4 ms·
I did the calculation, at that rate that investment will never pay off. Besides, I find it hard to believe compact heat exchangers can exchange meaningful amoun
by EVa5I7bHFq9mnYK 4y ago
I did the calculation, at that rate that investment will never pay off. Besides, I find it hard to believe compact heat exchangers can exchange meaningful amount of heat at 40 m3/hr flow rate.
- jaggederest 4y agoThey can't, but you don't run them constantly at a low rate. They cycle on and off to hit your targeted air exchange rate. That would be about a 50% duty cycle on low, so like 15 minutes on, 15 minutes off, constantly. They're definitely not "free", but they do return a lot of the heat you're using. 90% or so is pretty standard.
- EVa5I7bHFq9mnYK 4y agoI have one-direction air flow in the apartment, where inbound clean air enters at one side of apartment, and exhaust exists the other side. The scheme that you mentioned would take clean air and throw it back outside, doesn't make sense for me.
- scotty79 4y agoClean air exits your apartment anyways otherwise you couldn't pump in the fresh one. But pairing heat exchanger or pair of heat exchangers with your setup is probably not easy.