80000 Btu Furnace How Many Square Feet

How many sq ft would 80000 btu s heat.

80000 btu furnace how many square feet.

For example if a furnace is rated at 100 000 btus and is 80 efficient then the heat output will be 80 000 btus 100 000 x 8. 80 000 btus british thermal units should heat up 3 500 square feet. For example if you re trying to heat 1000 square feet in a cold climate 30 000 40 000 btu s will add significant warm air to your home. Another quick and easy way to estimate the number of btu s required is with this helpful chart.

It may be worth considering a more efficient furnace as less energy will be used to. 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. Btu charts furnace output and air conditioner size for a bungalow bungalow area sq ft furnace output btu hr air conditioner size ton built after year 1980 built before year 1980 built after year 1980 built before year 1980 up to readmore. And in cold climates multiply the square foot number by 30 40.

If your house measures between 2 035 and 2 070 square feet a 80 000 btu per hour unit is best and more than 3 390 square feet requires a 120 000 btu per hour furnace.