/diy/ - Do It Yourself

>>2750974
They are supposed to save heat/cooling when ventilating your building. An "energy recovery ventilator" would be better in my Dfa/Dfb climate, because it would also save on de/humidification costs. I'm considering printing ABS, maybe "low odor" is still too much, but if I vent it outside I have to replace heat. The other option is a UV/TiO2 filter.
>>2750981
For air-air they typically get 10-100W/m2.K overall. A single layer of plastic is 570W/m2.K. Foil or paper layers will only allow reducing the area by a bit. But I'll get twice the m2 per m3, reduced leakage and maybe manual assembly isn't too hard, especially if I only sell the plans.