Furnace Tune-Up
Comprehensive seasonal furnace maintenance with combustion analysis and airflow testing. More than a checklist.
Most furnace tune-ups are a checklist exercise — the technician opens the panel, visually inspects a few components, tightens a few screws, and hands you a form with checkmarks next to items like “heat exchanger” and “electrical connections.” At Constant Air Balancing & Services, our furnace tune-up is fundamentally different because we actually measure system performance, not just verify components are present.
Our NCI-certified furnace tune-up includes combustion analysis — measuring CO levels, temperature rise across the heat exchanger, gas input pressure, and manifold pressure — to verify your furnace is burning safely and efficiently. We measure airflow through the system to confirm the blower is delivering adequate CFM for proper heat transfer. And we test the safety chain including high-limit switches, flame rollout switches, and pressure switches to verify they will protect your family if something fails during operation.
In Las Vegas, furnace maintenance has a different calendar than most parts of the country. Our cooling season runs from April through October, which means your furnace sits idle for six or more months. During that time, desert dust settles on flame sensors, spiders build nests in burner assemblies, and condensation from the evaporator coil can corrode electrical connections inside the furnace cabinet. A pre-season tune-up catches these problems before your first cold night.
We recommend scheduling your furnace tune-up in September or October — before the heating season begins and while our schedule allows for thorough service. If our combustion analysis reveals a cracked heat exchanger, failing ignitor, or worn blower motor, you have time to plan the repair or replacement before you actually need heat. Waiting until the first cold night and discovering your furnace will not start puts you in the position of making an emergency decision instead of a planned one.
Visual Inspection
We inspect the heat exchanger for cracks, check burner assembly condition, examine electrical connections for corrosion, and verify venting and combustion air supply are clear and properly configured.
Combustion Analysis
We measure gas input pressure, manifold pressure, temperature rise, and CO levels in the flue gas. These measurements verify your furnace is burning safely and efficiently — not just that it ignites.
Airflow Measurement
We measure airflow through the furnace to verify the blower is delivering adequate CFM. Restricted airflow from dirty filters or duct problems causes overheating that damages heat exchangers and shortens furnace life.
Safety Chain Testing
We test every safety device — high-limit switch, flame rollout switch, pressure switch, flame sensor — to verify they will shut the furnace down if unsafe conditions develop during operation.
Component Maintenance
We clean the flame sensor, check and tighten electrical connections, lubricate the blower motor if applicable, replace the air filter, and verify thermostat calibration and communication.
Measured, Not Checked
Our tune-up measures combustion performance, airflow, and safety device function with instruments — not with visual inspection and checkmarks on a form.
Pre-Season Prevention
Finding problems in September gives you time to plan repairs. Finding problems on the first cold night means emergency decisions and premium pricing.
Desert-Specific Service
We know Las Vegas furnace issues — dust-clogged flame sensors, spider nests in burner assemblies, condensation corrosion — and we check for them specifically during every tune-up.
Still have questions? Contact us directly or call (702) 840-5163 — we are happy to help.