Furnace Installation
FURNACE INSTALLATION IN SALT LAKE CITY — DONE IN A DAY
Replace an aging gas furnace with a properly sized 95% AFUE unit. Permit-pulled, Manual J load calc, 10-year parts and labor warranty, financing available. Most installs finish same day.

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Utah plumbing contractor
5 Utah counties
50+ cities served
Flat-rate pricing
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Overview
What a real furnace install looks like in Utah
Swapping a 17-year-old 80% AFUE furnace for a new 95%+ high-efficiency unit cuts Utah winter gas bills 15 to 25%, takes one working day, and buys you another 15 to 20 years of reliable heat. The actual install is the easy part. Doing it correctly — proper load calculation, right-sized equipment, sealed supply plenum, new flue, condensate routed safely, permit pulled — separates a ten-year install from a two-winter call-back.
Most homes on the Wasatch Front were built with oversized furnaces. The original builder sized for peak load plus a generous safety factor, which meant the system short-cycled on average days and wasted gas running full blast for five minutes at a time. When we replace, we do a real Manual J heat-loss calculation for your home's envelope, insulation, window area, and exposure. Nine times out of ten the right replacement is one half-ton smaller than what you had. Smaller, modulating units run longer cycles at lower burn rates, keep temperatures steadier, and save real money.
What gets installed
A modern 95%+ AFUE condensing furnace vents through PVC (not metal flue), pulls combustion air from outside, and condenses the exhaust to extract nearly all of the heat. That condensate has to drain somewhere — tied into an existing drain, pumped to a floor drain, or routed outside with freeze protection in Utah climates. If we're replacing an 80% atmospheric-vent unit, the existing metal flue usually can't be reused because your water heater can no longer pull enough draft on its own. We'll re-line the chimney or convert the water heater's venting as part of the job.
The components that matter
- Variable-speed ECM blower — quieter, better airflow distribution, 30-50% less electricity than old PSC motors
- Two-stage or modulating burner — runs at 40-60% output on mild days, full output when it's 8°F, no more short cycling
- Sealed combustion — pulls air from outdoors, not from conditioned basement space
- Stainless heat exchanger — 20-year design life in Utah's thermal cycling
- Communicating controls (optional) — if you're also upgrading thermostat and AC, fully communicating systems modulate together
Brands we install
Trane XR, XL, and XV series. Lennox Merit and Signature. Carrier Performance and Infinity. Rheem Classic Plus and Prestige. Rheem and Trane own most of the Wasatch Front install market and have the best parts availability at Utah supply houses. Factory-trained on all four. We'll quote two to three brand options at different price points — the "best value" unit for your home isn't always the top-tier model.
Install day
One tech crew, typically two people, 6 to 9 hours on site. Old unit pulled and hauled out. New unit set on a fresh pad, leveled, connected to gas, electrical, and the existing ductwork (or modified ductwork if the plenum is wrong). PVC vent and intake cored through the rim joist or exterior wall. Condensate drain routed and tested. Thermostat reconfigured or upgraded. Combustion analyzer run before the final wipe-down — CO, O2, flue temp, flame rectification all documented. Permit inspection usually happens within 5 business days; we're there for the inspection.
Warranty and financing
Factory parts warranty is 10 years on every major component with registration (which we handle). Our labor warranty matches — 10 years on the install workmanship. Financing is available: 0% for 12 months on approved credit for standard installs, 24 to 60 month plans for larger jobs. Quality Service Club HVAC members get 15% off accessories (humidifier, media filter, zoning) added at install, plus the first year of maintenance included.
Honest pricing
A standard 95% AFUE single-stage furnace, properly installed with permit and PVC venting, runs $5,200 to $7,800 in Salt Lake County. Two-stage units with ECM blowers move to $6,500 to $9,200. Fully modulating 97%+ AFUE units with communicating controls run $8,500 to $12,500. Anyone quoting $3,500 for a "full install" is skipping the permit, reusing bad ductwork, or using a non-branded unit that'll fail inspection and die early. We've seen that show up on replacement calls many times.
Free quote
Get a real furnace install quote
Tell us about your home. We'll come measure, run the Manual J, and price two to three options.
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New high-efficiency furnace install
95% AFUE or higher. One per household. Must mention at booking.
Expires 12/31/2026
0%
Financing for 12 months OAC
On approved credit. Standard residential installs. Ask about longer terms.
Expires 12/31/2026
Mention coupon when booking. One offer per household.
Warning signs
Signs It's Time to Replace, Not Repair
Repair-vs-replace math isn't about age alone. These are the real signals.
Unit is 15+ years old and needs a repair over $800
Gas bill keeps climbing even with the same thermostat habits
Rooms are unevenly heated — some 74°F, some 64°F
Short cycling — runs 2-4 minutes then shuts off repeatedly
Cracked heat exchanger confirmed on inspection
Rust on the burners or inside the combustion chamber
Yellow flame color, soot buildup, or sooty smell
CO alarm triggered near the furnace
Repair history shows 3+ calls in the last 2 winters
Current unit is 80% AFUE or lower (anything pre-2007)

Done in a day
New high-efficiency furnace, installed and inspected.
Right-sized with a real Manual J calc. Permit pulled, 10-year warranty, financing available. Most replacements finish the same day we start.
Parts + labor
10yr
Across Salt Lake, Utah, Davis, Weber, and Tooele counties.
The Process
How Our Install Day Runs

On the truck
Cable machine, jetter, and pipe camera — every call.
In-home load calc and quote
Tech measures the envelope, counts registers, checks insulation and window area, looks at current duct sizing. Manual J heat-loss calc done before we size the unit. Two to three brand options quoted.
Permit pulled
Salt Lake County requires a mechanical permit for any furnace replacement. We pull it in your name, handle the paperwork, and schedule the inspection. Uninspected installs can become an insurance issue.
Old unit removed, pad prepped
Morning of install. Gas and power locked out, old unit disconnected and carted out. Pad cleaned, leveled, insulated for cold-floor protection.
New unit set and connected
Furnace positioned, leveled, strapped for earthquake code (Utah seismic zone). Gas line pressure-tested. Electrical tied to dedicated circuit. PVC vent and intake cored and sealed. Condensate drain routed with freeze protection.
Combustion analyzer, walk-through, registration
CO, O2, flue temp, flame rectification measured and logged before we leave. Thermostat configured. Homeowner walk-through covers filter changes, annual maintenance, error codes. Warranty registered with the factory that afternoon.
Pricing
Furnace Installation Cost in Salt Lake City
Flat-rate, quoted after load calc. Permit and haul-away included. Financing available OAC.
| Service | Low | High | Member price | Notes |
|---|---|---|---|---|
| 95% AFUE single-stage furnace install | $5,200 | $7,800 | $4,420– $6,630 15% off | Standard replacement, existing ductwork reused |
| 96% AFUE two-stage furnace with ECM blower | $6,500 | $9,200 | $5,525– $7,820 15% off | Best value for most Utah homes |
| 97%+ AFUE modulating furnace with communicating controls | $8,500 | $12,500 | $7,225– $10,625 15% off | Paired with smart thermostat, quietest option |
| Ductwork modification (if required) | $485 | $1,850 | $412– $1,573 15% off | Plenum resize, return air addition, zoning |
| Chimney re-line (when 80% going to 95%) | $685 | $1,450 | $582– $1,233 15% off | Required when water heater venting changes |
| Condensate pump (if no gravity drain available) | $285 | $485 | $242– $412 15% off | Common in slab-on-grade installs |
| Whole-home humidifier add-on | $685 | $1,250 | $582– $1,063 15% off | Aprilaire 600 or equivalent, installed at furnace |
| Media filter cabinet upgrade | $385 | $685 | $327– $582 15% off | 4-inch pleated media vs 1-inch panel |
Member pricing reflects the Quality Service Club 15% repair discount. Service call fees are separate.
Pricing reflects 2026 residential Salt Lake County work. Commercial RTU and large-tonnage installs quoted separately.
Quality Service Club
Skip the bill. Skip the line.
For $79 a year, members get 15% off every repair, priority dispatch on every call, and a free annual drain and plumbing inspection — the same stuff we'd charge $195 for on a cold call.
- 15% off repairs
- Priority dispatch
- Annual inspection
- 24/7 service access
- $25 referral bonus
- Parts + labor warranty
Plumbing
$79/year
- 15% off all plumbing repairs
- Priority dispatch — skip the line
- Annual drain piping inspection
- Full home water-supply inspection
- Tag on your emergency shut-off
- $25 referral bonus
HVAC (1 unit)
$199/year
- 15% off HVAC repairs
- Priority dispatch on furnace or AC calls
- Annual furnace + AC safety inspection
- Thermostat calibration and battery swap
- Outdoor condenser cleaning check
Plumbing + HVAC
$258/year
- Everything in both plans
- Whole-home annual inspection
- 15% off every service we offer
- Priority dispatch across plumbing and HVAC
Questions? Talk to a real human — (801) 341-4222
Cancel anytime. 1-year minimum.
Compare
80% AFUE vs 95% AFUE vs 97% Modulating — Which One Is Actually Right?
The top-tier furnace isn't always the right pick. Here's how they stack up for real Utah homes.
| Feature | 80% AFUE (legacy) | 95% AFUE Single/Two-Stage | 97%+ Modulating |
|---|---|---|---|
| Installed price range | $3,800 – $5,200 (rarely installed new) | $5,200 – $9,200 | $8,500 – $12,500 |
| Annual gas bill vs old 80% | Same as existing | 15–20% lower | 20–25% lower |
| Venting | Metal flue, atmospheric draft | PVC, sealed combustion | PVC, sealed combustion |
| Blower motor | PSC (older, loud, uses more electric) | ECM variable-speed | ECM variable-speed (full modulation) |
| Comfort — temperature swing | +/- 3°F typical | +/- 1.5°F | +/- 0.5°F, near-constant |
| Best for | Rental property, short-term hold, tight budget | Primary residence, best cost/benefit | Long-term hold, high comfort priority |
| Warranty | 10-year parts | 10-year parts + labor (ours) | 10-year parts + labor (ours) |
| Utah rebates/tax credits | None | Dominion Energy $300–$450 rebate | Dominion Energy + federal 25C tax credit |
FAQ
Furnace Installation FAQs
A properly installed 95% AFUE single-stage unit runs $5,200 to $7,800. Two-stage with ECM blower is $6,500 to $9,200. Modulating 97%+ AFUE with communicating controls runs $8,500 to $12,500. Pricing includes permit, haul-away of the old unit, 10-year parts and labor warranty, and combustion analyzer documentation. Ductwork modifications are separate if the existing plenum is wrong.
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Dual-fuel heat pumps — electric cooling with gas furnace backup.

AC Installation
Replace AC and furnace together for labor savings.
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Burst pipe, no heat, AC down? Real plumbers pick up — no answering machines. Valley Plumbing serves Salt Lake City and surrounding areas any time, day or night.
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