Question about Heating & Cooling
I like to run the ducts under the house so the cool air or heat will come from the floor up and go through the house.
You haven't included enough information to give you an accurate number. Things to consider are:
- R value of attic and wall insulation
-cubic footage of the living area
-are the windows single double or triple paned... low E ?
-how many hours of direct sun?
-how many points of return air do you have?
Its better to over size your system than to undersize.
One more thing to consider.... heat rises, cooled air falls and if you want to run your ducting under the house? insulate the crawlspace walls.
Posted on Nov 20, 2013
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Posted on Jan 02, 2017
You currently own a 2.5 ton AC Unit
500 square feet equals a ton of cooling/ you need a 3.5 ton unit.
If your home is well insulated, good windows and doors and pretty good
shade that covers your house, then I can see a 3ton unit cooling your
Thats another 6,000 btus you do not have and that is a best case for a
energy effcient home.
Posted on Jul 08, 2010
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