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4X4 · 12-03-2010, 06:24 PM

I'm no furnace pro, but I was under the assumption that BTUs was essentially heat output. So in theory, you'd want the same BTUs. It'd just require less energy to produce those BTUs. Same BTUs, lower energy bill.

12-03-2010, 06:24 PM	#16
4X4 One of the Nine Join Date: Dec 2004 Exp:	I'm no furnace pro, but I was under the assumption that BTUs was essentially heat output. So in theory, you'd want the same BTUs. It'd just require less energy to produce those BTUs. Same BTUs, lower energy bill.