# Costs and retrofit notes

Compare the complete project rather than one equipment price. A heat pump proposal may include an electrical panel review, wiring, a new air handler, duct changes, condensate handling, and removal or retention of the old system. A furnace proposal may include gas service, venting, combustion air, duct repair, and a separate cooling system.

Operating cost depends on local electricity and gas prices, seasonal equipment performance, weather, thermostat choices, and the building envelope. A useful estimate shows its assumptions instead of promising one universal winner.

Incentives can change the first cost, but eligibility and value vary by place and time. Treat them as a checked input to the decision, not a number embedded permanently in an estimate.

Maintenance plans matter too. Ask who can service the selected equipment, what routine care it needs, which parts are commonly stocked, and how warranty labor is handled.