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Power-Pipe Heat Exchanger Reduces Water Heating Costs by 40%

Word on the street is, the Power-Pipe Drain Water Heat Recovery (DWHR) System created by RenewABILITY Energy could reduce your water heating costs by as much as 40%. By recapturing significant amounts of the heat that is lost with the used hot water, you could see a significant reduction in your bills.

The system is designed to use the outgoing hot water in the drain pipes to preheat the cold water that is headed into the water heater, raising the incoming water temperature as high as 75°F, greatly reducing the energy needed to heat the water.

“Water falling down a vertical drain stack does not run down the middle of the stack, but instead clings to the inside wall of the pipe. In a DWHR application, falling drain water forms a thin film that rapidly imparts its heat to the colder pipe wall. The Power-Pipe® captures much of this heat, then ‘recycles’ it to raise the temperature of incoming cold water.”

Source: TreeHugger
Image Credits: RenewAbilityEnergy

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Written By

James Ayre's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy.


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