Causes for not reaching rated boiler thermal power
1. Incorrect regulation of the boiler (especially primary and secondary air)
2. Insufficient chimney draft caused by chimney, breeching or cleanouts leaks, faulty
chimney (cross-section, height)
3. Bad fuel quality.
4. Dirty flue ducts.
5. Dirty grate.
6. Lack of air inflow to the boiler room.
7. Insufficient water quantity in the system.
8. Chocked up burner
NOTE: Any work related to boiler operation should be carried out in gloves, headgear and
protective goggles.
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General