There are a few steps you can take to achieve basic boiler maintenance:
Get your boiler service
Use heating oil additives
Check for sooty or black marks around the boiler
Check vents and flues for blockages
Flush your boiler water often and use a de-scaler
Bleed your radiators
If this sounds like a lot, don't worry, the only thing you need to do is to find a boiler service by going to the YourPro platform and they will help you with any boiler or oil boiler maintenance.