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Hey Bruce, If we switch from AC units to heat pumps for our house in Idlewild, do we also need to replace the furnace, or will the heat pump be sufficient for both heating and cooling in Fredericksburg? And is there anything in building codes or insurance requirements that you have a furnace along with your heat pump? Hope you can help with this. Thanks.

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Steve,

I assume you currently have a gas furnace along with an air conditioning unit. I had this system and replaced the furnace and A/C equipment with a dual fuel heat pump system which uses the gas furnace as the auxiliary/emergency heat fuel. The heat pump stops running when the gas furnace kicks on. I don't believe you can get by without replacing the furnace, but you should check with a HVAC installer. You may be eligible for up to a $2000 federal tax credit and a $400 rebate from Columbia Gas. Make sure the installer changes the outside temperature which turns on the gas furnace to 25 or 30 degrees vs the default 40.

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Great help. Thanks so much, Bruce.

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