I Use about a tank of Kerosene a year 1,100 litres. I would think that an annual service is not necessary. How often should I clean my boiler?
A service should always be carried out at least once a year. This should also include a general survey of your surrounding pipework, flues, circulating pump, valves, safety valve, aav, etc. A trained eye can spot a problem about to begin.
A cleaning of the boiler is not a service. If you took a mercedes to a garage for a service and they washed it and charged you for a full service, you would not be best happy. It must be carried out with a flue gas analysizer to ensure the correct air to fuel mixture to correct to suit your particular installation and surrounding affecting factors.
A service should include the following:
I1. Inspect & clean fuel filter
I2. Inspect & test operation of fuel shut off valve
I3. Inspect & test operation of remote acting fire valve where fitted
I4. Inspect air inlets to boiler room for blockages and correct sizing
5. Inspect draught stabilizer where applicable
6. Inspect & clean flame chamber
7. Inspect burner refractory
8. Inspect & clean baffles
9. Inspect & clean burner diffuser & burner blast tube
10. Inspect ignition transformer, HT cable & porcelain for deterioration
11. Inspect & clean photocell
12. Inspect, clean & adjust burner electrodes
13. Calculate correct output of boiler & fit new burner nozzle to suit installation
14. Adjust burner pump pressure & air ratio
15. Inspect & test operation of boiler thermostat & boiler high limit thermostat
16. Inspect & test operation of flame failure device
17. Carry Out Full Combustion & Efficiency Analysis with Flue Gas Analysizer:
a. Boiler Combustion Analysis O² (Oxygen)
b. Boiler Combustion Analysis CO (Carbon Monoxide)
c. Boiler Combustion Analysis CO² (Carbon Dioxide)
d. Boiler Combustion Flue Temperature
e. Printed Report with Combustion Efficiency
f. Full Explanation of Results