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2. 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 ...

3. 2024 Guide To Energy Efficient Home Improvement Tax Credits - AOL

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

   There’s also a $2,000 credit for heat pumps, heat pump water heaters and biomass stoves and boilers that meet or exceed the CEE highest efficiency tier and operate at a thermal efficiency rating ...

4. EnergyGuide - Wikipedia

   en.wikipedia.org/wiki/EnergyGuide

   Clothes washers, dishwashers, refrigerators, freezers, televisions, water heaters, window air conditioners, mini split air conditioners, central air conditioners, furnaces, boilers, heat pumps, and other electronic appliances are all required to have EnergyGuide labels. [1]

5. Air source heat pump - Wikipedia

   en.wikipedia.org/wiki/Air_source_heat_pump

   Installing too small an ASHP could shorten its lifetime (but one which is too large will be less efficient). [97] However others say that boilers require less maintenance than ASHPs. [98] A Consumer Reports survey found that "on average, around half of heat pumps are likely to experience problems by the end of the eighth year of ownership". [99]

6. House Energy Rating - Wikipedia

   en.wikipedia.org/wiki/House_energy_rating

   The use of this rating scheme was extended to public and commercial sector in 2007 and from 2012 the operational rating is mandatory for both residential and commercial buildings. The rating system consist of a scale ranging from A to E basis, where A represent the most efficient and E represent the least efficient rating.

7. Energy Star - Wikipedia

   en.wikipedia.org/wiki/Energy_Star

   The ratings are used by building and energy managers to evaluate the energy performance of existing buildings and industrial plants. The rating systems are also used by EPA to determine if a building or plant can qualify to earn Energy Star recognition. [40] In 2020 Energy Star released an updated guide for verifying Energy Star certifications ...