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  2. Condensing boiler - Wikipedia

    en.wikipedia.org/wiki/Condensing_boiler

    Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.

  3. Aquastat - Wikipedia

    en.wikipedia.org/wiki/Aquastat

    [1] [2] To prevent the boiler from firing too frequently, aquastats have a high limit temperature and a low limit. If the thermostat is calling for heat, the boiler will fire until the high limit is reached, then shut off (even if the thermostat is still calling for heat). The boiler will re-fire if the boiler water temperature drops below a ...

  4. Best temperature for heat? What to set your thermostat to - AOL

    www.aol.com/best-temperature-heat-set-thermostat...

    When should you turn on the heat? What is the right temperature setting? Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 ...

  5. Boiler - Wikipedia

    en.wikipedia.org/wiki/Boiler

    A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, [1] [page needed] [2] [page needed] including water heating, central heating, boiler-based power generation, cooking, and sanitation.

  6. Best temperature setting for thermostats this winter? The ...

    www.aol.com/best-temperature-setting-thermostats...

    The Energy Department has tips on the most efficient temperature range for homes in the winter months.

  7. What's the best temperature to set your thermostat in the ...

    www.aol.com/whats-best-temperature-set...

    While this is ultimately a personal choice, most experts recommend turning on the heat in your home when the outside temperature is less than 55 or 50 degrees, or when the indoor temperature dips ...

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