How frequently should No. 6 fuel-oil burner nozzles be cleaned?

No. 6 fuel-oil has a higher viscosity and contains more impurities than lighter fuels, which can lead to a greater buildup of carbon and sludge in the burner system. For optimal performance and efficiency of the burner, it is crucial to maintain the cleanliness of the burner nozzles. Regular cleaning helps to ensure a proper spray pattern and efficient combustion, preventing issues such as incomplete burning or the production of excess soot.

In practice, daily cleaning is recommended in environments where No. 6 fuel-oil is used, particularly during periods of heavy usage. This frequency helps to mitigate the risks of clogging and supports consistent operation of the burner. Therefore, while other frequencies may be adequate for lighter fuels or less demanding conditions, the specific nature of No. 6 fuel-oil necessitates the more frequent cleaning of the nozzles to maintain burner efficiency and reduce maintenance problems.