Nuaire Drimaster ECO HC
For homes with lofts – Whole House Condensation Control
Unit controls are conveniently located within the ceiling diffuser, allowing easy access from the hallway at arm’s reach.
The Drimaster-Eco is a loft-mounted Positive Input Ventilation (PIV) system designed to combat condensation and damp in residential properties.
It continuously introduces fresh, filtered air into the home, promoting healthy airflow and reducing moisture buildup.

Boosts Indoor Air Quality
The Drimaster-Eco improves air circulation and actively removes airborne pollutants such as cooking fumes, cleaning chemicals, pollen, and Radon gas. This creates a cleaner, fresher indoor atmosphere, particularly beneficial for homes in urban or high-traffic areas.
Actively Filters Air For:
- Household Moisture
- Pollen & Allergens
- Dust Particles
- Cooking Fumes
- Nitrogen Dioxide (with NOx filter version)

Health benefits: Clinically proven to relieve allergy and asthma symptoms
Proper ventilation is essential for a healthy home environment. Clinical studies have shown that PIV systems like the Drimaster-Eco can significantly reduce allergy and asthma symptoms by maintaining drier, cleaner air and preventing the buildup of airborne irritants.

Eliminates Condensation Dampness
By continuously supplying fresh, filtered air, the system lowers indoor humidity levels, effectively preventing condensation on windows and walls. This reduces the risk of mould growth and damp-related damage, helping to maintain a healthier living environment.
- Lowers indoor humidity levels
- Continuously supplies fresh, filtered air
Quick and Simple Installation
The Drimaster-Eco is designed for fast, hassle-free installation, typically completed in under an hour by a qualified installer.
The process involves cutting a ceiling hole, securing the unit in the loft, connecting ducting, and wiring it to the mains.
Once fitted, it runs quietly in the background with no ongoing maintenance required.
- 7-year warranty

Discover the Nuaire Drimaster
Step-by-Step PIV Installation Guide
Frequently Asked Questions
How do I operate the unit?
During installation your unit will have been set to run continuously at a level that will adequately ventilate your home.
As house sizes and occupancy levels vary, your DRI-ECO-HC has 6 speed controls which can be adjusted to suit your home.
How much does this unit cost to run?
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 eg. during the summertime.
What maintenance is required?
To maintain the optimum performance of your DRI-ECO-HC the filter must be kept clean and clear.
The cleaning or replacement of the filters is required every 5 years.
Can I install this myself?
Installing the Drimaster involves cutting a hole in your ceiling, working in the loft space, securing ducting, and wiring the unit to the mains. An electrician or installer can do this safely and neatly in a few hours. Once fitted, it runs quietly in the background with no maintenance needed.
✅ Typical installation time: 1-2 hours
💷 Estimated cost: £150-£250 depending on your location and loft access.
Once installed, the unit runs quietly in the background and requires no ongoing maintenance apart from replacing filters every 5 years.
Anonymous (verified owner) –
An excellent product that does what it says. The fan has been fitted for a week now and the level of condensation upstairs has been all but eliminated. It was very easy to fit and set-up. I had a question about registering the product (not needed just need proof of purchase for the warranty) and the Nuaire helpline answered my call quickly and efficiently.
Robin Howell (verified owner) –
Easy to fit and does what it says.
Derek William Adams (verified owner) –
So far, so good. Installation was simple and well-covered by the instructions. Less good was the section on speed and temperature control. I think I ot it OK, but this really needs re-writing! Performance so far (a few days) is as promised.
Deborah Plewa (verified owner) –
I remembered a friend recommended this to me a lot of years ago, so when we experienced condensation problems on a corner of our North facing bungalow, I decided to do some research. The dehumidifier we used was only just helping slightly and the wall was getting wet in the corner. Installing was straightforward and the result was immediate. We woke up to bone dry windows. We have a two bedroom bungalow and only need unit on setting two. We notice that we experience less smell – cooking or otherwise as well, did not need the heater element. Delivery was super fast as well – Highly recommended.
Dino Manfredi (verified owner) –
Hi it arrived quickly and was easy to install only comment is re cut out cardboard template , it is too big for the unit and so had to fill gaps. Paper one ass ok tho
Dennis Wilson (verified owner) –
Great all up and running hopefully no more condensation Good company to deal with everythings as it should be thanks
Graham Titcombe (verified owner) –
Windows in my 200 year old Devon cob cottage were running with condensation every morning. Finished installation of the unit at 4pm and set fan speed at level three. The following morning, the windows were completely condensation free and I reduced fan speed to level two. Im so pleased with this magical piece of kit, Im sure it must have been made by Harry Potter.
Shirley Smith (verified owner) –
Ordering easy. Delivery rapid, fantastic. Ease of installation. Very good. Noise ..very quiet, and no draught. Overall….I am very pleased, and have already recommended it to others who have condensation problems.
Arthur Webb (verified owner) –
Seems a good quality build. Easily installed. Works as expected. Accessible controls.
Charan Sekhon (verified owner) –
Easy to install quiet operation plz make sure ur loft is properly vented or u need to install roof vents (you can just replace two roof tiles with vented tiles), only suggestion is company could have made hanging string bit stronger as it is quite bulky!
Peter Hart (verified owner) –
Ive fitted a lot of these and they work great.
Anonymous (verified owner) –
Condensation on our bedroom windows was very bad having to use towels in the mornings to wipe them off, i tried everything from trickle vents to condensation egg traps on the window cills a humidifier on the landing running most of the night that did help slightly but you had to put up with the background noise of the unit running, i put into google condensation cures yet again ! and the webpage for i-sells.co.uk came up with the Nuaire Drimaster after reading the reviews i took the plunge and purchased , the unit arrived within 3 days great delivery service , i fitted the unit on Friday took about 2hrs very easy with basic diy skills the template cut out for the ceiling is a great help finished about 4pm fitting the unit Saturday morning NO CONDENSATION not a drop unit is set to level 3 you cant hear the unit at all as the fan is suspended in the attic Thank you i -Sells ist class company in every aspect
Anonymous (verified owner) –
Condensation on our bedroom windows was very bad having to use towels in the mornings to wipe them off, i tried everything from trickle vents to condensation egg traps on the window cills a humidifier on the landing running most of the night that did help slightly but you had to put up with the background noise of the unit running, i put into google condensation cures yet again ! and the webpage for i-sells.co.uk came up with the Nuaire Drimaster after reading the reviews i took the plunge and purchased , the unit arrived within 3 days great delivery service , i fitted the unit on Friday took about 2hrs very easy with basic diy skills the template cut out for the ceiling is a great help finished about 4pm fitting the unit Saturday morning NO CONDENSATION not a drop unit is set to level 3 you cant hear the unit at all as the fan is suspended in the attic Thank you i -Sells ist class company in every aspect
Anonymous (verified owner) –
Condensation on our bedroom windows was very bad having to use towels in the mornings to wipe them off, i tried everything from trickle vents to condensation egg traps on the window cills a humidifier on the landing running most of the night that did help slightly but you had to put up with the background noise of the unit running, i put into google condensation cures yet again ! and the webpage for i-sells.co.uk came up with the Nuaire Drimaster after reading the reviews i took the plunge and purchased , the unit arrived within 3 days great delivery service , i fitted the unit on Friday took about 2hrs very easy with basic diy skills the template cut out for the ceiling is a great help finished about 4pm fitting the unit Saturday morning NO CONDENSATION not a drop unit is set to level 3 you cant hear the unit at all as the fan is suspended in the attic Thank you i -Sells ist class company in every aspect
Anonymous (verified owner) –
Moved into our bungalow in 1989 and found we got terrible condensation. After a couple of years trying various solutions without much success we heard about Nuaire and had one of these earlier models installed. A basic model with just 2 settings but for 25+ years the house virtually condensation free (only if I forgot to go into loft and put it on higher setting for winter) After all these trouble free years the fan started making noises and I switched it off.The condensation returned! Got a quote from Envirovent for installation of a similar unit for £1300! Fortunately then found this site and product. Just fitted it and so easy, especially as it just replaced the existing unit. Lighter than the earlier model and now with 5 settings that can be easily reached on the difusser on the hallway ceiling. Hershoping for another trouble free 25 years!
Shayne Riches (verified owner) –
Fantastic product. Easy to fit simple to operate.
Jackie Walton (verified owner) –
This item is extremely well built.wish is known about them earlier.very happy would highly recommend
Julian Wood (verified owner) –
Order received on time as promised . All ok thanks
Thomas Irving (verified owner) –
Hi, this is an excellent product and well worth the money the fitting is easy and took less than an hour. Okay the house was suffering from mould and condensation and although we had already had surveys for damp and condensation (they wanted over 1000 GBP to fix the problem) we opted to buy and install NUADRI-ECO-HC and used a qualified electrician to fit it. Since we’ve had it fitted the mould has gone and the condensation is no more . The air feels fresher you hear no noise from the unit you do get a slight draught only slightly noticeable it’s 5 Stars from us Great service and delivery from i-sells.co.uk
Veronica Goofellow (verified owner) –
This item is extremely good had no condensation on windows at all within 2 days of fittinglot very quiet on setting 2 for our bungalow doesnt affect room tempature