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need help sizing a/c

I am in the process of building a new home. The style is geodesic dome. I am trying to figure out how to size the a/c for it. I am wondering if anyone can point me to a formula or program that might work on that type of house? Or if anyone would like to try I can give you the construction/climate details.


PS: I have attached a couple of pictures of my house


  • Empire_2Empire_2 Member Posts: 2,343

    Looking at your new house, the lower level seems easy as in total area, plus windows, exposure average deg. day etc... Do you know the area or total volume of the dome? I'm sure there had to be measurements when in the building process. I personally haven't sized a house like this, but I am interested in the final results.
    Mike T
  • steve_115steve_115 Member Posts: 2

    the total volume of the dome it self is 21,845 cu.ft. plus it sits on a 2 ft. riser wall , the dome is 45 ft. in dia. it is a fairly open floor plan, I was planning on using a 3 or 4 zone mini split ac system.
  • John Mills_5John Mills_5 Member Posts: 935
    The accurate way

    is a thorough Manual J. You can get a homeowner's registration of HVAC-Calc for $49. It's a very easy program plus you can give Don a call for any questions. Considering how much you are going to spend on minis, this is a cheap investment.
  • steve_115steve_115 Member Posts: 2

    do you think this program would work on this style of home
  • Empire_2Empire_2 Member Posts: 2,343

    Just got off the phone with Don from the above mentioned,...I tol him about your post. Check out the sight. He knows about your questions...
    Mike T.
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