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  2. Forced-air gas - Wikipedia

    en.wikipedia.org/wiki/Forced-air_gas

    Older furnaces sometimes relied on gravity instead of a blower to circulate air. [1]Gas-fired forced-air furnaces have a burner in the furnace fueled by natural gas.A blower forces cold air through a heat exchanger and then through duct-work that distributes the hot air through the building. [2]

  3. Forced-air - Wikipedia

    en.wikipedia.org/wiki/Forced-air

    Regardless of type, all air handlers consist of an air filter, blower, heat exchanger/element/coil, and various controls. Like any other kind of central heating system, thermostats are used to control forced air heating systems. Forced air heating is the type of central heating most commonly installed in North America. [1]

  4. Autogas - Wikipedia

    en.wikipedia.org/wiki/Autogas

    The cost to convert a vehicle to propane in Canada is approximately CA$4,000 to CA$6,000 for the current vapour or liquid fuel injected technology, and fleet users can expect a payback on the conversion cost within a year. Converting a vehicle to propane is approximately half the cost of converting a vehicle to natural gas in Canada.

  5. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    A component of an HVAC system that adds heat to air or an intermediate fluid by burning fuel (natural gas, oil, propane, butane, or other flammable substances) in a heat exchanger. gas furnace heat exchanger A gas furnace heat exchanger is responsible for the transfer of heat from inside the furnace into the air outside the furnace.

  6. Furnace (central heating) - Wikipedia

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

    At the furnace, cool air passes into the furnace, usually through an air filter, through the blower, then through the heat exchanger of the furnace, whence it is blown throughout the building. One major advantage of this type of system is that it also enables easy installation of central air conditioning , simply by adding a cooling coil at the ...

  7. What are the changes to the NCAA college football transfer ...

    www.aol.com/changes-ncaa-college-football...

    The NCAA college football transfer portal will open on Dec. 9 and close on Dec. 28. Here are the new change and how it works.

  8. Propane refrigeration - Wikipedia

    en.wikipedia.org/wiki/Propane_refrigeration

    Propane refrigeration is a type of compression refrigeration. Propane (R290) has been used successfully in industrial refrigeration for many years, and is emerging as an increasingly viable alternative for homes and businesses. Propane's operating pressures and temperatures are well suited for use in air conditioning equipment, but because of ...

  9. How Trump’s proposed tariffs could affect the cost of jeans ...

    www.aol.com/finance/trump-proposed-tariffs-could...

    How Trump’s proposed tariffs could affect the cost of jeans ...

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