Simple systems have speedy payback.
Drain water heat recovery system.
Water heating accounts for approximately 20 to 30 percent of household energy demand.
Savings expected is 35 roi is 2 5 years.
High maintenance heat exchangers with filtration systems have been used for heat recovery in laundry systems.
How it works multi family applications.
Drain water heat recovery systems have an extremely long product life 30 plus years so it may still be beneficial to install the technology right now if there will be more occupants showering in the future.
The power pipe can dramatically cut water heating costs and reduce total home energy consumption by 5 10.
In a gravity film heat exchanger gfx drain water flows through a copper pipe that is wrapped in smaller diameter copper tubing.
They generally have the ability to store recovered heat for later use.
Drain water heat exchangers can recover heat from the hot water used in showers bathtubs sinks dishwashers and clothes washers.
The thermodrain does not require maintenance and solids can flow freely through the thermodrain without the risk of blockage.
If you are building a new home installing a drain water heat recovery system during the building process rather than after the fact.
Laundry savings scenario using drain water heat recovery.
This is a simple diagram of how a drain water heat recovery system works diagram courtesy of ecodrain.
The power pipe drain water heat recovery system is an effective way to reduce water heating costs by 20 to 40 and continue saving throughout the entire building lifecycle.
At 20 30 of home energy consumption water heating is typically the 2nd highest energy demand.
Drain water heat recovery systems capture the heat from water going down a drain typically the shower and use it to heat cold water entering your water heater.
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 technology works well with all types of water heaters especially with demand and solar water heaters.