Five years ago this was not a real question in Sacramento. A furnace failed, you put in a furnace. Today about a third of the replacement quotes we write in SMUD territory end up as heat pumps, and the reason is not ideology. It is that the numbers changed. Here is how we walk through the decision with customers, including the parts that favor keeping gas.
The short version
- Climate: Sacramento winters are mild enough that a modern heat pump heats the house efficiently without gas backup. This is not Minnesota.
- Rebates: in SMUD territory, currently $3,000 for a variable-stage heat pump or $2,000 for two-stage when it replaces a gas furnace, plus up to $2,000 toward a panel upgrade. Roseville Electric has its own program. PG&E electric territory has less.
- Federal tax credit: gone. The 25C credit that paid up to $2,000 on heat pumps ended for systems installed after December 31, 2025. Anyone still quoting it in 2026 is out of date.
- Where gas still wins: a house with a young, healthy air conditioner; a home where the electrical panel is full and there is no rebate to cover the upgrade; anyone who strongly prefers the feel of gas heat.
How a heat pump heats, in one paragraph
A heat pump is an air conditioner that can run in reverse. In summer it moves heat from inside the house to outside. In winter it moves heat from the outdoor air into the house, and there is usable heat in outdoor air well below freezing. Because it moves heat rather than making it, a heat pump delivers roughly three units of heat for every unit of electricity in mild weather. A gas furnace, even a 95% one, can never deliver more heat than the fuel contains. That efficiency gap is the whole argument, and it is largest in exactly the kind of winter Sacramento has: lows in the high 30s, days in the 50s, a handful of nights near freezing.
The case for a heat pump
- One system instead of two. The heat pump replaces both the furnace and the air conditioner. If your AC is also old, which in the 1990s and 2000s tracts of Elk Grove, Natomas and Roseville it usually is, you are replacing two failing systems with one.
- The rebate is large. $3,000 from SMUD covers a meaningful share of the difference between a furnace-plus-AC replacement and a heat pump. We apply it on the quote.
- No combustion in the house. No heat exchanger to crack, no carbon monoxide reading to take, no flue. For the older homes in Land Park and East Sac with a floor furnace venting into the living room, this alone settles it for a lot of people.
- The direction of the rules. The City of Sacramento has required all-electric new construction since 2023 and adopted a plan to move existing buildings off gas by 2045. Nothing forces your hand today. But a furnace installed in 2026 will be the last one in that house either way.
The case for keeping gas
- Your air conditioner is fine. If the AC is under ten years old, replacing it early to get a heat pump throws away working equipment. A new furnace paired with the existing AC is the cheaper and perfectly sensible choice. We will say so.
- The panel is full. Older homes on 100-amp service sometimes need a panel upgrade to add a heat pump. SMUD’s panel bonus covers part of that in its territory. Outside it, the upgrade can eat the savings.
- You want hot air. A furnace blows air at 120 to 140 degrees. A heat pump blows air at 90 to 105. The house ends up at the same temperature, but the air from the register feels different, and some people do not like it. That is a legitimate preference and we do not argue with it.
- You are not in SMUD territory and not in Roseville. Without a utility rebate and without the federal credit, the upfront gap is real and the payback is slower.
Dual fuel: the option nobody mentions
A dual-fuel system pairs a heat pump with a gas furnace and lets the thermostat choose. Above a set outdoor temperature, usually the mid-30s, the heat pump runs because it is cheaper. Below it, the furnace takes over. In Sacramento the furnace would run a handful of nights a year. It is the right answer for the small number of homeowners who want the efficiency but will not give up the gas backup, and for homes where the existing furnace is young and the AC is the thing that failed. It costs more than either option alone and it qualifies for fewer rebates, which is why nobody leads with it. But it exists, and for some houses it is the honest recommendation.
What about the electric bill
The fair question. A heat pump moves your heating cost from the PG&E gas bill to the SMUD electric bill. Whether the total goes down depends on your rates, your house and how you use it. In our experience with Sacramento-area homes replacing an older 80% furnace and running a heat pump through a normal winter, the combined bill usually comes down, and it comes down more in homes where the ducts have been sealed. We do not promise a number, because anyone who promises a number has not seen your house. We will look at your last winter’s gas bills and estimate honestly.
If your bill already jumped and you are trying to work out why, our guide to why a heating bill is so high covers both the gas and the heat pump side.
How we quote it
- We look at the age and condition of both the furnace and the AC, because the answer depends on both.
- We check the electrical panel and the ducts, because both change the cost.
- We confirm the current SMUD or Roseville Electric rebate amounts that day, because they change.
- We write two numbers side by side, furnace and heat pump, with rebates applied, and we tell you which we would pick for our own house.
Diagnostic is a flat $69, credited toward the work. For the equipment side see heat pump installation in Sacramento and furnace installation in Sacramento. For which brands hold up here, our guides to heat pump brands and furnace brands. And if you are not sure the old furnace is actually done, start with when to replace a furnace.
Frequently asked questions
Is a heat pump enough to heat a house in Sacramento without a furnace?
Yes. Sacramento winter lows sit in the high 30s with only a handful of nights near freezing, and modern heat pumps heat efficiently well below that. Most of the heat pump systems we install here have no gas backup.
What rebates are available for a heat pump in Sacramento in 2026?
SMUD currently lists $3,000 for a variable-stage heat pump and $2,000 for a two-stage unit replacing a gas furnace, plus up to $2,000 toward a panel upgrade. Roseville Electric has its own program. The federal 25C tax credit ended for installations after December 31, 2025.
Should I replace a working furnace with a heat pump?
Usually not. Replace equipment when it is failing, and choose the heat pump at that point. The exception is a home where both the furnace and the air conditioner are old, in which case one heat pump replacing both can make sense before either fully fails.
Does a heat pump cost more to run than a gas furnace?
It moves the cost from the gas bill to the electric bill. In most Sacramento-area homes replacing an older furnace, the combined bill comes down, more so with sealed ducts. We estimate from your actual gas bills rather than promising a figure.
What is a dual-fuel system?
A heat pump paired with a gas furnace. The heat pump runs in mild weather and the furnace takes over on the coldest nights. In Sacramento that is a few nights a year. It costs more and qualifies for fewer rebates, but it suits homeowners who want efficiency with a gas backup.