Checklist
Daily Boiler Operator Checklist
A simple daily checklist for boiler operators. Cover the essential checks that keep your boiler running safely and efficiently every day.
3 min readUpdated July 2026
Startup Checks
- Check water level: Verify gauge glass shows normal level. Blow down gauge glass to confirm reading is accurate.
- Check fuel supply: Verify fuel valves open, pressure correct, oil temperature adequate (for oil burners).
- Check boiler room ventilation: Ensure adequate combustion air. No obstructions to vents or louvres.
- Verify safety devices: Confirm low-water cutoff is functional. Check safety valve is not gagged or blocked.
- Check feedwater tank: Verify water level and temperature. Confirm chemical dosing is operating.
During Operation
- Monitor water level: Check every hour. Level should be stable. Rising or falling level indicates a control problem.
- Check steam pressure: Should be stable at the setpoint. Fluctuations indicate control or load issues.
- Observe flame: Flame should be stable, blue (gas) or bright yellow (oil), not flickering or smoking.
- Check flue gas: Record stack temperature and O2. Compare to baseline. Investigate any changes.
- Listen for abnormalities: Unusual noises, vibration, or rumbling indicate problems. Investigate immediately.
- Check for leaks: Walk around. Look for water, steam, or fuel leaks at valves, flanges, and fittings.
- Record data: Log steam pressure, fuel consumption, water level, feedwater temperature, stack temperature, and any abnormalities.
End of Shift
- Perform water tests: Test TDS, pH, sulphite, phosphate. Adjust chemical dosing if needed.
- Bottom blowdown: Quick-open valve for 5 to 10 seconds to remove sludge.
- Verify continuous blowdown: Confirm conductivity controller is operating and maintaining TDS within range.
- Clean area: Remove oil, water, and debris from the boiler room floor.
- Complete logbook: Record all readings, events, and any issues for the next shift.
- Handover: Brief the incoming operator on any issues, ongoing problems, or things to watch.
The logbook is your friend
A well-maintained logbook is the most valuable troubleshooting tool. When something goes wrong, the first thing a technician will ask for is the logbook. Record everything, even if it seems minor.