A 15-point Heating tune-up:†

1. Clean heat exchanger and inspect for combustion leaks.
2. Test for carbon monoxide.
3. Clean burners and adjust for maximum efficiency.
4. Clean pilot assembly and inspect thermocouple.
5. Inspect flame sensor.
6. Examine flue and inspect venting system.
7. Verify proper inducer motor operation.
8. Verify proper ignition.
9. Inspect gas piping and valve.
10. Flush condensate drain to protect against overflow.
11. Inspect blower assembly operation, lubricate and adjust as necessary.
12. Evaluate condition of air filers and other indoor air quality accessories.
13. Test all controls for proper operation.
14. Calibrate thermostat and confirm proper operation.
15. Evaluate the overall efficiency of the system and inform customer of equipment condition.

†Some of these procedures are not applicable to certain homeowners in the southern United States. In these instances, cooling demand is generally greater resulting in the need for semiannual cooling tune-ups.