croftygair Posted January 24, 2011 Report Share Posted January 24, 2011 Hi does anyone have a heat recovery ventilation system installed that actually works? I've heard a few stories of people turning there ones off because it does't work. (***Mod Edit - Moved to Consumer Advice & Resources***) Link to comment Share on other sites More sharing options...
Njugle Posted January 25, 2011 Report Share Posted January 25, 2011 Many of the new Hjaltland houses have systems of this type installed. That's not really the answer you are after, but Hjaltland would seem to be convinced that there is merit in the expense of fitting them. There does seem to be a lot of variation in cost, technology and effectiveness. The better systems do claim very cheap running costs, but how much benefit you gain from them I'm not entirely sure (and am also keen to find out, particularly when retro-fitted to an older house). Link to comment Share on other sites More sharing options...
Lastditch Posted January 25, 2011 Report Share Posted January 25, 2011 http://www.instructables.com/id/Almost-Free-Solar-Hot-Air-Collector/ Never tried and know nothing about the subject but took my interest a few months ago. Link to comment Share on other sites More sharing options...
croftygair Posted January 25, 2011 Author Report Share Posted January 25, 2011 yeah I think Hjaltland have had the same ones installed which a couple of people i know have had to turn them off and block up all the holes due to the air condensating in the ducting and then dripping out into the rooms which is obviously a complete waste of money. How ever it then asks the question who designed the system and sold it to them. Did they know it wouldn't work and just took the money? hmm. Anyway my new build is going to be very air tight due to construction and insulation and I feel I need to pump some fresh air into the house. Does anyone know of any systems which work? Link to comment Share on other sites More sharing options...
breeksy Posted January 26, 2011 Report Share Posted January 26, 2011 I'm in a Hjaltland house and mine works fine - the only people I have heard of whose have not worked are those who have boxed in the pipework as soon as they have moved in, which we were advised not to do. Link to comment Share on other sites More sharing options...
Njugle Posted January 27, 2011 Report Share Posted January 27, 2011 Croftygair, the latest ones that Hjaltland fit have insulated ducting, which prevent any condensation in the pipes. Have a look at Titon HRV systems. Link to comment Share on other sites More sharing options...
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