What size A/C unit should be sufficient for an 1,800 sq ft Home?

Answer 1

Depends on size of furnace that is in place now. For every 400 cfm you get a ton of cooling. You need to size it based on current furnace of if soon upgrading size of new blower and cfm output. This is a big place to start.

Answer 2

Kind of a trick question. Although square footage is one consideration, you also need to add in the number of windows and doors in the home. A good heating/AC person will do a full inspection to determine what you need. My 1800 sq. ft. home had a 3-1/2 ton unit.

Answer 3

You really need someone with HVAC experience to perform a heat/cool analysis for the entire house. Square footage is not adequate to determine size.
I have a 3 1/2 Ton unit to cool a 2 story 9 room house with 2 1/2 baths and full basement. The house faces West, is fully insulated and my load calculations stated 39,000 btu's. Divide that by 12,000 btu and it comes up to a 3 ton PLUS so I went with a 3 1/2 T.
don't guess at it, a unit that is sized to big will not dehumidify the house and leave you uncomfortable. An undersized unit will run and run and run and cost you $$$$ and still not cool properly.
SIZE MATTERS.........(ask your wife)

Answer 4

Indoor outdoors 4 or 4 and one million/2 ton 14 SEER may be contained locally of 6000$ to 8000$ reckoning on the make. A Goodman or Ruud may be on the low end and a Trane,provider,or York may be on the better end.A Rheem may be someplace interior the middle. the three ton unit which you have does seem very small to your place. You for constructive choose an improve in tonnage. I honestly have a three and one million/2ton and my house is barely 1800 squarefeet. stable success.

Answer 5

roughly 30 btu/hr/sqft for 10ft ceiling
size=30*1800
=54000 btu/hr
size of a/c for a house expressed in tons
size=54000/12000
=4.5 tons