Two Energy-Efficient Ways to Get Hot Water Fastercomments (21) February 16th, 2009 in Blogs
by Scott Gibson
Equipped with both an adjustable timer and an aquastat that monitors water temperature, this type of recirculation system pumps hot water into the supply loop at designated times of day.
• Reduces wasted water and eliminates the wait for hot water.
• Adjustable to specific hot-water needs of the household.
• Override function allows system to be charged with hot water at any time.
• An overused system can increase net energy use significantly.
• When plumbed as a retrofit at the faucet farthest from the water heater, system may warm cold-water lines.
This type of system uses a pump to operate only when someone wants hot water. The pump can be activated manually, or automatically by a motion detector.
• Reduces wasted water and the wait for hot water.
• When used properly, can reduce net energy use.
• Retrofit system has less significant crossover of hot water into coldwater lines.
• It’s not always instant. There still can be a wait for hot water after the pump has been activated; length of time depends on plumbing configuration.
• Retrofits require a pump and a power source at the end of each hot-water loop.
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Hot Water Now
Recirculation systems eliminate a long wait at the tap and save thousands of gallons of water
by Scott Gibson
posted in: Blogs, green building, kitchen, plumbing
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