Furnace Replacement Cost: Homeowner Pricing Breakdown
A typical furnace replacement cost ranges from $2,800 to $6,800 according to Forbes Home, with This Old House reporting a similar range of $2,825 to $6,846. These figures cover standard residential installations including the heating unit, labor, and basic supplies. Forbes Home notes an overall national average of $4,700, while This Old House places the average total replacement price at $4,771.
Furnace replacement cost breakdown
The overall expense to replace a heating system depends primarily on the fuel source and the physical dimensions of the house. Different research groups track heating equipment pricing across various installation categories. Reviewing published ranges helps establish a realistic budget before requesting bids from contractors featured in hvac cost guides.
| Category | Cost Range | Unit | Source |
|---|---|---|---|
| Electric furnace replacement | $1,800 to $7,300 | installed | Fixr |
| Propane furnace replacement | $3,700 to $14,200 | installed | Fixr |
| Gas furnace installation | $3,800 to $12,000 | installed | HomeGuide |
These published figures reflect complete installations, which combine the equipment purchase with local installation labor. As shown above, electric systems start lower on the pricing spectrum, while fuel systems like gas and propane command higher price points.
Cost by fuel type
Fuel selection plays a central role in equipment pricing. According to HomeGuide, installing a natural gas furnace costs between $3,800 and $12,000. That publication identifies gas units as the most common home heating choice in the country. For homes running on propane, Fixr reports total replacement costs between $3,700 and $14,200 installed, noting that propane units are about twice as expensive as electric models.
Electric heating systems present a lower initial investment. Fixr finds that electric furnace replacements range from $1,800 to $7,300 installed, calling them the most affordable option. HomeGuide shows a slightly narrower range for electric models at $2,500 to $7,000 installed, confirming that electric equipment costs the least up front.
Cost by home size
Fixr reports that replacing a furnace for a 2,000-square-foot house averages between $2,400 and $4,000 installed.
Additional installation costs
Fixr notes that minor repairs or replacements of damaged duct sections cost between $5 and $45 per linear foot. On a broader scale, Forbes Home reports standard duct installation runs from $10 to $20 per linear foot, while Angi reports an average duct replacement price between $376 and $1,072 in St. Louis.
Installing a new system may require running utility lines to the furnace location. Fixr states that running gas or oil lines to the equipment costs $9 to $27 per linear foot. For electric units, Fixr indicates that adding a dedicated 240-volt outlet ranges from $175 to $500, a project detailed in electrical cost guides. Homeowners coordinating heating projects alongside plumbing upgrades can review the water heater replacement cost guide when planning shared mechanical spaces.
Permits and haul-away fees also factor into the final contractor bill. Fixr lists municipal permit fees between $50 and $1,500, whereas Angi reports local permit charges of $250 to $400 in St. Louis. For discarding the replaced unit, HomeGuide places removal and disposal fees at $50 to $200, while Angi reports a range of $60 to $300 in St. Louis.
Labor vs. materials
Angi notes that contractor labor for a new furnace installation typically spans from $1,000 to $4,000. For hourly billing, Fixr reports that HVAC technicians charge rates ranging from $75 to $150 per hour.
The remaining balance of the project invoice pays for the heating equipment, transition fittings, and duct connections.
DIY vs. hiring a pro
Replacing a heating system is not a recommended task for uncertified homeowners. For natural gas piping and dedicated 240-volt electrical connections, hiring a licensed pro and pulling a municipal permit may be required by local law. Working with gas lines carries explosion and asphyxiation hazards, while faulty electrical wiring creates severe fire dangers.
Improper venting of combustion gases can allow dangerous carbon monoxide to enter the living space.
Ways to save
- Compare multiple contractor estimates: Solicit several written quotes from licensed HVAC professionals to compare equipment brands, labor warranties, and project scopes.
- Plan before a breakdown: Fixr notes most furnace replacements take 4 to 10 hours, so a scheduled job is easier to compare across bids than an emergency one.
- Maintain existing ductwork: Inspect and seal functional duct runs to avoid paying for new duct replacements where minor repairs suffice.
- Check for utility rebates: Inquire with local power companies and municipal gas suppliers about equipment efficiency rebates on qualifying furnace replacements.
How to get an accurate quote
Obtaining a reliable estimate requires an in-home evaluation rather than a rough phone estimate. Technicians need to inspect existing ductwork dimensions, electrical panel capacity, and flue venting pathways to calculate accurate heating requirements. Homeowners should verify that contractors perform formal load calculations rather than simply duplicating the capacity of the outgoing unit.
Every formal quote should provide an itemized list detailing equipment model numbers, labor costs, permit fees, and warranty coverage terms. Confirm that the estimate explicitly notes whether old furnace haul-away and disposal charges are included. Homeowners should also ask for proof of active contractor licensing and general liability insurance before signing any contract.
What changes the price
- Heating capacity and equipment size needed for the living space
- Fuel type, such as natural gas, propane, or electric power
- Existing ductwork condition and required repair or installation
- Ventilation, gas line additions, or dedicated electrical wiring
- Local labor rates, permit fees, and disposal charges for the old unit
Frequently asked questions
Can a homeowner replace a residential furnace as a DIY project?
Furnace replacement involves fuel lines, high-voltage electrical connections, and venting that carry serious fire and carbon monoxide hazards.
Which furnace fuel type costs the least to install?
Fixr notes that electric furnaces are the most affordable heating option to install up front. However, HomeGuide states that natural gas models remain the most popular heating system across the country.
Do I need a building permit to replace a furnace?
A licensed HVAC contractor will typically secure the required permits and schedule the final city inspection.
What should be included in a formal furnace replacement estimate?
A detailed written quote should itemize the new furnace model, equipment heating capacity, labor charges, and municipal permit fees. It should also clarify whether haul-away and disposal of the old heating equipment are covered in the total price.
Sources
Related cost guides
Figures are estimates based on the sources above and vary by region, home and contractor. Get at least three written quotes before you hire. See our disclaimer and how we research.