Furnace Tune-Ups
Byrum Heating & A/C performs furnace tune-ups for homes throughout Union County and the neighboring North and South Carolina communities. The tune-up is a once-a-year service visit that cleans the furnace, verifies its safety controls, and confirms it heats to specification. Local homeowners have counted on Byrum since 1996.
Book your furnace tune-up online, by phone, or through our round-the-clock website chat, with same-day and next-day appointments when you need them. A Byrum product expert will clean, test, and verify your heating system and give you recommendations fitted to your home.

What Happens During a Byrum Furnace Tune-Up
Our product experts service the furnace end to end, covering combustion, safety, and air delivery:
- We perform a full combustion analysis of the system.
- The burners get cleaned and the heat exchanger gets inspected.
- The ignition system, or the pilot assembly where one is used, gets a cleaning and adjustment.
- We set the burner for maximum efficiency, then confirm the combustion air levels are proper.
- The gas valve gets tested, and we check the system for gas leaks.
- We inspect the flue pipe and draft diverter.
- Safety controls and operating controls both get tested, with adjustments made as needed.
- We check the blower motor and belt, meter the motor’s voltage and amperage, and lubricate motors, bearings, and fans.
- We check the temperature rise, test backup heating elements, and evaluate your air filters.
Why Fall Service Beats Winter Repairs
The components that strand homes without heat, such as igniters and flame sensors, degrade gradually and fail suddenly. Testing them in the fall, when the stakes are a scheduling decision, beats discovering them in January, when the stakes are a cold house and an emergency call.
There is a fuel-cost case too. Combustion analysis and burner adjustment make sure the gas you buy becomes heat rather than waste, and a verified temperature rise means the blower is delivering that heat through the house at the intended rate. A furnace running to spec wastes less fuel, and regular maintenance also helps protect your manufacturer’s warranty.
The Byrum Difference on Heating Service
Tailored solutions are our quality standard. Our product experts service gas furnaces and heat pumps, and findings come with explanations and options, and you choose.
When a tune-up uncovers something that needs work, our furnace repair team takes it from there, with same-day and next-day appointments available. Booking runs through online scheduling, 24/7 website chat, or a phone call.
What Your Appointment Involves
The technician starts with your account of last winter, services the furnace through the full checklist, and runs it through complete heating cycles with measurements along the way. Heat pump homes get the backup heating elements tested as part of the visit. The closing conversation gives you the system’s condition, the measurements behind it, and any recommendations in plain terms.
Pair It with Spring Cooling in the Energy Save Plan
The Energy Save Plan is our HVAC maintenance plan: a heating tune-up each fall, a cooling tune-up each spring, priority scheduling, discounts on parts and labor, loyalty rewards that build toward a future system, and automatic maintenance reminders. Two visits a year, and the reminders come to you.

Heating excellence guaranteed.
And Dozens More
Qualified for All Major Makes and Models
Our team of expert technicians is trained to handle all makes and models of major brands with precision and care. From routine maintenance to complex repairs, we ensure top-notch service for all.
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Ensure optimal efficiency of all your systems
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Lower your utility costs with energy efficiency
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Extend your system’s lifespan through regular maintenance
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Keep you and your family comfortable and safe during all seasons
Our Certifications & Awards
FAQs
Does the tune-up include checking my safety controls?
It is the difference between the air entering the furnace and the air leaving it, and the manufacturer specifies an acceptable range. A rise outside that range means airflow or combustion is off, which stresses the heat exchanger and shortens equipment life. Measuring it confirms the furnace is heating the way it was engineered to.
What will my furnace tune-up cost?
The price depends on the equipment type and the number of systems. Tell us about your system when you call or book online, and we will quote the price for it. Energy Save Plan members have both seasonal tune-ups included in the plan, along with discounts if any repairs come up.
My furnace short-cycles on mild days. Will a tune-up address that?
It will identify the cause, which is the necessary first step. Short cycling can come from a clogged filter, an oversized system, a failing limit switch, or thermostat placement, and each has a different fix. The tune-up tests the equipment-side causes directly, and the technician explains what the evidence shows.
Do heat pumps need a fall tune-up, or only gas furnaces?
Heat pumps benefit from a fall visit too. We service heat pumps, and the heating checklist includes testing the backup heating elements that carry the load when outdoor temperatures drop, along with voltage and amperage on the motors.
What is temperature rise, and why do you measure it?
It is the difference between the air entering the furnace and the air leaving it, and the manufacturer specifies an acceptable range. A rise outside that range means airflow or combustion is off, which stresses the heat exchanger and shortens equipment life. Measuring it confirms the furnace is heating the way it was engineered to.

Need an HVAC Maintenance Plan in Marshville?
- Improved system performance and energy efficiency.
- Prolonged lifespan of HVAC and IAQ equipment.
- Reduced potential for costly breakdowns and repairs.
- Enhanced indoor air quality for a healthier environment.
- Priority scheduling and prompt service when needed.
- Savings with preventive maintenance & discounted repairs.

HVAC & IAQ Financing Available in Marshville and Surrounding Areas
We understand that major home improvement repairs can come unexpectedly, and our financing partners assist our customers by offering competitive plans. Our convenient financing options give you budget flexibility to get the reliable, energy efficient comfort you’re looking for.
Learn MoreDavid Silver
I had no idea what had gone wrong with my unit. The tech diagnosed a simple fix and the fee was very reasonable. Absolutely satisfied.
Roland Hinson
They have done several calls for me at different locations. ABSOLUTELY THE BEST AROUND. Believe me when I say don’t waste your time with anyone else. Service, knowledge and price. Cannot beat them.
Serving the Heartland of the Carolinas Since 1996.
Byrum Heating & A/C, Inc. serves the community with unwavering dedication across a wide service area. With a strong foundation built on Christian values, quality workmanship, and honesty since 1996, they have become a trusted name in heating, cooling, and indoor air quality services. Their NATE-certified technicians cover residential and commercial HVAC needs and ensure top-notch repairs, installations, and maintenance. Byrum's commitment to customer satisfaction and integrity shines through in every interaction, making them the go-to choice for optimizing comfort and cost savings.



















