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How Does a 95% Furnace Work? - Smart Inspector Science
by Thomas Feiza February 11, 2022

By Tom Feiza, Mr. Fix-It, Inc. HowtoOperateYourHome.com The efficiency of forced air furnaces has changed dramatically. From roughly 1920 to 1980, ...

Posted in btu, control systems, dampers, efficiency, flue, furnace, heating, hvac, venting

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