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  • square ft in a room with 10 foot celings

    to determine square footage for porpouses of tonnage/btu in a room with 10 foot ceilings. the room is 38' by 22' with 10 foot high ceilings. that gives me 836 square feet wich would require roughly (for my demographic location) 1700 btus or a 1.5 ton system.but as far as i know this is a rough calculation for rooms with 8 foot ceilings. with 10 foot ceilings what would the rough estimate on btus needed be?

  • #2
    1- where do you live what state?

    2- how many windows ?

    3- is this facing north or south ?

    4- what is the r value of insulation in walls / ceiling ?

    this is some of the things you need to also calculate the BTU'S .

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    new work pictures 12/09


    • #3
      VERY VERY rough way to calculate is
      L x W x H x 600 = BTU needed
      However windows, r value, north etc play BIG factor!