A heat pump quote and a furnace quote may cover very different jobs. Compare heating, cooling and installation changes before choosing the lower number.
By ProjectSide · October 21, 2026
Start here.
A heat pump can heat and cool; a furnace may depend on separate cooling equipment. Compare complete options for your home, including electrical or venting changes, backup heat and the energy rates used in any savings estimate.
Define what is changing.
A heat pump can provide heating and cooling. A furnace proposal may rely on separate equipment for cooling. Ask whether the quotes replace the same parts of your system and identify any equipment being retained.
Ask how capacity was selected.
Have the installer explain the heating and cooling loads, the equipment’s performance under the design conditions and any backup arrangement. Ask for the proposed model numbers. Choosing by the old unit’s size alone does not show that the new proposal fits the current home.
Include the conversion work.
Request details on electrical capacity, gas or venting work, controls, ducts and removal. Cheaper equipment can still cost more overall if switching systems requires extra work. Keep necessary work and optional improvements separate in the written offer.
Compare operating-cost assumptions carefully.
Ask which electricity and fuel rates are used, what indoor temperature is assumed and how backup heat is modeled. Savings depend on those inputs and actual operation. A claim that one technology always costs less to run should be supported for your situation.
Choose the tradeoffs you actually value.
Discuss noise, comfort, maintenance access and how each system behaves in the conditions you care about. You can ask for alternatives without committing to either. A clear scope gives you more negotiating room than a brand name and a monthly payment.
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