Drain Water Heat Recovery Efficiency

Without storage capacity you ll only have useful energy during the simultaneous flow of cold water and heated drain water like while showering.

Drain water heat recovery efficiency.

Drain water heat recovery saves energy simple systems have speedy payback 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. Extend the life of your water heater since the cold water entering your water heater is pre heated by the drain water. Flexibility a drain water heat recovery system. Benefits energy savings a typical drain water heat recovery system can reduce your water heater s energy consumption by up to 25.

You ll need a unit with storage capacity for use with a dishwasher or clothes washer. A significant portion of the heat from the drainwater is. The well known international focus on energy sustainability and the impact of climate change has. Drain water heat recovery to qualify as a drain water heat recovery system for use for compliance with applicable performance compliance credits the heat exchanging unit shall be certified to the energy commission according to the requirements contained in ra3 6 9 using the following declaration statement.

Drain water heat exchangers can recover heat from the hot water used in showers bathtubs sinks dishwashers and clothes washers. By transferring some of the heat from the drain water to the incoming water through a heat exchanger reduced energy is required.