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2. Fireplace insert - Wikipedia

   en.wikipedia.org/wiki/Fireplace_insert

   A fireplace insert is a device that can be inserted into an existing masonry or prefabricated wood fireplace. Fireplace inserts can be fuelled by gas, wood, electricity, coal, or wood pallet. Most fireplace inserts are made from cast iron or steel. Fresh air enters through vents below the insert, where it then circulates around the main chamber ...

3. 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 ...

4. 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 .

5. 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 ...

6. Furnace (central heating) - Wikipedia

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

   Diagram of natural draft gas furnace, early 20th century. The first category of furnaces is natural draft, atmospheric burner furnaces. These furnaces consisted of cast-iron or riveted-steel heat exchangers built within an outer shell of brick, masonry, or steel. The heat exchangers were vented through brick or masonry chimneys.

7. Gas burner - Wikipedia

   en.wikipedia.org/wiki/Gas_burner

   Chemistry laboratories use natural-gas fueled Bunsen burners. In domestic and commercial settings gas burners are commonly used in gas stoves and cooktops. For melting metals with melting points of up to 1100 °C (such as copper, silver, and gold), a propane burner with a natural drag of air can be used. For higher temperatures, acetylene is ...