House is in the Chicago area and is insulated moderately.
2007-11-21 07:36:32 · 2 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
There is a lot more to it than just the square footage. To find the size and properly design the system you need a load calculation. You won't save anything by guessing and putting in the wrong size. For more info, check out the load calculation page at www.hvac-for-beginners.com. If you guess too big it will cost you more for the equipment and you won't be comfortable. If you guess too small it will run all the time and cost you more in operating as well as comfort. Also to guess you have to know the efficiency you want.
2007-11-21 08:07:07 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This Site Might Help You.
RE:
Can you estimate gas furnace size (btu's) for a 1900 square foot home?
House is in the Chicago area and is insulated moderately.
2015-08-24 04:01:18 · answer #2 · answered by Osmund 1 · 0⤊ 0⤋
the reason for so many answers is that with out all the information it can not be done and sure that if you find a guy with a pc with the right program in and you have all the sizes and how thick your wall insulation is and the size of each window how much insulation in the attic what do you have on the out side of your home all this and then some for its been while i did this in school for heating and a/c and plumbing you need to know the kind of plants you have around house and if the cellar has any insulation in it the slat of roof and what you have it cover with,there are just some of the things you will need ,all so like where you put the heater ,there is more but you have the idea if you want the down to the close btu for the weather plays in size to.
2016-03-18 03:42:14 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Gas Furnace Sizes
2016-12-18 12:19:47 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Yes!------Let me think, it gets pretty cold in Chicago as I remember and can get quite hot. I would be looking at an average low of say 15-20 degrees and a high in the 80's.
A rule of thumb formula with 4" walls and insulation to code----1900 sq. ft. x 8' average ceiling height = 15200 divided by 10 =1520 divided by 300 BTU's for heating = 5+x 12000 BTU(1 ton of heat)= 60,000 BTU needed min. To cool, you would need about 3.5 tons or 42000 btu.
Bigbair70---------Never let them see you sweat !!!!!!!!!!
2007-11-21 08:33:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
You need someone who is experienced in calculating sizes. This takes into consideration the amount of doors and windows in a home plus some other factors. If you call a contractor and give the info you gave here, and he gives you an answer, stay away from him.
2007-11-21 08:17:41 · answer #6 · answered by sensible_man 7 · 0⤊ 0⤋