– DRI-ECO-HEAT-HCS Nuaire Drimaster Heated PIV with Hall Controls

Good price! Working well a year on. Easy enough to fit but take your time. Use a plasterboard saw for the cut. If you don't have one, buy one as you'll want the cut to be accurate as possible - not too big or you're stuffed ( cardboard template included) The job is 'basically' a hole in the ceiling with a big pipe attached and a fan hanging off the beams. It's doable by anyone, but you need to be motivated to do it and take your time. Have a friend help you locate a good spot on the landing (check for electrics first in loft) then identify a safe drill location by tapping the ceiling (check and double check) and then put a single hole in ceiling. If you're missing beams and have clear cut area, there's your centre hole. I installed this to prevent mould / mustyness. Also we had soaking windows in the morning. It's not a miracle cure to this, I would say it's reduced it to 70-75% but this is a massive improvement if you've got a house that suffers from condensation. We also run a couple of eco air dehumidifiers which do still remove some water from the air. 3 bed- 2 kids. This in itself makes your house smell less stagnant on those damp mornings/ evenings. Nothing nasty but 'you know your own house' and sometimes it can feel a bit 'humid and close' and you end up opening windows to let some fresh air in...This item will give you the sensation that there's always fresh air incoming and less urge to need to vent the house. It's like having a window open all the time allowing fresh air, but without losing heat out your windows. It will help you hear your home too, in winter as the less humid the air is the warmer the home. It CAN be cold in winter on our landing and the heater element just takes the edge off the air, it still feels cold though. But quite frankly, I will tolerate this any day compared to absolutely soaking windows - moulding blinds - fusty smells - walls moulding behind furniture. It's 100% worth doing and if you have any issues I've mentioned, buy one.

Installed it myself in a couple of hours and running it off a 3 amp plug controlled by a wireless plug socket. It is showing 8/9 watts when running on speed 4. The heater hasn’t kicked in yet so cooler air will be expelled, upstairs should be cooler for sleeping and will keep the warmer air downstairs so family may find it cooler than usual upstairs. Heater will be expensive to run through a cold winter unless you can run it off cheap rate as will be around 10kW if on 24/7 so that’s around £3/day at the current price cap but it does provide some heat and not likely to be on all the time. The heater can be set between 5c-15c so has to be pretty cold outside to be 5c in the loft. I will monitor over winter to see actual running costs with heater set at 10c. Well insulated 4 bed detached and currently 12c outside and 19.2c on landing below the fan and 20c in the living room so seems to keep the warmer air downstairs, heating hasn’t been on but made a roast dinner so oven on for a while Min temp was 17.9c this morning on the landing (12.5c outside and 18.8c downstairs) and recommended temp for good sleep is around 18c so ideal and usually have bedroom doors shut at night so will prevent and cold draughts. Seems a good investment and did have some slight mould spots in bathroom ceiling and around bedroom windows so will monitor and leave on 24/7, only been installed 2 days and might try fan speed 3 to reduce amount of cool air if it gets colder outside. Overall a simple solution and think it works well with modern houses that can suffer with not much air flow and the filter should help with hay fever next year.

Absolutely fantastic, it has cleared up any condensation we used to get on the inside of the windows. We used to use the one without the heater on, but this one with the heater on is fantastic for you to keep your household at the perfect temperature. I highly recommend this unit it’s very good. ⭐️⭐️⭐️⭐️⭐️

Bought this after doing some research in condensation and the effects that it has on older houses (ours built in 1950’s). Unit delivered day after ordering and quickly installed by electrician although other posts have said anyone with a bit of diy knowledge can do it. So far, no condensation on windows and the humidity monitors are showing a significant reduction. Got to admit it’s a bit fresher upstairs than previously, but as it seems to be working I can put up with that. Overall quite pleased. Bit concerned that a red light was showing, checked on internet could be a few things to do with filters, electrician called out - just the control panel showing level of operation, no problems. Still working well after a few weeks, no condensation at all - well pleased Edit - been installed for some time now, we do not get any condensation on windows or black mouldy patches as we have had previously. Not sure if the PIV can take all the credit as we moved tumble dryer to outhouse as well as buying heated clothes airer, so we don’t dry clothes in house anymore. Nevertheless without the PIV I’m sure that we would still have condensation on windows every morning. All in all, still very happy with our purchase.

This device has completely cured damp and mould in my 4 bed house. I was hesitant about the claims made of it, but its amazing and transformative. I was also worried about potential noise, but its reasoably quiet. Incoming air can feel a bit chilly, you can reduce flow and up the heating element to mitigate somewhat, and for me the trade off is removal of damp and mould so well worth having. Its expensive for what is basically a fan with a motor attached, but the design and quality of build, installation instructions and appearance are very good indeed.