Salt Lake Furnace Repair · Salt Lake County
Replacing a furnace in Salt Lake: what it costs and what to ask
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Short answer: A new gas furnace usually runs $3,800 to $10,000 installed, and about $7,000 on average for a 1,600 to 2,000 square foot home (Angi, 2026). In Salt Lake, make sure the quote accounts for elevation, and check the 2026 Enbridge Gas ThermWise rebate ($300 or $350 for qualifying high-efficiency furnaces). There’s no federal tax credit for furnaces installed after 2025. Want a local quote to check against these numbers? Send a request and one local heating company will price it for your house.
What drives the price
| Item | Typical range | Source |
|---|---|---|
| Gas furnace, installed | $3,800 to $10,000 | Angi gas furnace guide |
| Labor | $500 to $2,000 | Angi gas furnace guide |
| Permits and inspection | $400 to $1,500 | Angi |
| Old furnace removal | $60 to $500 | Angi |
| New ductwork, if needed | $1,500 to $7,000 | Angi gas furnace guide |
Altitude: the part out-of-state advice skips
City reference points in the valley run from about 4,265 feet (Salt Lake City) to about 4,465 feet (Sandy), and bench neighborhoods sit higher. The National Fuel Gas Code (NFPA 54) says a gas appliance’s input rating is used as-is up to 2,000 feet. Above that, input is reduced by 4% for each 1,000 feet above sea level, or by another method the local code official or the manufacturer’s instructions allow. At 4,265 feet that works out to roughly 17% less input than the label, and at 4,465 feet roughly 18%. Ask every installer:
- How did you account for altitude in sizing?
- Does this model need a high-altitude kit or orifice change here, and is it in the price?
- Will you check the gas input after install?
Get a load calculation
Size should come from a room-by-room load calculation (insulation, windows, square footage), not from the old furnace’s label. An oversized furnace can short-cycle, and an undersized one runs nonstop on the coldest nights.
2026 ThermWise rebates (Enbridge Gas, Utah)
| Equipment | Requirement | Rebate |
|---|---|---|
| Gas furnace | AFUE 95% to 97.4% | $300 |
| Gas furnace | AFUE 97.5% or higher with ECM | $350 |
| Dual-fuel system (heat pump plus gas backup) | ENERGY STAR heat pump and 95%+ gas backup, tiers vary | $700 to $1,200 |
Existing homes only, with an active Enbridge Gas account, and the request has to be postmarked within 6 months of install. Enbridge says rebates can change with 30 days’ notice, so check ThermWise before you buy.
No federal credit. The IRS confirms the 25C home improvement credit isn’t allowed for property placed in service after December 31, 2025. Some cost guides still describe it, so don’t count it in your budget.
How to check a quote
Whether you get one quote or several, check each one for the same items: furnace model and AFUE, altitude setup, venting changes, permit, haul-away, ductwork, and warranty on parts and labor. Angi notes most new furnaces carry a 10-year limited parts warranty and a 20-year heat exchanger warranty, so ask what labor coverage the installer adds.
Fair questions
Do I have to replace it now? Not always. If it still runs safely, a repair can buy time to collect quotes. A cracked heat exchanger is different: that’s a safety issue.
Is a 95%+ furnace worth it here? Ask each installer for the yearly gas cost difference for your house. Only 95%+ models qualify for the ThermWise furnace rebate.
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Sources for this page
- angi.com: gas furnace installed $3,800 to $10,000, about $7,000 average for 1,600 to 2,000 sq ft, labor $500 to $2,000, ductwork $1,500 to $7,000, removal $60 to $500, warranty norms (Angi, updated Jul 8, 2026). Note: this Angi page still describes a federal tax credit; the IRS source below supersedes it.
- angi.com: natural gas furnace installed $3,800 to $10,000, permits $400 to $1,500 (Angi, updated Sep 8, 2026).
- up.codes: NFPA 54 high-altitude input reduction rule.
- extension.usu.edu: city elevations (Salt Lake City 4,265 ft, Murray 4,301 ft, Riverton 4,436 ft, Sandy 4,465 ft (USGS GNIS reference points)).
- enbridgegas.com: 2026 furnace and dual-fuel rebate amounts, 6-month postmark rule.
- enbridgegas.com: 2026 HVAC application terms (existing homes only, active Enbridge account, rebates can change with 30 days’ notice).
- irs.gov: 25C credit ended for property placed in service after Dec 31, 2025.