Why doesn RenewAire need a condensate drain?
RenewAire is different from many other air-to-air heat exchangers because it is designed to transfer both heat and moisture from one air stream to the other. This very special feature eliminates condensation under almost all conditions. For example, in typical winter weather, the warm, relatively moist household air transfers most of its heat to the incoming air stream as it passes through RenewAire’s core. It also transfers just enough of its moisture to the incoming air to avoid condensing. This moisture is in the gas state so the inside of the RenewAire stays dry, unlike most other products that collect the moisture as liquid water and must drain it away.