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2. 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 ...

3. Phase-out of fossil fuel boilers - Wikipedia

   en.wikipedia.org/wiki/Phase-out_of_fossil_fuel...

   Ban on new gas furnaces and water heaters. 2030 California Air Resources Board writing rules to implement. [6] Denmark Convert all 400,000 gas boilers to district heating and heat pumps 2029 Use obligation and duty for renewable energy France Oil and gas boilers banned in new buildings 2023 Germany Ban on coal and oil boilers in existing buildings

4. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive bunker fuel to run their heating plants, but capital cost is high compared to more easily managed liquid fuels. Natural gas is a widespread heating fuel in North America and northern Europe. Gas burners are automatically controlled and ...

5. Cost estimate - Wikipedia

   en.wikipedia.org/wiki/Cost_estimate

   A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

6. Natural gas prices - Wikipedia

   en.wikipedia.org/wiki/Natural_gas_prices

   A 2016 study assesses the expected poverty and distributional effects of a natural gas price reform – in the context of Armenia; it estimates that a significant tariff increase of about 40% contributed to an estimated 8% of households to substitute natural gas mainly with wood as their source of heating - and it also pushed an estimated 2.8% ...

7. Constellation buying Calpine in $26.6 billion deal that would ...

   www.aol.com/constellation-buying-calpine-26-6...

   Constellation is buying natural gas and geothermal power provider Calpine for $16.4 billion, joining together two of the country's biggest power companies. The acquisition would create the nation ...