One of the most common residential plumbing system problems is the wait for hot water. Each year, the average home wastes thousands of gallons of water down the drain, waiting for hot water to reach the kitchen or bathroom faucets. Running water also wastes lots of energy used to heat and transport that water. Striving to avoid wasting hot water makes sense, as it takes 27 times more electricity to heat hot water than it does to move water, hot or cold, in the first place. One solution is the EcoDrain system, which transfers heat from hot shower waste water to cold incoming water, cutting water heater use for showers by 25% to 70%.
Read the entire article here: Capture Wasted Heat that Flows Down the Drain