- HEP HVAC
- Gas Furnaces

Gas Furnaces
Gas Furnaces | Heat Repair | Heating and Air Conditioning | Signal Mountain
When winter winds whip across Signal Mountain, you don’t have time to wonder if your gas furnace will cooperate. HEP’s certified technicians arrive stocked with genuine parts and a neighborly attitude, quickly diagnosing issues in Lennox, Trane, Carrier, and every brand in between. We respect your schedule, text you en-route, and back our work with clear, upfront pricing—so you can get back to cozy family movie nights instead of stacking extra blankets.
From precision tune-ups to emergency heat repair, our team treats your home like our own, checking carbon-monoxide levels, cleaning burners, and ensuring your system runs safely and efficiently all season long. Pair your furnace service with our air-conditioning expertise for year-round comfort, and discover why HEP has been Signal Mountain’s trusted one-call solution for over two decades.
FAQs
How can I tell whether my gas furnace needs professional repair instead of a simple filter change or thermostat adjustment?
Warning signs that point to the need for professional service include: (1) repeated cycling on and off within a few minutes (short-cycling); (2) unusual odors like burning plastic or sulfur; (3) new noises—rumbling, banging, or screeching—that persist; (4) cold air from the supply vents while the thermostat is calling for heat; (5) a sudden, unexplained rise in your gas bill; or (6) any appearance of the furnace’s burner flame turning yellow instead of steady blue (a possible combustion or carbon-monoxide issue). If you notice any of these symptoms in your Signal Mountain home, shut the system off and call a licensed technician—continuing to run the furnace can worsen the damage and compromise safety.
What unique challenges does Signal Mountain’s climate create for gas furnaces and heat pumps?
Situated on the Cumberland Plateau, Signal Mountain experiences rapid temperature swings and higher-than-average humidity compared with other parts of Hamilton County. The frequent shifts from chilly nights to mild afternoons cause furnaces to cycle more often, accelerating wear on igniters, blower motors, and limit switches. Moist mountain air can also lead to rust in the heat exchanger and condensation in flue piping. An HVAC company familiar with these local conditions will check drainage, venting angles, and combustion-air openings, and may recommend stainless-steel secondary heat exchangers or coated components designed to withstand humid environments.
If my furnace or dual-fuel system stops working on a freezing night, how fast can you get to my Signal Mountain address?
We maintain a dedicated on-call technician for the Plateau area throughout the heating season. Calls received before 8 p.m. typically see a technician on site within 2–4 hours; after-hours or holiday calls are prioritized for no-heat, gas-leak, or carbon-monoxide alarms and are usually answered the same night. Our service vehicles carry most common OEM ignition boards, flame sensors, pressure switches, and blower motors for Trane, Carrier, Lennox, and Goodman systems so we can complete 85 % of repairs in a single visit.
Are there energy-efficiency upgrades you can perform during a repair visit?
Yes. While restoring heat is the top priority, we can often boost efficiency by: (1) installing an electronically commutated (ECM) blower motor in place of a PSC motor for up to 30 % lower electrical consumption; (2) sealing accessible duct leaks with mastic or tapeless sealant; (3) replacing single-stage gas valves with compatible two-stage models for smoother, lower-BTU operation; and (4) adding an outdoor temperature sensor to convert your thermostat to adaptive (auto-balance) control. These add-ons can frequently be completed the same day and qualify for TVA or federal tax incentives.
What does a typical gas-furnace repair cost in Signal Mountain, and do you provide upfront pricing?
We use flat-rate pricing, so you know the total before any work begins. As a guideline: diagnostic visit—$89; hot-surface igniter replacement—$190–$240; draft-inducer motor—$385–$550; control board—$420–$650; and cracked heat-exchanger replacement—$1,200–$2,000 (often insurance or manufacturer warranty eligible). After troubleshooting, we present at least two options—repair vs. replacement—along with warranty details, projected energy savings, and available rebates so you can make an informed decision.
How often should I schedule preventive maintenance for my furnace and A/C, and what is included in your service?
We recommend two tune-ups per year: one in early fall for the furnace and one in spring for the air conditioner or heat pump. Each inspection includes 20+ checkpoints—cleaning or replacing the filter, calibrating the thermostat, testing safety limit switches, inspecting the heat exchanger with a borescope, checking gas pressure and combustion efficiency, lubricating motor bearings, verifying refrigerant charge, flushing the condensate drain, and tightening electrical connections. Routine maintenance in Signal Mountain’s demanding climate can extend equipment life by 5–7 years and keep manufacturer warranties valid.