Once a year, scheduled in fall before the first hard freeze. September and October are ideal — you get the appointment time you want, and any parts needed arrive well before you actually depend on heat.

Where the Efficiency Goes

  • Restricted airflow. A clogged filter or dust-caked blower wheel forces longer run times and can overheat the heat exchanger into repeated high-limit lockouts.
  • Dirty burners. Incomplete combustion wastes fuel and produces carbon monoxide.
  • Incorrect gas pressure. Drifts over time; measurably reduces efficiency in both directions.
  • Weak flame sensor or ignitor. Causes failed ignition attempts and retries, each of which burns gas without producing usable heat.
  • Uncalibrated thermostat. A few degrees of drift means the system runs when it should not.

What the Visit Covers

Heat exchanger inspection for cracks, ignitor and flame sensor testing, gas pressure verification, combustion analysis with carbon monoxide testing, every safety and limit switch, blower cleaning and amp draw, venting and combustion air inspection, filter service, and thermostat calibration.

Safety Is the Stronger Argument

Efficiency is a good reason; safety is a better one. A furnace burns gas inside your home, and the heat exchanger is the only barrier between combustion gases and the air you breathe. A crack in it is a carbon monoxide hazard, and it is invisible without an inspection. That check alone justifies the annual visit.

Why New Mexico Furnaces Need It

Our heating pattern is short, sharp cycling — cold mornings, mild afternoons, freezing nights — rather than steady run time. Cycling is harder on ignitors, flame sensors, and blower motors than continuous operation. Blowing dust loads filters faster than manufacturer schedules assume, and elevation affects combustion tuning.

Book Ahead of the Rush

The first hard freeze generates a surge of no-heat calls across the metro and every contractor books solid within days. Fall scheduling means a marginal ignitor gets replaced on a mild October afternoon instead of failing at 11 p.m. in January.

Our Care Club bundles fall furnace service with spring AC maintenance, plus member pricing and priority dispatch. Contact B. Carlson in Albuquerque and Santa Fe.