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mrd · 02-13-12, 08:05 AM

Once you select equipment and determine the temperature at which gas is cheaper, then you could find a website with daily average temps for your area, and use that to count days on heat pump vs days on gas, and run the numbers from there. Using averages should get you close enough.

02-13-12, 08:05 AM	#4
mrd Apprentice EcoRenovator Join Date: Feb 2010 Location: Milford, DE Posts: 106 Thanks: 5 Thanked 9 Times in 9 Posts	Once you select equipment and determine the temperature at which gas is cheaper, then you could find a website with daily average temps for your area, and use that to count days on heat pump vs days on gas, and run the numbers from there. Using averages should get you close enough.