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Jul 18, 2012 · Though condensing type boilers can achieve very high energy efficiencies, the approach temperature difference for the heat exchangers results in a reduction in efficiency of approximately 5% to 12% when generating domestic hot water, depending upon the heat exchanger type used (based upon 2 to 5 F approach with a 40 F ΔT for boiler water).

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ENERGY STAR Certified Boilers | EPA ENERGY STAR

Apr 12, 2020 · How to Save Energy When Using Water Heaters. Purchase a Tankless Water Heater. This may sound a little drastic, but if your family uses a lot of water, consider going tankless. Tankless hot water heaters are also called 'On Demand' hot water heaters. No water is stored, as it is in a conventional tank, so no water needs to be consistently

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Georgia State Energy Efficiency Appliance Rebate Program

Water Heater Gas Condensing Center Air Conditioners Oil Furnaces Water Heater Electric Heat Pump Water Heater Gas Tankless Water Heater Solar (electric back-up) Water Heater Solar (gas back-up) Air Source Heat Pumps Gas Furnaces Oil Burners Gas Boilers Modified Energy Factor (MEF) > or = 1.8 • Water Factor (WF) < or = 7.5 Modified Energy

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7 Best Combi Boilers and Water Heater Reviews in 2021

Jul 06, 2021 · Worry not, because, after extensive research, I have compiled a list of the best combi boilers in the market in this article for you. Contents show. 1 Our 7 Top Combi Boilers and Water Heaters Review. 1.1 1. Noritz CB199-DV-NG Combi Boiler. 1.2 2. Heatline By Vaillant Capriz Combi Boiler. 1.3 3.

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Home Energy Rebate Program HVAC and Water Heating …

exceed 140°F. Note that high-efficiency condensing boilers will provide the rated efficiency return only if return water is cold enough to condense the flue gases. If the heating system cannot meet the requirement, a non-condensing boiler may be a better choice.

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