The maintenance of an oil boiler must be carried out once a year. These checks are essential for the proper functioning of your installation, to ensure your safety and to allow you to save energy. Fuel-it details the different steps to maintain the boiler.

1) Cleaning the heating element and the fireplace

The oil boiler produces a lot of residues. The professional will start by inspecting and cleaning the inside of your installation, after removing the burner, trapdoor, insulation plate and fireplace access door. Equipped with a chimney sweeper and brushes, he will scrape off the soot residue before removing it with his professional vacuum cleaner.

2) Burner cleaning

When servicing the oil boiler, checking and cleaning the burner is an important step because it is this part that allows the oil to burn. The professional will check the burner, check it for damage, for leaks, and check the fuel pump and electrodes. After that, he will proceed to clean the room.

3) Checking the oil nozzle

When servicing the boiler, the professional will dismantle and check the fuel nozzle, a part used to supply fuel. If it is in poor condition, the nozzle will be replaced directly. Before being reassembled on the burner, the nozzle will obviously be cleaned.

4) Flame hook adjustment

The flame arrester is the element used to modify the air flow and heating of the boiler. The professional will adjust this element on the nozzle. Depending on the different models and their power, the distance between the flame arrester and the burner base may vary.

5) Cleaning of filters

Next step to maintain the boiler: clean the burner oil filters and, if your installation is equipped, dismantle and clean the oil pre-filter.

6) Chimney sweeping

The professional must sweep the flue gas exhaust ducts from the boiler to their external outlet. A way to avoid excessive fuel consumption and, above all, to avoid possible fire risks.

7) Carbon monoxide measurement and smoke analysis

After the various maintenance steps of the boiler, the professional restarts the installation in order to identify a potential problem. If everything is in order, it will measure the carbon monoxide level using a specific device. In the event of non-compliant results, further investigations may be carried out.

8) Smoke analysis

Thanks to a combustion analyzer, the professional analyses the fumes and their content of carbon monoxide and carbon dioxide. These measures will help him to adjust the burner in the safest way.

9) Keep the maintenance certificate

Within 15 days, the professional must provide you with a certificate of maintenance including the various operations carried out, the results of the measurements and any advice he has given you. You must keep this document for two years. The certificate must be able to be presented in the event of an inspection and covers you in the event of an accident.

10) Regular check of the boiler

Now that the professional has completed the mandatory annual maintenance, it is up to you to take care of it, for less technical tasks, in order to preserve your installations. For example, you can monitor the boiler pressure (ideally between 1 and 1.5 bar). If you have any questions, do not hesitate to ask the professional for advice.