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Why does Focus on Energy not encourage continuous fan use on a furnace when it saves money and lasts longer?

An ECM furnace fan set to run continuously will not save electricity and will likely use even more electricity than a PSC furnace fan on auto.* Also, while there is a brief surge of electricity when the motor turns on, this energy is equivalent to running the motor for only a few seconds. In addition, the more frequent on-and-off cycles will not increase the chances of the motor dying prematurely.

*Source: Electricity Use by New Furnaces: A Wisconsin Field Study October 2003 Energy Center of Wisconsin

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