We would like to change our three season porch into a four season sun room and were wondering if our furnace the P3HUD20N10401C gas furnace could support the addition. Our home is 2425 square feet and the addition would be an additional 300 square feet.

You can contact York to find out what they rate that unit at, it is a York, right? We need more info to dtermine BTUs for your home. Try plugging in your numbers here BTU Calculator

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Originally Posted by ballengerb1

You can contact York to find out what they rate that unit at, it is a York, right? We need more info to dtermine BTUs for your home. Try plugging in your numbers here BTU Calculator

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:)Thank you for your help!