How does Drain Water Heat Recovery Work?
Drain water heat recovery technology works well with all types of water heaters. Drain-water heat exchangers can recover heat from the hot water used in showers, bathtubs, sinks, dishwashers, and clothes washers.
Water enters the home between 5-12ºC and is heated to 50ºC in the hot water tank. Showerhead temperature is approximately 41ºC and this water is flushed down the drain at 37ºC.
This energy can be brought back into your home to substantially reduce hot water heating costs. The drain waste heat exchanger will heat water coming into your home by 12ºC using the energy from water being flushed down the drain.