Comment by 0wis

Interesting subject tackling two important home issues at the same time : ventilation and heat exchange. It seems like a way to get the best of both worlds. However, I do not know why this forum is relevant or interesting. DIY solutions are easily doable but is it really surprising ? I am sure people have done this with old fridge parts, as someone suggest in the last post. Yes, DIY can be cheaper but reliability is key for such systems. Size can also be key.