The cost-effective Power-Pipe Drain Water Heat Recovery unit reclaims heat that would otherwise be lost down the drain. This copper product from Renewability Energy has numerous residential and commercial applications and can be ordered in 2-, 3-, and 4-inch diameters and a wide range of lengths in order to maximize heat recovery efficiency for the available space. This double-wall, vented heat exchanger system can be used to supply fresh, pre-heated water to the water heater. The Power-Pipe is available through HomeDepot.com and is backed by a 10-year warranty.
PB Topical Ref
