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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. Home improvement - Wikipedia

   en.wikipedia.org/wiki/Home_improvement

   Home or residential renovation is an almost $300 billion industry in the United States, [5] and a $48 billion industry in Canada. [6] [full citation needed] The average cost per project is $3,000 in the United States and $11,000–15,000 in Canada. Professional home improvement is ancient and goes back to the beginning of recorded civilization.

4. Furnace (central heating) - Wikipedia

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

   In some areas electrical resistance heating is used, especially where the cost of electricity is low or the primary purpose is for air conditioning. Modern high-efficiency furnaces can be up to 98% efficient and operate without a chimney, with a typical gas furnace being about 80% efficient. [1]

5. New efficiency standards for home furnaces unveiled [Video] - AOL

   www.aol.com/news/biden-administration-unveils...

   In an effort to reduce the greenhouse gas emissions that are causing climate change, the Department of Energy on proposed new energy-efficiency standards Monday for residential gas furnaces.

6. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   The energy cost of heating is one of the main costs of operating a building in a cold climate. Some central heating plants can switch fuels for reasons of economy and convenience; for example, a home owner may install a wood-fired furnace with electrical backup for occasional unattended operation.

7. The best Cyber Monday appliance deals at Home Depot ... - AOL

   www.aol.com/lifestyle/the-best-cyber-monday...

   Select appliances are up to 40% off through Monday at Home Depot. Each comes with free delivery and install, which you absolutely cannot beat. Refrigerators and select washers and dryers are up to ...