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2. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   A cheaper alternative to hot water or steam heat is forced hot air. A furnace burns fuel oil or gas, which heats air in a heat exchanger , and blower fans circulate the warmed air through a network of ducts to the rooms in the building.

3. Propane - Wikipedia

   en.wikipedia.org/wiki/Propane

   As of December 2015, the propane retail cost was approximately $1.97 per gallon, [62] which meant filling a 500-gallon propane tank to 80% capacity costed $788, a 16.9% decrease or $160 less from November 2013. Similar regional differences in prices are present with the December 2015 EIA figure for the East Coast at $2.67 per gallon and the ...

4. Liquefied petroleum gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_petroleum_gas

   LPG cylinders in India Liquefied petroleum gas tank on a rural farm. Predominantly in Europe and rural parts of many countries, LPG can provide an alternative to electric heating, heating oil, or kerosene. LPG is most often used in areas that do not have direct access to piped natural gas. In the UK about 200,000 households use LPG for heating.

5. Calor Gas - Wikipedia

   en.wikipedia.org/wiki/Calor_Gas

   Calor originally dealt only with cooking and heating appliances, but now covers a wider range of products for home, business, and automotive fuels. Such was the company's ubiquity at one point that the term "Calor Gas" became a generic term in the UK for all bottled LPG canisters and LPG-fuelled appliances.

6. Gas stove - Wikipedia

   en.wikipedia.org/wiki/Gas_stove

   Many stoves use natural gas to provide heat. A gas stove is a stove that is fuelled by flammable gas such as natural gas, propane, butane, liquefied petroleum gas or syngas. Before the advent of gas, cooking stoves relied on solid fuels, such as coal or wood. The first gas stoves were developed in the 1820s and a gas stove factory was ...

7. Liquefied natural gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_natural_gas

   The heating value depends on the source of gas that is used and the process that is used to liquefy the gas. The range of heating value can span ±10 to 15 percent. A typical value of the higher heating value of LNG is approximately 50 MJ/kg or 21,500 BTU/lb. [2] A typical value of the lower heating value of LNG is 45 MJ/kg or 19,350 BTU/lb.