Quick answer: Most US homeowners pay roughly $4,000 to $10,000 for a furnace replacement installed, with typical gas furnace jobs landing around $5,000 to $8,000. Electric furnaces often run less up front, while heat pumps cost more but can cut operating costs. Your final price depends on fuel type, size, efficiency, ductwork condition and local labor rates (all figures here are estimates, not quotes).
Key takeaways
- Typical installed range: about $4,000 to $10,000, with high-efficiency or complex jobs reaching $12,000 or more.
- Gas furnaces are the most common choice; electric costs less to buy but often more to run; heat pumps cost the most up front.
- Higher AFUE efficiency raises the purchase price but can lower yearly fuel bills.
- Ductwork repairs, venting changes and permits are the most common surprise add-ons.
- Rebates, tax credits and financing can meaningfully shrink your out-of-pocket cost.
If your furnace is failing, you need real numbers, not vague ranges. This guide breaks down furnace replacement cost by fuel type, explains what drives the price, and shows where you can save. Want pricing for your own home? You can request a free, no-obligation quote using the form on this page.
Furnace Replacement Cost by Type: Gas vs Electric vs Heat Pump
The system you choose is the biggest single factor in your total. Here are typical installed estimates for a mid-size home:
- Gas furnace (80% AFUE): about $3,800 to $6,500 installed.
- Gas furnace (90% to 98% AFUE): about $5,000 to $9,500 installed.
- Electric furnace: about $2,500 to $6,000 installed.
- Oil furnace: about $5,500 to $10,000 installed, common in parts of the Northeast.
- Heat pump (air-source): about $5,500 to $12,000 installed, depending on size and whether it is a ducted or dual-fuel setup.
Gas furnaces
Gas remains the most popular choice where natural gas is available, because it heats quickly and fuel is often cheaper per unit of heat than electricity. Propane furnaces cost about the same to install but typically cost more to operate.
Electric furnaces
Electric units are simple and cheaper to install, with no venting or gas line required. The tradeoff is higher monthly bills in most regions, since electric resistance heat is less efficient than a heat pump.
Heat pumps
A heat pump heats and cools, so it may replace both your furnace and air conditioner. If your AC is also aging, compare notes with our guide to AC replacement cost for central air and heat pumps. A planned guide on heat pump cost will go deeper on this option.
Furnace Efficiency Ratings: What AFUE Means for Your Price
Efficiency is measured by AFUE (Annual Fuel Utilization Efficiency). An AFUE of 80% means about 80 cents of every fuel dollar becomes heat; the rest exits through the flue.
- 80% AFUE: the standard, lower-cost option.
- 90% to 98% AFUE: condensing models that capture more heat and cost more up front.
- Single-stage, two-stage and modulating: more stages mean steadier temperatures and quieter operation, at a higher price.
- Variable-speed blower: improves comfort and airflow and can add several hundred dollars.
Moving from 80% to 96% AFUE can add roughly $1,000 to $3,000 to the project. Whether it pays back depends on your climate, fuel prices and how many winters you plan to stay. In cold regions with long heating seasons, the payback is usually faster.
Pro tip: Ask every contractor to quote at least two efficiency levels side by side. Seeing the price gap next to the estimated yearly fuel savings makes the decision much easier.
A higher AFUE rating raises the sticker price, but a cold climate can shorten the payback considerably.
What Affects Furnace Installation Cost
Two homes can buy the same furnace and pay very different totals. These are the factors that move the number most:
- Furnace size (BTU output). Bigger homes need bigger units. A proper load calculation (often called a Manual J) matters more than rules of thumb. Oversized furnaces cycle on and off and wear out sooner.
- Brand and model line. Budget, mid-range and premium lines can differ by thousands of dollars for similar capacity.
- Ductwork condition. Leaky, undersized or poorly designed ducts may need repair or modification, often $500 to $3,000 or more.
- Venting and gas line changes. Switching to a high-efficiency model usually means PVC venting instead of a metal flue. Moving a unit or running a new gas line adds cost.
- Location. Attic, crawlspace and tight closet installs take more labor than a basement or garage.
- Permits and inspections. Most areas require them; fees vary widely by city and county.
- Removal and disposal. Old unit haul-away is sometimes included, sometimes itemized.
- Local labor rates. Costs run higher in high-cost metros than in lower-cost regions, and emergency winter installs can carry a premium.
Repair or Replace? Signs It Is Time
Replacement usually makes sense when a repair is expensive relative to the age and condition of the unit. Consider replacing if:
- The furnace is roughly 15 to 20 years old (gas units often last about that long with maintenance).
- A repair quote is a large share of replacement cost, such as a cracked heat exchanger.
- Your heating bills keep climbing for the same comfort.
- You have uneven heating, frequent cycling or rising noise.
- Repairs are happening every season.
A cracked heat exchanger can be a safety concern because of carbon monoxide risk. Install working CO detectors on every level and have a qualified technician inspect any furnace you suspect is faulty.
If you have a service plan, check the fine print first. Our breakdown of a home warranty for HVAC shows what is typically covered and what repairs cost without one. Coverage often excludes full replacement of older, poorly maintained units, so read the exclusions closely.
The cheapest furnace is not the one with the lowest quote; it is the one properly sized for your home.
How to Save on Furnace Replacement
You have more levers than you might think:
- Get three quotes. Compare equipment model numbers, not just totals, so you are comparing like with like.
- Replace off-season. Spring and early summer often have more scheduling flexibility and sometimes better pricing than a January emergency.
- Check utility rebates. Many utilities offer rebates on high-efficiency furnaces and heat pumps. Search your utility’s website and the ENERGY STAR rebate finder.
- Look at federal tax credits. Federal incentives for qualifying efficient heat pumps and some other equipment have existed under current law, with caps and eligibility rules that can change. Review the current terms at ENERGY STAR’s federal tax credit page and confirm with a tax professional.
- Seal and insulate first. Better air sealing may let you install a smaller, cheaper unit. See our upcoming guide to home energy efficiency upgrades that save money.
- Maintain it. Annual tune-ups and regular filter changes extend life and protect warranties.
Financing options
If you cannot pay cash, common options include contractor financing (watch for deferred-interest terms), a home equity loan or line of credit, personal loans, and utility or state energy-efficiency loan programs. Compare the total interest, not just the monthly payment, and avoid financing terms you do not fully understand.
Heating and cooling upgrades often arrive together. If you are weighing storm resilience too, a whole house generator can keep a new furnace running during outages, since most furnace blowers need electricity even on gas models. Planning both at once can save on electrical work.
Choosing a Contractor and Reading the Quote
A good quote should list the exact make and model, AFUE rating, labor, permits, disposal, and warranty terms. Before you sign:
- Confirm the contractor is licensed and insured as required in your state.
- Ask whether they performed a load calculation rather than just matching the old unit’s size.
- Request both parts and labor warranty details in writing.
- Get the payment schedule; avoid large deposits far beyond materials cost.
- Ask what is excluded, such as duct repair, thermostat or electrical work.
Also consider what a new system does to your overall home protection. Replacing a furnace is a good time to review your coverage; our guide on what homeowners insurance covers explains how sudden equipment failure and related damage are typically treated, and what usually is not.
Ready to see real pricing for your home? Request your free furnace replacement quote using the form on this page and compare options from vetted providers.
Frequently Asked Questions
How long does a furnace last?
Gas furnaces commonly last around 15 to 20 years with regular maintenance. Electric furnaces can last longer, while heat pumps often fall closer to 10 to 15 years because they run year-round.
How long does installation take?
A straightforward swap typically takes about one day. Jobs involving ductwork changes, new venting or gas line work can take two days or more.
Is a heat pump cheaper to run than a gas furnace?
It depends on local electricity and gas rates and your climate. Heat pumps are very efficient in moderate climates, and cold-climate models have improved, but a gas furnace may still cost less to run where gas is cheap and winters are severe. A local quote with operating-cost estimates helps.
Can I install a furnace myself?
This is not recommended. Gas connections, venting and electrical work involve carbon monoxide and fire risks, and most jurisdictions require licensed installation and permits. Improper work can also void the manufacturer warranty.
Cost figures in this article are general estimates and vary by region, equipment and contractor. Confirm details with licensed professionals before making decisions.
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