Goodman gmh80803bn 80 000 btu furnace 80 efficiency 2 stage burner 1 200 cfm multi speed blower upflow horizontal flow application.
													
																	80000 btu electric furnace. 
									
	
		
	
																	The btu refers to the heat output the furnace creates. 
																	You ll want to look at a unit s btu as well as its efficiency. 
																	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. 
																	80 000 btu gas furnaces turn back winter s iciest blasts with an 80 000 btu furnace that will chase the chill for less money and less worry than your old furnace. 
															
													
									
	
		
	
																	But if you chose a furnace with a higher efficiency like 93 percent you could downsize to a smaller input btu closer to 85 000. 
																	Wholesale furnaces buying guide. 
																	The average furnace has a btu rating of 80 000 to 100 000 btus. 
																	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. 
															
													
									
	
		
	
																	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.