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  2. Energy factor - Wikipedia

    en.wikipedia.org/wiki/Energy_factor

    The energy factor metric only applies to residential water heaters, which are currently defined by fuel, type, and input capacity. [5] Generally, the EF number represents the thermal efficiency of the water heater as a percentage, since it is an average of the ratio of the theoretical heat required to raise the temperature of water drawn to the amount of energy actually consumed by the water ...

  3. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Direct electric resistance tank water heaters are not included in the Energy Star program; however, the Energy Star program does include electric heat pump units with energy factors of 200% or higher. Tankless gas water heaters (as of 2015) must have an energy factor of 90% or higher for Energy Star qualification.

  4. Energy Star - Wikipedia

    en.wikipedia.org/wiki/Energy_Star

    For example, dehumidifiers that are rated under 25 US pints (12 L) per day of water extraction receive an Energy Star rating if they have an energy factor of 1.2 (higher is better), while those rated 25 US pints (12 L) to 35 US pints (17 L) per day receive an Energy Star rating for an energy factor of 1.4 or higher.

  5. Biden Energy Dept. deals another blow to natural gas supporters

    www.aol.com/news/biden-energy-dept-deals-another...

    (The Center Square) – It’s been a rough week for supporters of natural gas, with the Department of Energy issuing final rules that ban certain types of natural gas water heaters and DOE’s ...

  6. New Biden water heater ban will drive up energy prices for ...

    www.aol.com/biden-water-heater-ban-drive...

    A Biden administration ban on certain natural gas water heaters as part of the lame duck president’s climate agenda could send prices soaring for the elderly and the poor. Under the policy, new ...

  7. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    A hybrid water heater is a water heating system that integrates technology traits from both the tank-type water heaters and the tankless water heaters. [5] It maintains water pressure and consistent supply of hot water across multiple hot water applications, and like its tankless cousins, it is efficient and can supply a continuous flow of hot ...

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