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  • Users: Rob1964
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  1. Rob1964

    Residential System/Duct Matching

    I have a good handle on the cooling load of my home, 38,000BTUH-40,000BTUH. It is an older house with most likely undersized ductwork (designed for heating only, it is a forced air gas furnace). My choices were a 3 or 3 1/2 ton unit, I'm going with the 3 1/2. The Contractor is going to put in...

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