Drain Water Heat Recovery System

The energy department estimates that energy losses in hot water amount to 80 to 90 a good argument for installing a drain water heat recovery dhr system.

Drain water heat recovery system.

They generally have the ability to store recovered heat for later use. In a gravity film heat exchanger gfx drain water flows through a copper pipe that is wrapped in smaller diameter copper tubing. This is achieved by a variety of systems called drain water heat recovery dwhr. You ll need a unit with storage capacity for use with a dishwasher or clothes washer.

Without storage capacity you ll only have useful energy during the simultaneous flow of cold water and heated drain water like while showering. Heat from the drain water is transferred to incoming water. This process can be used for your home apartment condo business or many industrial processes using heated water. Drain water heat exchangers can recover heat from the hot water used in showers bathtubs sinks dishwashers and clothes washers.

It works by using outgoing warm drain water to pre heat incoming cold fresh water so your water heater doesn t have to work as hard. Drain water heat recovery is the process of recovering part of this valuable energy from the warm water and using it to preheat your incoming cold fresh water.