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  2. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Hydronic heating systems are also used with antifreeze solutions in ice and snow melt systems for walkways, parking lots and streets. They are more commonly used in commercial and whole house radiant floor heat projects, whereas electric radiant heat systems are more commonly used in smaller "spot warming" applications.

  3. Heating system - Wikipedia

    en.wikipedia.org/wiki/Heating_system

    Heating systems are classified into two main types; central heating and distributed heating. Central heating systems generate heat (electrically or by burning gas/coal) in a single location and distribute the heat through ducts pipes or radiators. Distributed heating systems involve localized heat sources, such as space heaters or electric ...

  4. Furnace (central heating) - Wikipedia

    en.wikipedia.org/wiki/Furnace_(central_heating)

    In some areas electrical resistance heating is used, especially where the cost of electricity is low or the primary purpose is for air conditioning. Modern high-efficiency furnaces can be up to 98% efficient and operate without a chimney, with a typical gas furnace being about 80% efficient. [ 1 ]

  5. The Best Portable Heaters Will Warm Any Room of the House - AOL

    www.aol.com/lifestyle/warm-room-house-best...

    The Vornado MVH Vortex Heater offers 1500 watts of heating power to raise the temperature in your room to comfortable levels. It works by using its signature Vortex heat circulation to evenly and ...

  6. Rheem Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Rheem_Manufacturing_Company

    In North America, Rheem and Ruud both manufacture and sell a full line of heating and cooling products for residential and commercial applications, including up to 98.7% annual fuel use efficiency gas furnaces, oil-fired furnaces, up to 20 SEER air conditioners, heat pumps, thermostats, air handlers, package units, and indoor air quality ...

  7. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Electrical heaters are often used as backup or supplemental heat for heat pump systems. The heat pump gained popularity in the 1950s in Japan and the United States. [ 14 ] Heat pumps can extract heat from various sources , such as environmental air, exhaust air from a building, or from the ground.

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