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2. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Primary energy sources may be fuels like coal or wood, oil, kerosene, natural gas, or electricity. Compared with systems such as fireplaces and wood stoves, a central heating plant offers improved uniformity of temperature control over a building, usually including automatic control of the furnace.

3. 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 ...

4. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Such a system contains a boiler, furnace, or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building. The heat can be transferred by convection, conduction, or radiation. Space heaters are used to heat single rooms and only consist of a single unit.

5. Fixing Germany's economy is a critical task for the country's ...

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   Geissdoerfer said EBM-Papst’s heating technology division lost 18.7% of its sales through a clumsily handled push to get property owners to replace gas furnaces with less polluting electric heat pumps.

6. Gas prices: ‘It’s not impossible’ the national average ...

   www.aol.com/finance/gas-prices-not-impossible...

   Gas prices have been steadily falling for 13 straight weeks, eclipsing the declining streak the U.S. saw at the onset of the COVID-19 pandemic.. According to AAA, the average national gas price is ...

7. Industrial furnace - Wikipedia

   en.wikipedia.org/wiki/Industrial_furnace

   The residual heat will exit the furnace as flue gas. [1] These are designed as per international codes and standards the most common of which are ISO 13705 (Petroleum and natural gas industries — Fired heaters for general refinery service) / American Petroleum Institute (API) Standard 560 (Fired Heater for General Refinery Service).