 close down one end, but another at opposite end of bungalow. Is fitting in bedroom ok with air blowing in vent?
Hello Gwen
I have a 3 bedroom property that has been over sealed by the previous owners renovations. My sons room suffers greatly from black mould on the walls as does the hall way, which even forms puddles at the foot of the stairs during colder months. I have looked at getting one of these units to help reduce the condensation problem however I think we would need a second outlet in the lads room. You have mentioned in a previous answer about splitting the airflow to 2 locations by reducing the 200mm outlet to a 150mm. How would this work if the heater unit is fixed with a 200mm input? Also do you supply the reducer parts and ducts/diffusers?
Hello and thank you for your question
our electrician set this at number 1 should it be set at 2 please answer to my e-mail address
Hello Joyce
Will PIV "work" alongside continuous/constant bathroom fan extraction (6-15 l/s). The concern being that the new air introduced into property by the PIV will simply get extracted by the bathroom ventilation without allowing the PIV to build up adequate pressure/flow. That or the effect of the PIV will be minimised. Would you recommend turning off continuous bathroom ventilation if present?
Hello Bill
Hi, I am looking at putting a unit into my daughter's flat and am looking at the heat and non-heat units. there seems to be a bit of contradiction in your previous responses to running costs. In one response you say £30-£35 per year and in another it's £50 per month. I presume the latter is assuming the unit is running constantly, which I believe it doesn't: I understand that you can set a thermostat on it and it is only when the loft air temperature falls below that setting that the heater will 'kick in'. Obviously £50 per month is very highand would be prohibitive so do you have any real data on which to base running costs? Thanks
Hello Trevor
Hi there does the product come with a 240 v mains plug as I have a mains socket in my loft to plug into.
Hello Michael
Hi. Does the ceiling duct have to be positioned in the centre of the house? Due to a loft extension, it will not be possible to put the duct at the top of my stairwell. The only open loft space we have is 8-10ft away from the top of the stairs, above a small corridor. Would the device still work sufficiently in this position? Many thanks.
Hello Martin
Which model do I need to purchase for a two bedroom Bungalow,? Also does this unit need to be wired into the electrics,? Do you have any recommended fitters based in the North east of England.?
Hello Peter
HI - does this machine make a noise at all? and can it be fitted in a thatched property (it its almost windy in our loft space!)
Hello, I am torn between whether I buy a heated unit or a standard one. What would determine this issue. I need one for a 4 bedroom house, one for a three bedroom house and one for a single bed flat with loftspace. Could you advise? Thanks
Hello Stuart
Is the heater just for comfort (respondents talk of cool air being circulated when no heater) or is it essential for the quality of the air circulation (is heated air more efficient than cool air)? Thanks Richard
Hello Richard
The with/without issue should be determined by the type of dwelling in which the unit is to be installed and where thediffuser is to be located.
The system is designed to introduce air at high level and in houses,when heating is used, the warmest air naturally rises to ceiling height and is kept there by loft insulation, thestairwell ceiling generally being the highest point in a house therefore playshost to some of the warmest air in the dwelling, the benefit of which, is notfelt. If the input can be located at this level the incoming air is immediatelytempered and warm air redistributed. This type of installation would NOT require theheater version.
In a single floor property with lower ceilings 2.4m the air atceiling height is less warm and the heat transfer to incoming air is reducedand in this case consideration for including the heater may be given. However if, during a severe weather period, cooler air was being introduced over any length of time it would be muchmore cost effective to compensate by temporarily increasing the central heating by acouple of degrees than running the heater option.
i still have a little condensation on windows after frost i have it on at number 3 i live in a three bedroom bungalow
Hello Joyce
I would like to know the following: The Nuaire Drimaster-Heat-Eco can have the diffuser on a right wall. When the diffuser is on the roof of the house, be on a side wall, as close to the ceiling as possible. I have loft, but the top of the rooms is low, so I only have the diffuser aside. One more question my apartment has a strange setup, so I'll have to put two of these appliances on each side of the house (and the two with the same problem as the diffusers). But the question is whether they can work together, and with the same commands? Thank you.
Hello Paulo
Can the heater and unit be supplied from a spur off of the lighting circuit?
Hello Graham
is it possible to turn on/off the heating element from the hallway control unit i.e. not just turn it down but disable the heater so that it does not temper the incoming cold air until I want to switch it back on in the vey cold months? (sorry I cant find a user manual online)
Hello Graham
Hi, we live in a cottage with condensation / mould problems at the back of the building. There is a hatch at the top of the stairs, but because it's a vaulted ceiling, the only place to house the inlet / outlet would be in the hatch cover. Is this feasible? There is a good sized roof space to one side of the hatch, but this is over a bedroom.
Hello Stewart
Hi Are the remote controls battery powered? Can I connect both the Humidity and Control sensors together to the unit? Regards
Hello Rob
I am hoping to purchase one of these, but my loft hatch takes up quite a bit of my landing ceiling. What’s is the closest the grill can be to walls/loft hatch/light fittings to work efficiently
Hello Brennan
Hi I have just had the unit fitted by a NUAIRE recommended fitter and after half a days running, the unit has an 'F' flashing on it. According to the manual this indicates a fan failure and requires a replacement unit. Serial Number of unit is 3794989 Please advise Regards Chris
Hello Chris
Hi I am having a problem with the drimaster eco. when I try to pair a 4 way switch to the drymaster its not pairing up . I have tried 2 new switches. also when I first power up the drymaster its not doing what its supposed to do hope you can help thanks carl
Hello Carl
will this unit do a 4 bed house ? or would something larger be required.
Hello Chris
I have the original non heated green Nuair Drimaster which needs to be replaced. Would the new eco heated blue version fit my current square ceiling diffuser (given the heat unit attaches to the new circular diffuser)? Or should I buy the previous green heated model which you have old stock? The eco one seems to be preferable if it will fit. Thanks, Paul Watts
Hello Paul
Hi, does this unit come with everything i need to fit it or are there extras required, like switches, controls, thermostats and the vent that fixes to ceiling. I dont want to order it and then find there are additions required. Thanks.
Hello Bill
I am considering fitting a drimaster eco heat in the hall of my three bed bungalow the central heating thermostat is 1.5 metes from where I would need to locate the diffuser would this cause any problems. Also the door to the lounge is 1.5 metres away ,would you feel the cold air coming into room. making it uncomfortable
Hello Steve
Can you recommend an experienced installer and, if so, what would be the approximate costs for this product?
Hello Peter
Do you have a fitting service,I don't like playing with electrics thanks tony
Hello Tony
2 things; I have had the unit fitted and it has already cleared up the comdensation problem in 2 weeks flat. I am now looking to set the correct speed[it was set at 4] for normal running going forward and also the temp which was originally set at 14C. Also,what happens to the unit in spring/summer and can it be switched off then? It has been hard wired in to the supply
Hi Duncan
Do you have to keep internal doors open for the drimaster to work?
Hello Sian
Do you know the contact details of a good, reliable electrician in the Meopham, Kent area who has history of fitting these devices? We have asked around and a lot of who we have called have not heard of them?
Hello Neil
Hi we live in a tall 4 bedroom house - there are 4 floors including a basement and the ceiling are quite high. Would this unit work for us or is there a different unit that would be better? Thanks
Hi Emily
Hi, I have read on forums that people are re-assured that only clean air enters the house, even filtering out traffic fumes - but I read on this site that the filters are only G3. G3 seems to only filter big stuff so no fumes for sure... but will it stop glass fibre dust from the loft, please?
Hello Paul
Hi I have a tenanted 2 storey 2 bedroom terraced house and would like to buy one of your units. Looking at your info it does not seem too necessary to buy the heated unit. In my case it would be fitted at the top of the stairwell ceiling. If I bought the non heated one, could I buy and fit the heater part to it later if there were problems? thanks Jon
Hello Jon
If I understand the I&M PDF correctly, the only way you can switch off the Heater function is by installing a 4 way switch (and not on the defuser controls)? Also my 3 bed bungalow's inner hallway is only 870mm wide, so I'm assuming I can really only install the model at Speed 2 given the siting requirement in Paragraph 4.1?
Hello Stephen
Hi i would like to know if their is a problem with the drymaster how do i get it fixed
Hello Damian
We have a extract fan in bathroom with open vent in ceiling will this effect the drimaster from working properly or do we need a sealed vent.
Hello Tony
Hi can this unit be fitted DIY or for the warranty does it need to be fitted by a trained engineer
Hello Colin
Having installed and powered up the Nuaire, how do you then adjust the fan speed? The instructions in the box suggest doing this at install. Do I need to power-off & on?
Hello Andrew
Hello Could you tell me if this product would be powerful enough to perform satisfactorily in a 5 bedroom house without being too noisy? Thanks
Hello Sav
I have a drimaster eco heat fitted.The heater is turned to minimum but running costs have been very high.Is it worth getting a nuaire 4 way switch to turn off heater or how do I disconnect the heater only.
Hello Peter
will it work in a dorma bungalow
Hi Peter
Which fixing method gives the least amount of noise while in use? The standard fixing or the joist mounted fixing? Do you have something to compare the running sounds at minimum and maximum settings? Such as sounds like distant traffic? of a jet taking off (which I doubt :-) )
Hi Hil
40dB - Library, bird calls (44 dB); lowest limit of urban ambient sound | One-eighth as loud as 70 dB. | |
30dB - Quiet rural area. | One-sixteenth as loud as 70 dB. Very Quiet. | |
20 dB Whisper, rustling leaves |
| |
10 dB Breathing | Barely audible |
My house/area has a high water table with ~1cm of standing water under the floorboards in certain parts of the house at various times of year. depending upon the rainfall and water table. I have high humidity year round due to his, but no condensation issues. Is this unit suitable for my situation? Thank you
Hello Jason
How you know if the heater element is working? The air coming out feels as cold as outside. We've turned the up temperate up to max. I look forward to hearing from you.
Hi Linda
Do you have a installation service
Hello Bill
Hi there. I am considering purchasing the Drimaster Eco Heat Positive Input Ventilation Unit With Integral 400W Heater. I live in a single storey stone cottage which suffers from quite bad condensation. The Humidity levels are constantly around 70-80%. From the reviews of this product and your answers to any questions it would seem that this product may help. My cottage is quite long (around 25metres long) with a corridor running down half of it (the bedrooms are off the corridor) then into a large living and kitchen area (10m in length) which has a higher ceiling than the rest of the house. Please let me know if this is the unit that you would be recommending in this instance.
Hi Adam
I have a double thickness ceiling to go through as it is old lath & plaster which was tacked over with plasterboard then plastered over. Will this cause a problem for me?
Hello Len
We have put 'Envirovent' systems into a few properties and they recommend that the bottom of all doors are cut so that there is a 10mm gap at the bottom so that air can flow if doors are closed. Is this the same for the NUAIRE systems which I have only just discovered on the I-sells site
Hi Barry,
In the instructions it says the following under Setting the Temperature Speed Control Option: 1 (Default) At loft temperatures below 19°C the unit will operate on “Normal Operation Mode”. At loft temperatures above 18°C but less than 24°C, the unit will switch automatically to “Intelligent Heat Recovery Mode”. At loft temperatures above 23°C the unit will switch itself automatically to “Standby Mode”. 2 At loft temperatures below 19°C the unit will operate on “Normal Operation Mode”. At loft temperatures above 18°C but less than 31°C, the unit will switch automatically to “Intelligent Heat Recovery Mode”. At loft temperatures above 30°C the unit will switch itself automatically to “Standby Mode”. 3 This option removes the temperature sensing function out of the unit. The unit will operate continuously in “Normal Operation Mode” depending on the volume control setting selected. 4 At loft temperatures below 16°C the unit will operate on “Normal Operation Mode”. At loft temperatures above 15°C but less than 28°C, the unit will switch automatically to “Heat Recovery Mode”. At loft temperatures above 27°C the unit will switch itself automatically to “Standby Mode”. 5 Not applicable for the HEAT model. What are the following modes, and how does the unit operate in those modes? “Normal Operation Mode” “Intelligent Heat Recovery Mode” “Heat Recovery Mode” (I assume this just has the word Intelligent missing? or is it a different mode?) “Standby Mode” Many Thanks, Dennis
Hi Dennis
hello just had this installed and is working fine, when does the heating side of it kick in, and how hot is the air from it, just need to make sure its working ok, have got the setting on 3, and the other button is on the plus side max
Hello Peter
Dear Sir/Madam, I purchased 2 units from for 2 different homes. However, I need help with the issue in the instructions that I have pasted below: "5.0 DIFFUSER INSTALLATION 5.1 Siting the Diffuser Position The diffuser has a unique air throw pattern and it is essential that it is located correctly in the central hallway in single storey properties or in the ceiling of the top floor landing on 2 or more storey dwellings. The diffuser discharges air evenly in all directions along the underside of the ceiling. Speed Setting Minimum distance of diffuser from wall 1 100mm 2 155mm 3 400mm 4 625mm 5 850mm 6 1000mm" I did not see these rules before my electrician installed the unit. However, he installed it with 200mm clearance to the walls in 2 directions, and over 1000mm clearance to the walls in 2 other directions. He then used the enclosed "air dams" to block off the 2 sides that had only 200mm clearance. My questions are: 1) Can I run my fan at speed 6 based upon the fact that the 2 sides from which the air flows have more than 1000mm clearance to the walls? 2) If not, what is the maximum speed setting that I can use on such a diffuser? 3) Is it advisable to leave the 2 sides with 200mm clearance blocked up or should all 4 sides be unblocked?
Hi Elie
Hi, I notice you answered someone with 'and you have ventilation in your bathroom and kitchen and the loft is ventilated then this unit will do your application', however our bathroom does not have an extractor fan, will the PIV still work?
Hello Philip
Do you have anyone who could look at my property to see if this can be fitted and is suitable please ?
Hi Sandra
i have a stone cottage in cornwall - the drimaster seems perfect to reduce damp and condensation in the house. We have a subfloor - about 1m deep and ventilated poorly with airbricks - this is very damp. would the loft mounted drimaster also help in the subfloor or should i buy a second unit to suck air from the house and direct below the suspended wooden floor thanks ben
Hello Ben
Hi, can you extend the length of the ducting? If so which one would you recommend. Thanks
In a new build property, if installing this is it still necessary to install bathroom extractor fans?
Hello Janine
hi why have these units gone up from £340 to 410!! this has basically priced me out of this product.
Hello Andy
2 fitting questions. Our upstairs has dropped ceilings below a loft (approx. 18" void space below lathe & plaster ceilings). This makes access to the loft-side of the dropped ceiling very difficult. Can the diffuser unit be fitted from below (i.e. attach heater and ducting and wires working in the hallway) and passed through the ceiling hole assembled? We can then hook and pull through the duct and wiring to attach to the filter and motor. Secondly, can the ducting be extended more than the 2m supplied if necessary?
I currently have a standard drimaster and would like to change to a heated version, does the heated version diffuser match the dimension /size of the standard version as I obviously already have a hole cut in the ceiling and would not want to re-cut another hole if possible? Thanks
Hello Chris
Hello Will this product be suitable for a 2300 sq ft house? Will performance be affected by the hall below the loft position having a glass atrium entrance to the house due to it being reverse accommodation?
Hi John,
The DRI-ECO units are designed to ventilate properties up to200m2 with installation of the diffuser in a central location.
If you have any further questions please do not hesitate to contact me.
Ben
can you recommend an installer for the CB6 area please
Hi, to be honest, any electrician should be able to install it
We have a 3 bed roomed detached bungalow with condensation and mold problems on a north facing wall throughout the property. We also have a new professionally installed boiler in a well insulated the loft space. The hallway is a good size but we would not be able to position the unit centrally because of a light fitting. Would we require a four way control panel as well? We are currently using a dehumidifier to solve the problems of condensation in the kitchen. It looks like the Nuaire Eco heat PIV product would solve our problems, please advise.
Hello Ivan
Does this product work with the rf controls?
Hello Daniel
Hi, In the winter we get terible condensation on 1 side of the house which is a thick stone outside wall. Its bad in 2 of the 2 upstairs bedrooms. We have a big house with 8 bedrooms in total all with en-suites. My questions is would this system work if placed in the landing ceiling even though the doors to these bedrooms are closed at night time and in the day and sometimes? Just wondering how it would work or if we would need 1 for each of the bedrooms that are a problem? I am then concerned that cold air will be being blown into these rooms so would need the heating on 24/7? thanks in advance
Hello Scott
Hi there, I was wondering if this unit could service a house 3000sqf?
Hello Sean
Hi I moved into a two bed Large bungalow 2 1/2 years ago we decorated it through out but in the first winter we noticed mould so I bought and installed drimaster eco heat which I set at 4 and over a period off time has worked well but we are now noticing the wood work round the doors and skirting boards are shrinking and cracks appearing in the plaster we do now the place was done up before we moved in have I had the unit set two high and over a period off time it has dried the place out
Hi Steve. Having the unit on speed 4 wouldn't cause that to be honest. It may be worth checking your filters, to see if they are clogged. They can be easily cleaned, and can last up to 5 years, but they do need cleaning. If there is any residual duct etc in the fan, give that brush out, with a soft brush. The more you maintain it, the better it will perform, and it will last longer too.
We live in quite an exposed location. Does the unit generate sufficient pressure to push damp air out in a location like ours when the wind is often blowing against the house or would a more powerful unit be required?
Hi, the fan itself does have various speed settings dependent on size of the property. I'd recommend having it on it's highest setting for a day or 2 to purge the property, then lower the speed setting down. The wind will make no difference, as it is forcing moisture our from natural leakage points in the property such as key holes, extractor fan duct runs, air bricks and grilles.
Hi, I am interested in the nuaire drimaster eco heat PIV, my question is , my property is a dormer bungalow and the only position for the vent would be in the ground floor hall. Would having a room above the vent effect the efficiency of the unit?The rooms I want to improve are on the ground floor. regards Andy
If the loft space has been converted to a Dormer, then the Drimaster won't be suitable, as it relies on a well ventilated loft space to ventilate the property. You could look at the Flatmaster 2000. There are 2 options Left or Right handed, depending on where it is sited. You can install the unit in the hall way and duct out to the exterior of the property, That unit will do the same job.
hi can these units be fitted by one's self if so will it affect the warranty
Hello Bryan
I have major problems with condensation which after reading the reviews, I think this unit will eliminate. I have supplied my tenants with a dehumidifier which they are obviously not using! I would like assurance that my tenants will not be able to turn this unit off or down. Thanks for any help
Hello Sharon,
Can I install buy fitting a plug top with 3 Amp fuse on the flex and plugging into an existing socket? Would this impact warranty?
Hi, it would impact the warranty, as the unit needs to be installed via the fused spur that comes with the unit. They can be wired y to the lighting circuit.
Hi! Have fitted Drimaster Eco Heat about 3 weeks ago. Very positive effect on the condensation, so happy with that. But I'm concerned as the noise level from the unit has increased noticeably since the the install. It was hard to hear at first (I'm using setting 3-4) but now you can clearly hear vent humming in a landing. Any advice on reducing the noise level (unit is suspended in the loft) or diagnosing possible malfunction?
Hello Andrey
I'm currently fitting this at the moment and we have loft insulation with boards on top. Is it ok to put the insulation/boards back close to the unit or should we leave some clearance? (Not sure if the heating casing gets hot.)
Hello Neil
Can I put this unit in cellar instead? Or do I have to have two units building is two story. I ordered a £9 unit to see if my place is dry I cannot remember what it is called but it was not in my basket when I paid. Please how do I get one so it can come with my Drimaster as I do not want to pay for delivery. When I put drimaster in basket you asked me if I wanted the gadget to tell dryness number and I pressed yes. Thank you Deanna
Good morning. Deanna.
hi will the carbon filter upgrade kit fit this unit
Hello Paul
Hi, is it possible to retrofit the remote control units to the older Drimaster Heat units? Or is a separate option available for the older models? Thanks.
Hello Alan
could you please tell me why in summer months i get a horrible sewage smell around bungalow but in winter months this does not happen
Hi Joyce,
Hi, I have an old Dr, however, wimaster unit which is now making a loud click noise so I think something has come loose inside. So I am looking at replacing the unit. I have a couple of questions and hope you are able to answer these for me. 1) My current unit is on the floor in the loft on some batons to raise it up, can this unit be installed the same way or does it need to be hung from the rafters? 2) The current unit has heat but this is on constant and not something I have ever adjusted, with the new unit can I set it and not have to change it? Thank you
Good morning Lee and thanks for your questions.
I have ordered the basic Nuaire Dri master HC unit for our 3 bed bungalow to hopeful eradicate condensation. My query is would it be ok to position the unit above the hall ceiling approx 1.5metres in from the main front door as this is where we have a radiator and so the warm air from this can counter any draft from the unit and the cooler loft air. We have an L shape hall and the location would be adjacent a bedroom door and in line with mother but round the corner of the L from the main rear longe and kitchen. Thank you
Good morning Paul. In an ideal world you would need to site the unit centrally, but an L Shaped Hallway makes that difficult. Are you able to email me a sketch of the layout with rough dimensions to marc@i-sells.co.uk, and I will come back to you?
Hi, Im a bit confused with all the different models available from Nuaire. Please could you confirm if this unit is compatable with optional remote control switch and the humidity sensor. That would be appreciated. many thanks, Tim
Hello Time
I have read previous questions and answers and see that you do not recommend the heated version in a house where the unit will be installed at the top of the stairwell as warm air will rise to the unit. My house has high ceilings and a loft, but I'm not sure that it will be occupied all year round, so may sometimes be unheated. In that situation should I buy the heated version or not? Many thanks
Good morning Alison and thanks for your question.
Hello. I finally fit my drymaster eco today. The moment unit start running start making squeaky noises. Also it sounds like motor rubbing inside against something. Is it any chance to replace main unit? Or repair it somehow? Thank You
Good morning. Can I ask you to obtain the serial number off of the unit, and give the sales team a call on 020 8463 9696 to discuss options.
Will the unit definitely cure condensation forming on backs of drawer units etc. Rooms are already well ventilated. No drying of clothes indoors and no tumble dryer indoors. My contractor wants nearly £1000 to fit your unit and don’t want to spend that sort of money if it doesn’t definitely solve the problem.
Good morning Trevor. I am hesitant to say "definitely" as there are factors that can hinder the Drimaster, such as, the loft not being ventilated, doors being closed with very little gap underneath. Providing the loft is well ventilated and is still drawing in plenty of fresh air, then the fan will gently bring fresh air into the property. For it to be effective, you will need either a 20mm gap at the bottom of interior doors, or each door to be slightly ajar, and don't butt up furniture such as wardrobes and chest of draws against the wall. try to leave a gap of about 3 inches to allow air to flow.
If installed with loft/floor boards, judging by the photos the heating element would clash with the loft boards. Is it possible to extend the tubing between the diffuser and heating element to avoid cutting out more of the loft board than needed? I am also thinking about servicing needs in the future and just in case the element requires replacing it would be better to avoid lifting floor boards.
Good morning Jason. I would advise you to call Nuaire Technical on 02920 858400 (option 1) and they should be able to advise you.
How can this reduce humidity inside the home during wet days/months when the humidity outside is much higher than inside?
Good afternoon Steve.
Is it acceptable to position the landing smoke detector on the bottom of the ceiling diffuser? I have heard this is an option on other units, but the installation instructions do not mention it?
Hello Tobi
do i have to switch a heat button on or is it automatically heated
The Heater is automatic, but you can adjust the threshold that the heat activates by. This ranges from 5 to 15 degrees Celcius.
Hi I have one of the Drimaster eco heat models and the 4 way switch installed . Is the heater switched ON when the orange led is illuminated or does the orange led just mean that the heater circuit is enabled ready to kick ON & OFF according to where the blue thermostat control is positioned . I ask the question as I am conscious that the orange led being illuminated will be constantly running the heater element . Regards
Good morning. The LED denotes that the heater is in Auto Mode, which basically means it will activate when the temperature drops below the temperature you have set, so therefore if the heater isn't on, then it won't be using any more power.
What is the difference between ECO-Heat-HC. model and the ECO-Heat-HCS model
Hello Barry
Could you please let me know when this will be dispatched. When ordering it said next day delivery when in stock but didn't say whether it was or not.
Hello Grant
Hi, our top floor bedroom covers the whole floor (no landing area). would this unit still be effective for the whole house?
Good morning Martin. The Drimaster will only be suitable if the loft space has not been converted and is still well ventilated. You may need to speak to someone at Nuaire Technical to find the best position to install if this is the case. If the top floor is the loft, then you would requite a Flatmaster, possibly 2, as they are only suitable for properties over 100m2.
Can this be mounted on a plaster/Lathe ceiling. I have 250mm between joists is that sufficient to install
Hi Rob.
Hi. Any idea what the heat recovery function it that the manual indicates please? Can you use the HC model without the 4 boost switch and add it later? An inline extractor fan (about 1.5m away) for the bathroom is in the room behind the hallway but that only comes on when the lights get switched on. Is this likely to stop the PIV flooding air to the rest of the house?
Hello Spencer
We would like to use your product in a rental property. The roof has a very low pitch which it is not possible to stand up in. Would this cause any problems with the operation of the unit.
Good morning Alan. It depends on a few things really. Is the loft still ventilated? It should be. How low is the pitch and rough size property are we talking about?
How safe is this product with the heating element in terms of fire safety in the loft. Does it have a automatic cut-off safety aspect. I am worried about running a PIV with heating element when for instance you are away on holiday
Good Morning John
what is the db noise of the fan in the Drimaster Eco Heat Positive Input Ventilation Unit With Integral 400W Heater By Nuaire
Good afternoon Jason, and apologies for not responding sooner.
Energy now being very expensive-how long should the Drimaster be switched on for? How much does it cost to run (say daily). Does it need to be on 24 hours to work efficiently? Thanks.
Good morning Mark. The Drimaster will need to be running 24/7 365 days of the year. It works by pressurising the property through positive pressure. If you switch it off, it will a) stop performing and b) it could leave moisture inside the unit that could decay the electrics, which can lead to invalidating the warranty.
Hi there, I bought this a couple of weeks back and installed at the weekend. It's already making a difference - humidity has dropped within the house and the air just 'feels' better! Really pleased so far. Question though regarding the heater. Despite the temperatures being quite low the last few days, the air coming from the diffuser is cold. I've tried altering the small blue dial on the diffuser panel, but doesn't seem to make any difference. There was a kind of heater element smell briefly - like the element was warming - but the air still feels cold, the element doesn't glow as I would expect so not sure if it's working correctly. Is there some way/setting where I can 'force' the heater to kick in? Thanks for your help. Lee
Hello Lee
Hi, We’re just getting around to installing these 2 PIV’s, one for our house and one in the parents, but only 1 came with a cord to install it from a rafter. Please can you confirm if the second one should also have come with a cord? Many thanks, Jonathan 07885998144
Hi Jonathan. Yes, both units should come with the cord to suspend the units. If one of the boxes is missing the cord, can you grab the serial number off of the box, and email it to me along with the delivery address to marc@i-sells.co.uk
How long is the standard duct length on these products. Can the duct be added to if I need a slightly longer run?
Good morning Russell. The duct extends fully to 2m. Sadly, it can't be added to, as it will have an impact on the unit.
Would your company offer the installation services? And will you have a site visit to the loft before I place the order?
Good morning Jim. We only supply the products, we don't install them.
Do the eco-heat and eco-heat with switch versions come with the PM10 filters or are they only PM2.5? Is it only the eco-heat-NOX that comes with PM10? Thanks
Good morning, The Drimaster filters are PM10 as are the white outer filters on the NOX Kit. The inner filters on the Nox Kit are PM2.5.
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