Furnace Replacement Cost in 2026: What to Budget
Updated 2026-07-02
Replacing a home furnace in the United States costs $2,500 to $7,500 installed in 2026. Most homeowners land between $3,500 and $5,500 for a mid-range gas unit with standard installation. Equipment alone accounts for $1,200 to $4,500 of the total, and labor, permits, and materials make up the rest.
Run your specifics through the furnace replacement cost calculator to get a tailored estimate based on home size, fuel type, and ZIP code.
Our 2026 cost model, at a glance
| National installed range | $2,500 to $7,500 |
| Typical mid-range gas furnace, 2,000 sq ft home | $3,500 to $5,500 |
| Equipment share of total cost | $1,200 to $4,500 |
Cost breakdown by component
| Component | Typical cost range |
|---|---|
| Furnace unit (80% AFUE gas) | $1,200 to $2,200 |
| Furnace unit (96% AFUE gas) | $1,800 to $3,500 |
| Labor and installation | $800 to $2,000 |
| Permit fees | $50 to $400 |
| Duct modifications (if needed) | $200 to $1,500 |
| Disposal of old unit | $50 to $200 |
How much does a new furnace cost for a 2,000 square-foot house?
A 2,000 square-foot home typically needs an 80,000 to 100,000 BTU furnace, adjusted for climate zone, insulation quality, and ceiling height. In 2026, a mid-range 80% AFUE gas furnace installed by a licensed HVAC contractor runs $3,500 to $5,500 for that home size. Upgrading to a 96% AFUE unit adds $600 to $1,200 to the equipment cost and cuts monthly gas bills by 15 to 25 percent compared to an older 60 to 70% efficient furnace. Payback on the efficiency premium typically lands in four to eight years depending on your heating load and local gas rates.
Cost by home size
| Home size | Furnace capacity needed | Installed cost estimate |
|---|---|---|
| Under 1,000 sq ft | 40,000 to 60,000 BTU | $2,500 to $4,000 |
| 1,000 to 1,800 sq ft | 60,000 to 80,000 BTU | $3,000 to $5,000 |
| 1,800 to 2,600 sq ft | 80,000 to 100,000 BTU | $3,500 to $5,500 |
| 2,600 to 3,500 sq ft | 100,000 to 120,000 BTU | $4,500 to $7,000 |
| Over 3,500 sq ft | 120,000 BTU or two units | $6,000 to $10,000+ |
What drives the price up or down
- Furnace size (BTUs): A larger home requires a higher-capacity unit. A 60,000 BTU furnace for a small home costs less than a 120,000 BTU unit for a large two-story house.
- Efficiency rating (AFUE): High-efficiency furnaces (90 to 98% AFUE) cost more upfront but save on monthly gas bills. The premium over an 80% model is typically $400 to $1,200.
- Fuel type: Natural gas is the most common and usually least expensive to operate. Propane and oil systems can cost more to install because of tank or line considerations.
- Labor market: HVAC labor rates vary significantly by region. Contractors in major metro areas charge $75 to $150 per hour compared to $50 to $90 in rural markets.
- Emergency vs. scheduled replacement: Scheduling a replacement before your furnace fails gives you time to shop quotes. Emergency winter installs can add $200 to $600 in rush charges.
- Brand: Carrier, Lennox, and Trane command higher prices than budget brands like Goodman or Ducane, though mid-tier brands like Rheem and American Standard offer solid value.
Is it worth replacing a 30-year-old furnace?
In almost every case, yes. Furnaces built in the 1990s were rarely designed past 60 to 70% AFUE, well below what a modern 96% AFUE unit delivers for the same fuel spend. Swap out a unit that old and expect gas consumption to drop 30 to 40 percent, which on a typical $1,500 annual heating bill works out to $450 to $600 back in your pocket every year. Put that against a $4,500 installed cost and the math clears in eight to ten years. The other reason not to wait: heat exchangers crack with age, and a cracked one lets carbon monoxide into the house. That is a real failure mode, not a sales pitch. Run through the signs you need a new furnace checklist if you are unsure where your unit stands.
FAQs
How much does it cost to replace a furnace in 2026? Most homeowners pay $2,500 to $7,500 installed, with a typical mid-range gas furnace landing between $3,500 and $5,500 for a 2,000 square-foot home.
Is a furnace replacement quote of $8,000 or more too high? It depends on scope. A quote that high can be reasonable if it includes ductwork modifications, a gas line extension, or a high-efficiency unit with new PVC venting. For a standard swap with none of that, ask for an itemized breakdown before agreeing to pay it.
Do federal tax credits lower the cost of a new furnace? Yes. The Inflation Reduction Act offers a 30% tax credit, capped at $600, for qualifying high-efficiency furnaces installed through 2032, and many gas utilities stack a rebate of $50 to $300 on top.
How to save money on a furnace replacement
Getting at least three quotes from licensed HVAC contractors is the most reliable way to reduce what you spend. Variations of $500 to $1,500 for the same scope of work are common. Replacing in the off-season (late spring or early fall) usually means faster scheduling and sometimes lower labor rates. Ask about manufacturer rebates and federal tax credits: the Inflation Reduction Act provides a 30% tax credit (up to $600) for qualifying high-efficiency furnaces installed through 2032. Your gas utility may add a rebate of $50 to $300 for upgrading to a high-efficiency model.
How long does furnace installation take?
A straightforward swap-out takes 4 to 8 hours. Ductwork modifications or gas line work can push the job to a full day or beyond. Plan to be home for the installation and expect the heating system to be offline for the day.
Is it cheaper to repair or replace a furnace?
A common rule of thumb: if a repair would cost more than 50 percent of what a new furnace costs installed, and the unit is over 10 years old, replacement usually wins on financial grounds. Heat exchanger cracks, failed inducer motors, and control board replacements on older units run $600 to $1,500, which is 15 to 40 percent of a new furnace's installed cost. Factor in ongoing efficiency losses and the realistic probability of another failure in the next two to three years. See the furnace lifespan guide to assess where your unit stands.
Bottom line
Budget $2,500 to $7,500 for a furnace replacement in 2026, with most homes landing near $4,000 to $5,500 for a mid-range gas unit. Get at least three quotes from licensed HVAC contractors and ask each one about federal tax credits and utility rebates, which can offset 10 to 20 percent of the upfront cost. Use the furnace replacement cost calculator for a closer estimate based on your specific home and location.
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