Furnace installation done right, before the first hard freeze
Furnace installation is one of those jobs where corners hide for years — until the 15° night they don't. We size the new furnace to your home, vent it to code, dial in the gas pressure, and back the work in writing. Free quotes, three price points, zero pressure.
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Licensed · Bonded · Insured
18 years in Knoxville
When replacement beats another repair
- 15–20+ years old — you're past the design life, and parts get scarce and pricey.
- Cracked heat exchanger — that's a replacement, full stop. It's a carbon monoxide risk, and we'll show you the crack on camera, not ask you to take our word.
- Repair quote over ~40% of replacement cost on an old unit (placeholder rule of thumb).
- Rooms that never warm up, or gas bills that keep climbing — old single-stage furnaces heat unevenly and expensively compared to modern two-stage and modulating systems.
Furnace, heat pump, or both?
In East Tennessee's climate, the answer isn't automatic. Gas furnaces win on the coldest nights; heat pumps win on efficiency the other 90% of winter; dual-fuel systems pair both and switch automatically. We'll walk the options with your actual utility rates — and if you're replacing the cooling side too, a matched system with a new AC installation is usually cheaper than doing them a year apart.
What's in a Carter furnace install
Right-size calculation
An oversized furnace blasts, overshoots, and dies young. We calculate the load and size to it.
Venting and gas done to code
Proper flue sizing, sealed combustion where appropriate, gas pressure verified with a manometer — the details inspections exist for.
Old unit hauled off
Removal, disposal, and a swept floor are included. You get heat, not a mess.
Warranty registered + fall checkup
Manufacturer warranty registered for you, first fall tune-up on us, and ongoing coverage available through the Comfort Club.
Spread the cost with financing from about $79/month (placeholder), keep it healthy with the Comfort Club, and if the old one dies tonight, our heating repair team can usually keep you warm until install day.
Need heating or air help today?
Same-day service across Knoxville and surrounding areas. Real people answer — mon–fri 7am–7pm · 24/7 emergency service.