A new gas heater costs about $3,500-$7,500 installed for a typical U.S. home, with an average near $5,500. The final gas heater price depends on heating capacity, equipment efficiency, venting, ductwork, labor rates, and whether an old unit must be removed.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed gas furnace | $3,500 | $5,500 | $12,000 | Common residential replacement |
| Equipment only | $1,200 | $2,800 | $6,000 | Before installation and accessories |
| Installation labor | $1,000 | $2,000 | $4,000 | More for difficult or extensive work |
| Typical equipment capacity | 40,000 BTU | 80,000 BTU | 120,000 BTU | Must be sized for the home |
Installed gas furnace prices by home size
For a straightforward replacement, homeowners commonly pay $3,500-$7,500 for a standard-efficiency gas furnace, including basic installation and removal of the old unit. A high-efficiency model or a job involving venting, gas-line, or duct changes can reach $8,000-$12,000 or more. Equipment alone is often $1,200-$6,000, depending on capacity and features.
Installed pricing averages around $45-$90 per 1,000 BTU of rated input when comparing similar replacement jobs, but this is only a rough comparison, not a sizing method. Assumptions: existing ductwork and gas service are usable, access is typical, and prices reflect broad U.S. residential rates. A properly sized replacement with no major code or duct upgrades often lands near $4,500-$7,000.
What furnace labor, venting, and equipment add to the quote
Quotes bundle several expenses, and the same equipment price can produce different totals when installation conditions vary. The table shows common ranges for a standard replacement; costs may overlap when a contractor prices a complete package.
| Quote component | Typical range | Common pricing basis | What changes it |
|---|---|---|---|
| Gas furnace equipment | $1,200-$6,000 | $1,500-$4,500 for many homes | Capacity, efficiency, and brand tier |
| Removal and installation labor | $1,000-$4,000 | $75-$150 per hour | Access, crew size, and job complexity |
| Venting and exhaust materials | $200-$1,500 | $10-$30 per linear foot for some vent pipe | New route, vent type, and code needs |
| Permit and inspection | $50-$500 | Local fee | City or county requirements |
| Disposal and small accessories | $100-$600 | Per project | Old-unit hauling, filter rack, or condensate parts |
Labor depends on the work rather than just the furnace’s listed price. A typical swap may take 6-10 hours, while conversion to a different venting arrangement can extend the work. Ask whether the quote includes startup testing, permit fees, disposal, and all required vent connections.
BTU capacity and efficiency can shift the furnace price
Capacity is a major cost and performance variable. Residential furnaces commonly range from about 40,000 to 120,000 BTU per hour, but the correct size depends on insulation, climate, windows, and the home’s heat loss. Moving from a smaller unit to a larger capacity can add roughly $300-$1,200 to equipment cost, though the price depends on model and availability.
Annual fuel utilization efficiency, or AFUE, also affects upfront pricing. A basic 80% AFUE model may cost $1,200-$3,000 for equipment, while a 90%-plus AFUE furnace often costs $2,500-$6,000. High-efficiency models may need PVC venting and a condensate drain; if those are absent, installation can add $500-$2,000. Do not pay for extra capacity without a load calculation showing that the home needs it.
How much do gas furnace prices vary by region?
Installed quotes in high-cost metro areas and parts of the Northeast or West Coast can run about 10%-25% above national midrange pricing. Rural markets may be 5%-15% lower, though travel charges or limited contractor availability can erase that difference. Local permit rules, climate-driven demand, and the number of qualified installers all affect a quote.
For example, a basic replacement near a $5,500 national average might be quoted at $6,000-$6,900 in a high-cost city or $4,700-$5,300 in a lower-cost market, assuming comparable equipment and scope. Those ranges are directional rather than guarantees; quotes should be compared for matching capacity, AFUE, venting, warranty, and included labor. Regional comparisons are meaningful only when the quoted scope is the same.
When old ductwork or venting raises replacement costs
A like-for-like furnace swap is usually less expensive than a project that changes surrounding systems. Replacing a damaged return-air plenum or modifying a short duct section may add $300-$1,500. Extensive duct repairs or sealing can add $1,000-$5,000, depending on the number of runs and access. New high-efficiency venting may add $500-$2,000 when pipe routing and drainage need work.
Moving the furnace, upgrading an undersized gas line, or correcting electrical and combustion-air issues can add several hundred to several thousand dollars. Permit and inspection charges vary, and code-required corrections should appear clearly in the estimate. Have contractors identify each proposed change and explain whether it is required for safe operation or an optional improvement.
Three replacement quotes with different job scopes
These examples illustrate how equipment and installation conditions affect totals. They are not fixed national rates, and local bids can differ.
| Example | Equipment and scope | Labor assumption | Estimated total |
|---|---|---|---|
| Basic swap | 60,000 BTU, 80% AFUE; removal included | 2 technicians, 7 hours | $4,000-$5,500 |
| Efficient replacement | 80,000 BTU, 96% AFUE; vent conversion | 2 technicians, 9-11 hours | $6,500-$9,000 |
| Complex installation | 100,000 BTU; vent, gas-line, and duct corrections | 2-3 technicians, 12-16 hours | $9,000-$13,000 |
The equipment capacity in these examples is illustrative; a contractor should calculate the home’s heating load before recommending a model. A higher total should be supported by specific added work, not just a larger equipment label.
Gas furnace replacement versus repair pricing
A service call and repair commonly cost $150-$600, while larger repairs such as a blower motor, control board, or gas valve can run $400-$1,500 or more. Replacing a heat exchanger may cost $1,000-$3,500, making a new furnace worth comparing when the unit is older or has repeated failures.
Repair often costs less when the furnace is relatively new and the fault is isolated. Replacement becomes easier to justify when repair charges approach 30%-50% of a comparable new system, or when the existing unit is near the end of its service life. Compare the written repair diagnosis with a replacement quote that includes equivalent safety checks and warranty terms.
Ways to lower a new gas heater quote
Keeping the furnace in its existing location, retaining usable ducts, and selecting a correctly sized standard-efficiency model can avoid unnecessary work. Get at least three itemized quotes using the same capacity range and AFUE target; compare permit, removal, thermostat, venting, and startup charges rather than the headline total alone.
Schedule replacement before a midwinter breakdown when possible, since urgent service can limit equipment choices and add rush or temporary-heating charges. Ask whether a modest repair can safely extend the existing furnace’s life, and request separate prices for optional upgrades. Control the scope first, then compare equipment tiers and warranty coverage.