We live in Sun City, AZ. We need a new A/C unit for the house (2400 Sq ft). How many tons do I need? 1, 2 or 3

Answer 1

first thing you need to do is have a load calculation done on your home. This will take in consideration of how many and what quality windows and doors, amount of insulation, which direction the longest side of your faces, number of people living there and the average temperature for the area you live in ...once this is done you can determine the correct size of the unit...normally though it will work out like this. A good home with quality doors ,windows and lots of insulation could get by with one ton for every 750 sq ft. A bad home with bad windows and doors with little insulation could need a ton for every 500 sq ft. So depending on which home you have it could be a 31/2 ton unit (good home) to a four1/2 or 5 ton unit (bad home)..

Answer 2

Indoor outdoor 4 or 4 and 1/2 ton 14 SEER would be in the neighborhood of 6000$ to 8000$ depending on the make. A Goodman or Ruud would be on the low end and a Trane,Carrier,or York would be on the higher end.A Rheem would be somewhere in the middle. The 3 ton unit that you have does seem very small for your home. You for sure need an upgrade in tonnage. I have a 3 and 1/2ton and my home is only 1800 sq ft. Good luck.

Answer 3

12,000 BTU =1 ton 500-800 sq ft depending on a load calculation per ton of a/c how ever in AZ you use a swamp style cooler due to the low humidity. Trane-Carrier-Lennox all top brands some 20 others. which is the best since the ecology movement builders have been forced into a efficiency rating ahead of knowledge to perform task they are all having issues with different components. get extended warrentee 10/10/10. Tampa Fla. HVAC

Answer 4

I happen to live in Phx and I'd say at LEAST a 3 ton for a 2400 sq ft house. At the very least......but honestly.........I would think that 2 - 2 ton units would do you better.

Answer 5

My 1600' house has a two ton, we live near Asheville Nc, you can look up the degree days comparison charts to see how Sun City compares. I'd say you probably need at least a 3 ton, is that area really hot in the summer? If so, you may even need a 4 tonner.

Answer 6

More than the square footage should be considered for your selection of A/C unit size...number of windows [and are they single-pane or double?] and their size [picture windows or conventional?] and location [compass points? west & south are hot-hot-hot, north and east are cooler]. All these are important to factor in since heat gain [or loss in the winter] is deeply affected by style, location & makeup of windows...are the walls/ceilings/floors insulated? Quickie modular construction often isn't well insulated--and some older houses have insulation inside the walls, ceilings & floors that has shifted or packed down or wasn't high enough in R-ratings when they built it the first time.

Best tip du jour: your local power company should give you a FREE ESTIMATE on all of the aspects above, which they'll measure and look at, and they can give you an "energy audit" report that you can take to an A/C supplier or contractor for estimates based on realistic requirements on beyond just the size of residence. Being "under-served" in a hot climate means paying for running the A/C 24 hours a day...and being "over-served" can mean a couple thousand $$ you may not need to spend!

Answer 7

This size is dependent on many factors not just square footage of the house. How many windows? What type of windows are they; thermal or not? How many of those windows face the path of the long hot summer sun?
How many, if any, trees shade the house? What is the quality of the insulation of the walls and attic area. How many "heat" producing appliances are in use? Most A/C providing companies will come and do an audit of your home.

Answer 8

I live in Central Mississippi and for a 2400SF house I would put in at least a 4 ton unit minimum.

Answer 9

Your furnace should be a 120,000 btu furnace with a 5 ton blower for 2400 sq. ft..
You will have to install a 5 ton a/c system.

Answer 10

1,2 or 3?
Hmmm that's a tough one...
I've got a 33.3333333333333333333333333333333333333333333333333333333% (Percent) chance I'll be right.

I choose, 2.
1... No 2 it is.

Any advance on 3?

Go for 2. It's the middle number...