A gas furnace and a heat pump are not the same shopping cart. One is heat only. The other heats and cools. San Diego’s mild winters make heat pumps efficient most days. That still does not produce a network-wide installed price or an after-rebate net.
Climate Pros SD matches you with licensed independent HVAC companies. We do not install, set prices, or warrant either fuel.
What belongs on each kind of quote?
Gas furnace replacement (heat only): cabinet, venting, gas connection, electrical for the furnace, old-unit removal, thermostat if needed, permit. Cooling is a separate system if you still have an AC.
Heat pump replacement (heat and cool): outdoor unit, indoor air handler or coil, line set, electrical (often a new circuit and disconnect), heat-pump thermostat setup, recovery of old refrigerant, permit, HERS when Title 24 applies.
Ask both quotes to list exclusions: panel upgrade, duct replacement, and asbestos.
If you only need heat and the AC is healthy, a furnace-only scope is usually the honest compare. If both boxes are old, compare one heat pump to furnace plus AC, including two labor mobilizations versus one.
What 2026 incentives are actually open?
Do not paste a 2024 internet stack onto a 2026 bid.
| Program | Status for a new San Diego job |
|---|---|
| Federal 25C | Qualifying property placed in service through Dec 31, 2025 only. IRS 25C. Qualifying 2025 heat pumps: IRS design cap $2,000 per year. Not for 2026 installs. |
| TECH Clean California single-family | New reservations stopped Nov 14, 2025. TECH incentives. |
| HEEHRA single-family | Fully reserved Feb 24, 2026. |
| TECH + HEEHRA together | Not allowed as of Jul 15, 2025. |
| SDG&E Golden State retail | Ended. Confirm sdge.com/rebates. |
Contractor enrollment in TECH is not money reserved for your address. HEEHRA is not retroactive. Income-tier stories you read online describe program design when funded, not a current application window.
SoCalGas sometimes runs high-efficiency gas offers. Verify on the utility, not on this page.
Longer rebate walkthrough: California HVAC rebates 2026 and heat pump vs furnace.
How should you think about operating cost?
Compare gas furnace plus AC to heat pump, unless you truly have no cooling.
A gas furnace’s ceiling is its AFUE (often 80% or about 96% condensing). A heat pump’s heating COP is often in a 2.5-3.5 range in mild weather: more heat moved than electricity consumed. San Diego rarely sits in the deep-freeze band where COP collapses. Mountain and desert-edge nights are the exception to check.
Electricity is billed on your SDG&E plan. Common residential time-of-use plans list 4-9 p.m. as on-peak. Confirm at SDG&E pricing plans. This article does not invent cents per kWh or an annual savings band.
Solar and NEM 3.0 change whether daytime heat-pump use is “cheap leftover solar” or just more imports. That is household-specific. Ask for a load calc and a panel look, not a blog TCO table.
Where does a heat pump usually win the conversation?
Both AC and furnace are due. One outdoor unit, one labor event, one refrigerant circuit.
You can shift heating and cooling off 4-9 p.m. with setbacks or preheating, health permitting.
Panel and ducts already work for an electric outdoor unit.
Where does gas still win the conversation?
Only the furnace is dead and the AC has years left. Do not replace working cooling to chase a closed rebate.
The panel cannot take the heat-pump load without a heavy electrical project you do not want.
You want the “hot blast” feel of combustion air and you accept a separate AC.
Resale stories about heat-pump premiums and future gas-hookup policy are speculation. California new-construction rules are not a price tag on your 1998 tract house.
FAQs
Is a heat pump cheaper than a gas furnace in San Diego?
Installed, a heat pump is a larger scope because it also cools. After 25C ended for 2026 placed-in-service dates, and with TECH and HEEHRA single-family closed to new reservations, do not assume incentives close the gap. Quote both.
How much does a gas furnace cost installed in San Diego?
Climate Pros SD does not publish bands. See the quote lines above and furnace replacement.
What is cheaper to run, a heat pump or a gas furnace?
Often the heat pump in mild weather on a COP basis, especially versus furnace plus a tired AC. TOU timing can erase that if you heat hard from 4-9 p.m. No dollar forecast here.
Will a heat pump work in San Diego winters?
For most of the county, yes. Confirm backup heat and mountain addresses separately.
How long does a gas furnace last vs a heat pump?
Furnaces often 15-25 years. Heat pumps often shorter because the compressor works in both seasons, and coastal salt hits the outdoor unit. Maintenance records matter for both.
What is the federal tax credit for heat pumps in 2026?
None for property placed in service after December 31, 2025. The $2,000 figure is the IRS design cap for qualifying 2025 heat pumps, not a 2026 coupon.
Which SDG&E rebates apply?
Confirm live offers on sdge.com/rebates. Do not stack closed TECH and HEEHRA.
Are heat pumps loud compared to gas furnaces?
Outdoor sound is in the same family as an AC condenser. Indoor air handlers have no burner. Inverter units often run quieter at part load.
Should I replace my old gas furnace with a heat pump?
Quote both when the AC is also aging. Keep gas furnace scope when cooling is fine.
Related: AC repair, replacing AC with a heat pump, Oceanside HVAC.
When to call
If you want both scopes itemized, call (442) 777-6440. Climate Pros SD matches you with a licensed independent HVAC company. Ask them to separate pending incentives from the equipment price. This brand does not do a free in-home assessment.