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Ryland · 02-26-12, 10:21 AM

If you are going to replace your furnace in a year or two, why not install a heat pump inline with it at that point in time?
I was checking in to air source heat pumps in my area and natural gas is cheap enough here that there would be very little cost savings for me, so unless you are using fuel oil or LP I don't see you saving $350 a year, my best guess is that I could save $50 a year with an air source heat pump over the cost of cheap natural gas and natural gas would still be the cheaper heat when it's below -0- so the only time I can see it being worth installing a heat pump with a furnace that is going to be removed in a year or two would be when you have a mini-split that is not part of the furnace or when you are going to be able to keep using your furnace for a few more years beyond it's current life span because the heat pump is taking that much of a load off of it, but new furnaces often also have multi-speed fans that save a lot on the electrical side.

02-26-12, 10:21 AM	#3
Ryland Master EcoRenovator Join Date: Mar 2009 Location: Western Wisconsin. Posts: 913 Thanks: 127 Thanked 82 Times in 71 Posts	If you are going to replace your furnace in a year or two, why not install a heat pump inline with it at that point in time? I was checking in to air source heat pumps in my area and natural gas is cheap enough here that there would be very little cost savings for me, so unless you are using fuel oil or LP I don't see you saving $350 a year, my best guess is that I could save $50 a year with an air source heat pump over the cost of cheap natural gas and natural gas would still be the cheaper heat when it's below -0- so the only time I can see it being worth installing a heat pump with a furnace that is going to be removed in a year or two would be when you have a mini-split that is not part of the furnace or when you are going to be able to keep using your furnace for a few more years beyond it's current life span because the heat pump is taking that much of a load off of it, but new furnaces often also have multi-speed fans that save a lot on the electrical side.