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2. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Later in the 20th century, these were updated to burn fuel oil or gas, eliminating the need for a large coal storage bin near the boiler and the need to remove and discard coal ashes. A cheaper alternative to hot water or steam heat is forced hot air.

3. Condensing boiler - Wikipedia

   en.wikipedia.org/wiki/Condensing_boiler

   Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.

4. 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 ...

5. NYC landlord switching to dirtier heating oil because of ...

   www.aol.com/news/nyc-landlord-switching-dirtier...

   His total gas bill for the building from Oct. 23 to Nov. 25 was $601.23. The bill broke down to $451.78 for gas delivery and $149.45 for the gas supply. He also got zapped with a $200 late fee ...

6. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Natural gas heaters are most popular in the US and most European countries, since the gas is often conveniently piped throughout cities and towns and currently is the cheapest to use. In the United States, typical natural gas water heaters for households without unusual needs are 150–190 L (40–50 US gal) with a burner rated at 10.0–11.7 ...

7. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   However lifetime cost relative to a gas boiler varies considerably depending on several factors, such as the quality of the heat pump installation and the tariff used. [105] In 2024 England was criticised for still allowing new homes to be built with gas boilers, unlike some other counties where this is banned. [106]