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  2. Unplug These Appliances That Hike Up Your Electricity Bill - AOL

    www.aol.com/finance/unplug-appliances-hike...

    Hot Water Recirculation Pump. Average Wattage: 28-92 watts. Cost per Year: $28-$93. ... Take a Look Back: 2022 Year in Review. The 10 Best Cash Back Credit Cards for 2023.

  3. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    The traditional hot water recirculation system uses the existing cold water line as return line from the point of use located farthest from the hot water tank back to the hot water tank. The first of two system types has a pump mounted at the hot water heater while a "normally open" thermostatic control valve gets installed at the farthest ...

  4. Water recycling shower - Wikipedia

    en.wikipedia.org/wiki/Water_recycling_shower

    External hot water is used to maintain temperature, with incoming hot water replacing the used water within the loop. In addition to replacement, water within the loop is filtered and purified with UV light. [11] For users unable or unwilling to use the recycling mode, the e-Shower offers a classic shower where all the water is drained. [12]

  5. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    On-demand recirculating pumps are activated by push-button or other sensor. A water contacting temperature probe installed at the hot water usage point signals the pump to stop. Single-cycle pumping events only occur when hot water is needed, thereby preventing the energy waste associated with constantly heating water within piping.

  6. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Early hot water systems were used in Ancient Rome for heating the Thermæ. [13] Another early hot water system was developed in Russia for central heating of the Summer Palace (1710–1714) of Peter the Great in Saint Petersburg. Slightly later, in 1716, came the first use of water in Sweden to distribute heating in buildings.

  7. Here's How Much Every State Will Spend Per Child This ... - AOL

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    Here's My Honest Review. 14 Stores That Are Open on Christmas Day (Plus 9 That Are Closed) Show comments. Advertisement. Advertisement. Holiday Shopping Guides. See all. AOL.

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