A furnace with an input btu of 100 000 and an efficiency of 80 percent would be a perfect fit because 80 percent of 100 000 btu is 80 000 btu.
80000 btu electric furnace.
The average furnace has a btu rating of 80 000 to 100 000 btus.
Goodman gmh80803bn 80 000 btu furnace 80 efficiency 2 stage burner 1 200 cfm multi speed blower upflow horizontal flow application.
Goodman gmh80805cn gas furnace two stage burner multi speed blower upflow horizontal 80 000 btu 4 0 out of 5 stars 1 goodman gmss920803bn single speed 1 stage upflow horizontal low nox gas furnace with 17 1 2 92 afue 80 000 btu 1 200 cfm.
Whether you live in new england the upper plains or in a house with less than ideal insulation you need a furnace that can really bring the heat.
The btu refers to the heat output the furnace creates.
Wholesale furnaces buying guide.
You ll want to look at a unit s btu as well as its efficiency.
A furnace with 100 000 btu and an efficiency of 90 delivers 90 000 btus of heat to a home the remaining 10 is what is lost through the flue.
Gas furnaces use gas to heat your home.