Crofter Posted December 2, 2016 Share Posted December 2, 2016 Starting to shop around for my MVHR system, to serve my little 43m2 one bedroom cottage. I did get a quote from BPC who were very good to deal with but their system was based around a unit suitable for houses up to 150m2, and whilst overcapacity may be no bad thing, perhaps I can shave a bit of money off the total cost by shopping around a bit. In an ideal world I would have a unit sized appropriate to my house and with summer bypass and high efficiency. Humidistat control might be nice as I would like this to be able to run without any human intervention if possible. I have also seen some units featuring a heating boost which is certainly interesting as a house as small as mine might just get away with being heated in this manner, but I would need to research this and compare the added cost to just sticking in some panel heaters. There are some smaller and cheaper units around but from what I have found so far these are lower efficiency (c.70%- I wonder how much this matters in real life) and mostly designed for single room applications (despite having enough overall capacity for my whole house). Any tips/pointers? Link to comment Share on other sites More sharing options...
Guest Alphonsox Posted December 2, 2016 Share Posted December 2, 2016 I went through the same search a year or so ago - At that point the choices were small and inefficient or too big. It sounds like things may not have changed. Link to comment Share on other sites More sharing options...
joe90 Posted December 2, 2016 Share Posted December 2, 2016 How about this:- http://www.ebay.co.uk/itm/Heat-Recovery-Ventilation-Fan-Unit-MVHR-Condensation-Mould-Control-System-/181102408676?hash=item2a2a8b73e4:g:yMMAAOSwxCxT7kmE for a flat or small house! Link to comment Share on other sites More sharing options...
Guest Alphonsox Posted December 2, 2016 Share Posted December 2, 2016 That fits into the "small and inefficient" group. (68% efficient). There does seem to be a gap in the market for a MVHR capable of 90%+ efficiency for 50-100m2 dwellings. Link to comment Share on other sites More sharing options...
Crofter Posted December 2, 2016 Author Share Posted December 2, 2016 Yes, the smaller units tend to be less efficient and also lack the more advanced features (e.g. summer bypass). I'm quite interested in the Boulder units- anybody on the forum have experience of these? Link to comment Share on other sites More sharing options...
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