Quote:
Originally Posted by theoldwizard1
When it is EXTREMELY cold (below zero) and the wind is blowing hard my furnace DOES short cycle from hitting the over-heat limit switch. According to one service person (who I agree with), this is because the furnace has to run for a longer than typical AND the horizontally mounted furnace (mounted in the crawl space) does not allow "free flow" of air out and into the house. Warm air actually has to make 2 - 90° turns before it gets into the main supply duct.
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Blower speed is at maximum. Burner pressure is at minimum.
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The ductwork is way too restrictive.
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