However if a furnace is rated at 100 000 btus and is 92 efficient then the heat output will be 92 000 btus 100 000 x 92.
80000 btu furnace how many square feet.
It may be worth considering a more efficient furnace as less energy will be used to.
Another quick and easy way to estimate the number of btu s required is with this helpful chart.
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.
80 000 btus british thermal units should heat up 3 500 square feet.
A 70 000 btu furnace will heat a house 1600 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.
Consult an hvac expert for.
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.