Oil burner annual tune-up & combustion test
Why it matters
Oil burners need annual nozzle and electrode replacement, smoke testing, and CO2 verification. Skipped tune-ups reduce efficiency by 10–20% and risk dangerous puff-back events during firing.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another oil burner annual tune-up & combustion test.
How to do it
- 1
Contact a local oil-heat service company and schedule fall tune-up appointment.
- 2
Ensure burner is off and cool before technician arrives.
- 3
Technician will remove and replace the nozzle (typically 0.60–0.85 GPH).
- 4
Technician will clean electrodes, perform smoke test, and adjust air damper.
- 5
Technician will verify CO2 levels (13–14% is typical for good combustion).
- 6
Review service report and save receipt for records and future reference.
- 7
Test heating operation after service completes.