the savings is going to come from the varible speed motor as ecm motors consume less energy if the duct work is sized properly.no matter the brand they all use the same motor. you might need a oversized furnace to get the full seer rating .
the savings is going to come from the varible speed motor as ecm motors consume less energy if the duct work is sized properly.no matter the brand they all use the same motor. you might need a oversized furnace to get the full seer rating .
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