In the example you would divide 35 000 by 12 000 and get 2 92.
3 ton furnace square footage.
So while 3 ton heat pump may be labeled and sold as three ton unit it may not produce anything close to its rated 36 000 btu h in cooling.
45 000 12 000 3 75.
Divide the result from step 4 by 12 000 to determine the tonnage requirement of the furnace.
A gas furnace does require that your home is.
But it s vital to understand that there are.
So for instance a 1 500 square foot home would look something like this.
For example a 95 rated efficiency furnace with a power rating of 80 000 btu hr has a power output of 0 95 x 80 000 btu hr 76 000 btu hr.
Acs are sized in tonnage which measures the amount of cooling the unit can provide in an hour.
Gas furnace prices range from 1 600 to 8 000 for a 3 0 ton unit.
1 500 x 30 45 000.
You can also get a rough estimate by looking at the square footage of your house.
I felt a 3 ton unit would be enough but in the square footage i measured itt includes a den with a high open beam celling.
Furnace output and air conditioner size for a bungalow.
Tonnage will increase the price by about 300 to 400 per extra ton of cooling.
This chart is a general guideline that covers tiny houses to average size homes.
Its like a rectangle measuring 17 5 x 19 5.
Some of the most efficient units today can get up to 97 3 annual fuel utilization efficiency afue ratings.
In general purchase according to 1 000 square feet per ton.
3 75 1 0 2 75 so you d need a 2 5 or a 3 ton sized central air conditioning unit.
If you are looking to save on energy costs you can consider buying a 3 ton heat pump split system.
This home would require a furnace that has a tonnage of approximately 3.
Many different factors other than square footage that determine how effective the any heat pump will be.
Keep in mind that the following furnace output power estimates are aside from the furnace s nominal power ratings.
The celling is on the longer side of the four walls.
A quality three ton heat pump can effectively heat or cool an average area of 1 500 square feet but will be too large for smaller spaces.
For this example using an 80 efficient furnace the 1900 square foot home above would require a 90 000 btu input furnace that produces 72 000 btu s of heating which is close enough to the 76 000 btu s required using the climate heating factor.
High efficiency furnaces can help you save during the colder months of the year by using less natural gas to heat your home.
House square footage times 30 divided by 12 000 1 0 required tonnage.