What is the RenewAire core made of?
The RenewAire core is a carefully designed, highly engineered resin composite material, developed over thirty years ago specifically for energy-recovery ventilation systems. It resembles corrugated paper, but it really isn’t – any more than the high-tech tires on modern cars resemble the rubber in pencil erasers. The RenewAire material has been imitated, but its optimized balance of high heat transfer, moderate moisture transfer, and low gas transfer rates has never been reproduced. RenewAire’s hydroscopic resins act as highly selective molecular “conveyer belts” or “water pipes”, that carry water vapor as individual molecules from one side of each heat transfer membrane to the other. Very low numbers of extraneous molecules are carried across the membrane. Another way to think of how RenewAire works is as a special type of window material. Glass in a window lets both light and heat enter your home, while keeping out dirt and outside air. The material in RenewAire lets through heat and
