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How do heat recovery systems work?

Started by Zarostulus, November 24, 2015, 08:06:54 PM

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Zarostulus

I've not really heard of heat recovery systems. I think the name is pretty self-explanatory, but how exactly do they work?

LucidEnergy

Well, the system itself tries to reduce heat loss with ventilation. Ventilation is essential, but by bring fresh air into the house/office you will be bringing cold air in, and expelling warm air from inside.

Heating recovery systems try to heat up the incoming fresh air with heat from the outgoing air.

St Rhenium

That's an interesting concept, but how does it work?