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  2. Fireplace insert - Wikipedia

    en.wikipedia.org/wiki/Fireplace_insert

    Using an EPA certified fireplace insert can improve heating efficiency by up to 50% while using less wood fuel, reduce creosote build-up in the chimney and lower smoke pollution inside and outside the home. [3] Fireplace inserts are categorized primarily by the type of fuel used (natural gas, propane, EPA-certified wood heaters, pellet, coal or ...

  3. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Propane, butane, and methane are all flammable gases used in fireplaces (natural gas is mostly methane, liquefied petroleum gas mostly propane). If they are allowed to accumulate unburned, gases can cause asphyxia by displacing air, [16] and gas explosions. [citation needed] Ethanol (a liquid, also sold in gels) fires can also cause severe ...

  4. Direct vent fireplace - Wikipedia

    en.wikipedia.org/wiki/Direct_vent_fireplace

    The first key component within the outer housing is the firebox, which is surrounded on five sides by the outer housing, and on one side by the glass panel that faces towards the room. This is the space in which the fire burns during operation. Because of this, the gas burners (either natural gas or propane) are located inside of the firebox ...

  5. The 11 Best Gas Patio Heaters for Outdoor Entertaining - AOL

    www.aol.com/9-best-gas-patio-heaters-191700923.html

    Patio heaters are electric, natural gas, or propane-powered. In terms of cost, efficiency, and portability, propane is the clear winner for fueling patio heaters.

  6. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or non-flued, or vented and unvented .

  7. Furnace (central heating) - Wikipedia

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

    The fourth category of furnace is the high-efficiency condensing gas furnace. High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as ...

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