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The furnace is part of an HVAC or central heating system used to generate heat. Typically this is done with gas, a heat pump, or an electric element. For hot water and radiator based heating, use the boiler tag.

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Is it possible to upgrade A/C to a heat pump by only replacing outside unit?

It has a Carrier gas-fired furnace, Carrier 5-ton A/C, and a smart thermostat. I'm slowly upgrading the major systems and replacing gas with electric wherever feasible. … However, since the gas furnace is already there, is it possible and/or feasible to upgrade the A/C to a Heat Pump by replacing only the outside unit, leaving the gas furnace in place as the air handler …
Chris O's user avatar
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