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spicercars · 12-07-2014, 04:32 PM

Usually the btu is marked on a tag on the inside of the furnace door. That's where mine is. Good luck.

12-07-2014, 04:32 PM	#2
spicercars Senior Member Join Date: Aug 2013 Location: Saginaw Mn Posts: 1,728	Usually the btu is marked on a tag on the inside of the furnace door. That's where mine is. Good luck. __________________ 2012 Keystone Retreat 39 FDEN 99 Dodge One Ton Diesel Dually