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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. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Residential combustion water heaters manufactured since 2003 in the United States have been redesigned to resist ignition of flammable vapors and incorporate a thermal cutoff switch, per ANSI Z21.10.1. The first feature attempts to prevent vapors from flammable liquids and gases in the vicinity of the heater from being ignited and thus causing ...

  4. Boiler - Wikipedia

    en.wikipedia.org/wiki/Boiler

    Wrought iron boilers corrode far more slowly than their modern-day steel counterparts, and are less susceptible to localized pitting and stress-corrosion. That makes the longevity of older wrought-iron boilers far superior to that of welded steel boilers. [citation needed] Cast iron may be used for the heating vessel of domestic water heaters ...

  5. Category:Residential heating appliances - Wikipedia

    en.wikipedia.org/wiki/Category:Residential...

    Pages in category "Residential heating appliances" The following 45 pages are in this category, out of 45 total. ... Storage water heater; T. Towel warmer; W.

  6. 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 ...

  7. What’s That Winter Air Burn In My Lungs? - AOL

    www.aol.com/winter-air-burn-lungs-143826164.html

    A slow drink of warm water may help relieve pain associated with the burning sensation in the lungs. If you have asthma, experts encourage you to try to spend time outside if you can, but to be ...

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