I'm adding on to my house and my new square footage will be ~3000-3200. 2000 of which is on the main floor and the remainder upsatirs. I've been told that a rule of thumb is the size of the unit is one ton per 500 sq ft. So I need a 6 ton unit?
Secondly, whats the breakdown for paying for added SEER rating and actual savings,,,, at what point does the SEER rating reach diminishing returns?
2007-09-10 16:01:14 · 6 answers · asked by James S 1 in Home & Garden ➔ Maintenance & Repairs
actually you need a heat cool analysis done on your home...this would tell you exactly what you need ....if you are using a good insulation in all the walls and installing double pane windows and taking in consideration what area you live in it would be more like this...it could be as high as 750 sq ft per ton ( very well insulated home with good windows and doors) to 500 sq ft per ton ( old home with single pane windows and not much insualtion)....most units installed will cost about 1800 to 2500 dollars per ton...this includes the unit and the duct work and all parts, wiring needed..get three or four estimates as nearly all companies do these for free
2007-09-10 16:26:08 · answer #1 · answered by Anonymous · 3⤊ 0⤋
I have a 4 ton unit that I just had to replace the "N" coil in. That ran me about 1600. They wanted between 3500-5000 for a new unit that ran the new freon R408 I think it is called. The new stuff is not compatible with the old freon and everything would have to be replaced including the copper lines to the outside unit. You may want to consider installing 2 units instead of one big one. That way you will have 2 zones and may save some money in the long run..
good luck.
2007-09-10 16:10:11 · answer #2 · answered by Fordman 7 · 0⤊ 0⤋
wwwstat is right you need to do an analysis on the house. Sizing is not that simple, it takes a lot of calculating.
I have nearly 2000 sqft including my basement as was able to use a 2 ton system. I did this by building a ground source heat pump and lots of insulation.
2007-09-10 16:50:58 · answer #3 · answered by mike b 5 · 0⤊ 0⤋
more info is really needed,if the addition to the home is a second floor i would recommend a separate unit. (heating and a/c) it may cost a little more but you will be more comfortable especially if you are In a place where you will use the a/c more often.
stay away from a zone damper controlled system. in residential homes they are often not installed properly causing in premature failures and costly to repair. 2 units better than 1.
not 2 zone stats and 1 heater & a/c. if your pocket can afford it.
2007-09-10 16:30:07 · answer #4 · answered by Len B 2 · 0⤊ 0⤋
As a heating and cooling professional.
I always do a heat gain, heat loss calculation using wright soft.
Most any Bryant or Carrier factory authorized dealer will use the same program.
Bryant and Carrier, both the same France, are the only manufacturer in the US who has factory authorized, factory trained dealers.
go to bryant.com or carrier.com and type in your zipcode.
You will get a list of factory authorized dealers in your area.
Get 3 to 4 estimates, and get at least 3 references from each dealer.
Throw out the high, and the low and pick the best middle estimate that works for you.
2007-09-10 18:00:22 · answer #5 · answered by USMC Rando 5 · 0⤊ 0⤋
my husband is a home builder we have 3000 square feet and we have 3 ton. Make sure you insulate well. He says its very important. Good luck!
2007-09-10 16:22:41 · answer #6 · answered by red head 2 · 0⤊ 3⤋