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2. Furnace (central heating) - Wikipedia

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

   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 compared to a mid-efficiency forced-air or forced-draft furnace, is the ...

3. Annual fuel utilization efficiency - Wikipedia

   en.wikipedia.org/wiki/Annual_fuel_utilization...

   The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

4. 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.

5. UK homeowners flock to heat pumps but numbers still well ...

   www.aol.com/news/uk-homeowners-flock-heat-pumps...

   The MCS said the boiler upgrade scheme in England and Wales, which offers grants of up to £7,500 for installing heat pumps, and the home energy Scotland grant and loan scheme of up to £9,000 for ...

6. 2024 Guide To Energy Efficient Home Improvement Tax Credits - AOL

   www.aol.com/2024-guide-energy-efficient-home...

   Learn how the Energy Efficient Home Improvement Credit can help cover up to 30% of costs. ... $2,000 for heat pumps, biomass boilers or stoves. $250 per exterior door — up to $500 total.

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

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

   Norton said he is buying a new $7,000 high-efficiency oil-hot-water boiler for at least one of his buildings to replace Con Ed-supplied gas. ... $3 a gallon for home heating oil to fill his 40 ...