Gas furnaces cost 2–3 times more to install than electric models, but they typically cost 40–60% less per year to operate in most U.S. climates. Which system saves you more money depends on your local utility rates, whether you already have a gas line, and how many winters you plan to stay in the home. This guide gives you the actual numbers so you can make the right call before getting quotes.
For a broader look at what you will pay to replace the full heating and cooling system, see our furnace replacement cost guide. If you are also comparing heat pumps, we cover those separately in the section below.
How Much Does a Gas Furnace Replacement Cost in 2026?
A gas furnace replacement runs $4,000–$9,000 fully installed in 2026, depending on efficiency rating, BTU capacity, and local labor rates. Here is what drives that number:
For state-specific pricing with verified rebate data, see our HVAC costs in Oklahoma guide, which covers OG&E and ONG utility rebates currently available statewide.
- Equipment (80% AFUE standard efficiency): $2,500–$5,000 for the unit
- Equipment (96% AFUE high efficiency): $3,500–$6,000 for the unit
- Labor and installation: $1,500–$3,000 (includes gas line inspection, flue venting, thermostat wiring)
- Total installed range: $4,000–$9,000 depending on efficiency tier
High-efficiency 96% AFUE units add $500–$1,500 to the equipment cost upfront but can cut annual fuel bills by 15–20% compared to a standard 80% unit. In northern climates where the furnace runs 2,000+ hours per year, the payback period is typically 4–7 years.
Gas installations cost more than electric for two reasons: the system requires a vented exhaust (combustion flue or PVC pipe for high-efficiency units), and contractors must inspect or extend the gas line during installation. If your home does not have an existing gas stub at the furnace location, adding one costs an additional $200–$800.
How Much Does an Electric Furnace Replacement Cost in 2026?
An electric furnace replacement costs $1,600–$4,500 fully installed in 2026. The lower upfront cost comes from simpler engineering: no combustion chamber, no gas valve, no flue venting. The unit is essentially a powerful electric heating element with a blower.
| Home Size | Unit Cost Only | Unit + Installation |
|---|---|---|
| 1,200 sq ft | $400–$600 | $1,600–$3,000 |
| 1,500 sq ft | $500–$700 | $2,000–$3,200 |
| 2,000 sq ft | $600–$850 | $2,400–$3,800 |
| 2,500 sq ft | $700–$1,000 | $3,000–$4,500 |
One hidden cost to watch for: if your existing electrical panel does not have capacity for a high-draw electric furnace (typically 10–25 kW), you may need a panel upgrade costing $500–$2,000. Ask your HVAC contractor to confirm panel capacity before accepting a quote that assumes no electrical work is needed.
Installation labor for electric furnaces typically runs $500–$2,000, compared to $1,500–$3,000 for gas. No flue to run, no gas line to tie into, and no combustion safety checks. That savings in labor is the main reason electric systems look so attractive on the first invoice.
Gas vs Electric Furnace Cost: Side-by-Side Comparison
The table below compares upfront, annual, and 10-year total costs for a 2,000 sq ft home using national average utility rates (EIA 2025: natural gas $1.20/therm, electricity $0.16/kWh).
| Cost Category | Gas Furnace (80% AFUE) | Gas Furnace (96% AFUE) | Electric Furnace |
|---|---|---|---|
| Equipment cost | $2,500–$5,000 | $3,500–$6,000 | $700–$2,500 |
| Installation cost | $1,500–$3,000 | $1,500–$3,000 | $500–$2,000 |
| Total installed cost | $4,000–$8,000 | $5,000–$9,000 | $1,600–$4,500 |
| Annual operating cost | $700–$1,200 | $560–$960 | $1,200–$2,400 |
| 10-year total cost | $11,000–$20,000 | $10,600–$18,600 | $13,600–$28,500 |
The key takeaway: electric wins on day one, gas wins over time. At average national utility rates, a gas furnace reaches its crossover point (where lower operating costs offset the higher install price) in 3–5 years compared to an electric unit.
Is Gas or Electric Furnace Cheaper to Operate Each Month?
Gas costs 40–60% less per year to heat a typical home than electric resistance heating at national average utility rates. The U.S. Energy Information Administration reports the average residential natural gas rate at $1.20/therm and the average electricity rate at $0.16/kWh as of late 2025.
Here is what that math looks like for a 2,000 sq ft home in a cold climate (Chicago, Minneapolis, or similar):
- Annual heating load: roughly 900 therms of gas equivalent
- Gas furnace (80% AFUE): 900 therms / 0.80 efficiency = 1,125 therms consumed x $1.20 = $1,350/year
- Gas furnace (96% AFUE): 900 therms / 0.96 = 937 therms x $1.20 = $1,125/year
- Electric furnace (100% efficient): 900 therms x 29.3 kWh/therm = 26,370 kWh x $0.16 = $4,219/year
In this northern climate example, gas saves roughly $2,900–$3,100 per year in fuel costs. Over 10 years, that gap swamps the higher upfront installation cost. The calculation shifts for milder climates: a home in Atlanta or Orlando might use 400 therms of heating equivalent, cutting the annual savings gap to $1,200–$1,400 instead of $3,000.
One important caveat: natural gas prices can swing 30–50% year to year (the 2021–2022 spike pushed gas costs to near electric parity in some regions for a full heating season). If you are in a market where gas prices are historically volatile, the operating cost advantage shrinks. Check your state’s average utility rates at the EIA state electricity profiles and gas rates at the EIA natural gas residential prices page.
For a third option that often beats both furnace types in mild to moderate climates, see our heat pump replacement cost guide. Heat pumps move heat rather than generate it, delivering 200–400% efficiency at moderate outdoor temperatures.
How Much Does It Cost to Convert from Gas to Electric (or Electric to Gas)?
The conversion cost depends on which direction you are switching and what infrastructure already exists in your home.
Gas to electric conversion: Usually $0–$800 in extra costs. You cap or abandon the gas stub at the furnace location (typically $100–$300 for a plumber to do this properly), and in some cases you will need an electrical panel upgrade if your current panel is already near capacity. If the panel is fine, the conversion premium is minimal.
Electric to gas conversion: More expensive, ranging from $500–$2,500 in added costs. Running a new gas line from the street or from an existing stub elsewhere in the house is the main expense. A licensed plumber or HVAC contractor must pull permits and pressure-test the new line before the furnace can be commissioned.
One thing to know: most homeowners who say they are “converting from gas to electric” are actually going gas furnace to heat pump, not gas furnace to electric resistance furnace. A heat pump uses electricity but operates very differently from an electric furnace, and it qualifies for federal tax credits that a plain electric furnace does not. See the HVAC efficiency and cost comparison for details on how efficiency ratings affect total cost.
Should You Replace Your Gas Furnace with an Electric Furnace?
The honest answer depends on three factors: your climate zone, your current fuel rates, and whether you plan to stay in the home long enough for operating cost differences to matter.
North and Midwest climates (heating-dominant): Gas almost always wins on 10-year total cost. The annual savings from lower gas operating costs exceed the upfront cost gap within 3–5 years for most homeowners. Unless you have a specific reason to avoid gas (no gas line, electrification goals, very low electric rates), replacing gas with gas is the default right answer in cold climates.
South and mild climates (heating-light): Electric furnaces are more competitive here because homes heat less often. But even in Atlanta or Houston, a heat pump is almost always a better choice than an electric resistance furnace. Heat pumps also cool your home in summer, so you are not paying twice for HVAC equipment. Electric resistance furnaces make the most sense as backup heat strips in a dual-fuel or heat pump system, not as the primary heating source. Oklahoma homeowners in Climate Zone 3A, for example, typically run dual-fuel hybrid systems to capture gas savings in winter without sacrificing summer efficiency. See our Oklahoma HVAC replacement cost guide for statewide cost ranges and rebate details.
Rural homes without gas service: Electric furnace or propane furnace are the realistic options. If you are already on electric and your heating load is modest, an electric furnace or heat pump is a practical choice. If you have propane, a propane furnace operates similarly to natural gas with slightly higher fuel costs.
One efficiency note: electric furnaces are technically 100% efficient (all electricity converts to heat), while even the best gas furnaces top out at 98% AFUE. But “efficiency” in this context is almost irrelevant when the underlying fuel cost per BTU is 3–4 times higher for electricity than gas. A 100% efficient system using expensive fuel still loses to a 96% efficient system using cheap fuel.
For context on how replacing just the furnace compares to replacing the full system, see our guide on replacing AC and furnace at the same time. There are often cost savings when bundling both replacements into a single project.
Frequently Asked Questions
Is a gas furnace cheaper than an electric furnace upfront?
No. Electric furnaces cost less to buy and install. A typical electric furnace runs $1,600–$4,500 fully installed versus $4,000–$9,000 for a gas furnace. Gas costs more upfront because of venting requirements, gas line work, and more complex combustion components.
Which furnace type is cheaper to run each month?
Gas furnaces are cheaper to operate in most U.S. climates. At national average utility rates, gas heating costs roughly $700–$1,350 per year for a 2,000 sq ft home versus $1,200–$4,200 for electric resistance heating. The gap is largest in cold northern climates with long heating seasons. In mild southern climates, the difference is smaller, and a heat pump may be the most cost-effective option.
What is the downside of an electric furnace?
The main downside is operating cost. Electric resistance heat is 3–4 times more expensive per BTU than natural gas at average national rates. Other downsides include:
- Potential need for electrical panel upgrade ($500–$2,000) if panel is near capacity
- No eligibility for federal heat pump tax credits (electric resistance furnaces do not qualify)
- Not ideal as a primary heat source in cold climates where heating bills will be high
How much does it cost to switch from gas to electric heat?
Switching from a gas furnace to an electric furnace typically adds $0–$800 in conversion costs on top of the standard electric furnace installation price. You pay to cap the gas line ($100–$300) and possibly upgrade the electrical panel if needed. Switching the other direction (electric to gas) costs more: $500–$2,500 to run a new gas line and pull permits.
Is a heat pump better than an electric furnace for heating?
Yes, in most cases. A heat pump delivers 200–400% efficiency at moderate temperatures, meaning it produces 2–4 units of heat energy for every 1 unit of electricity consumed. An electric resistance furnace delivers exactly 100% efficiency. Heat pumps also provide summer cooling, so one system handles both seasons. The main exception is extreme cold climates (sustained below -10°F), where heat pump efficiency drops and a supplemental heat strip or dual-fuel backup may be needed.
Does a gas furnace add value to a home compared to electric?
In most northern markets, yes. Buyers in cold climates expect gas heat and may discount an offer or ask for credits on a home with electric resistance heating. In southern markets, the difference is less significant. Heat pumps are generally viewed neutrally or positively by buyers in all markets. If you are also evaluating the cost of adding or replacing central air conditioning, see our central air installation cost guide for the full breakdown including ductwork scenarios.