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  2. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    Upright non-flued liquefied petroleum gas heater, 1970s A wall mounted gas heater that runs on either propane or natural gas. 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 ...

  3. Gasoline heater - Wikipedia

    en.wikipedia.org/wiki/Gasoline_heater

    Gasoline heaters require an intake source of fresh air, and exhaust combusted gasses. Due to the toxicity of the latter - carbon monoxide in particular - it is crucial to prevent spent gasses from entering a vehicle's interior. Other combustion byproducts include soot, sulfur dioxide, carbon dioxide, and some carbon monoxide.

  4. Furnace (central heating) - Wikipedia

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

    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 compared to a mid-efficiency forced-air or forced-draft furnace, is the capture of latent heat from the exhaust gases in the secondary heat exchanger.

  5. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Electric heating or resistance heating converts electricity directly to heat. Electric heat is often more expensive than heat produced by combustion appliances like natural gas, propane, and oil. Electric resistance heat can be provided by baseboard heaters, space heaters, radiant heaters, furnaces, wall heaters, or thermal storage systems.

  6. NFL Week 15 bold predictions: Which players and teams will ...

    www.aol.com/nfl-week-15-bold-predictions...

    NFL Week 15 features an exciting schedule, with several playoff contenders squaring off against one another. Here are our bold predictions.

  7. Are Elephants Really Afraid of Mice? An Elephant Expert ...

    www.aol.com/elephants-really-afraid-mice...

    Another show did their own experiment to see if elephants were indeed afraid of mice. On 20/20, the host contacted the Ringling Bros. and Barnum & Bailey Circus.The elephant trainer, Troy Metzler ...

  8. Feds find Worcester, Massachusetts police used force, had ...

    www.aol.com/feds-worcester-massachusetts-police...

    Investigators said they had “serious concerns” about “credible reports of sexual assault and other sexual misconduct" by the officers.

  9. Catalytic heater - Wikipedia

    en.wikipedia.org/wiki/Catalytic_heater

    The catalytic heater is contained within the package which is usually made out of stainless-steel. Instrument gas and pilot preheating regulators are only used for freeze protection, and to heat up the gas before it reaches the pilot. It can also be used to heat a stream of gas that's used for measurement or instrumentation. Space heating is a ...