The answer to 'how to clean boiler' is to perform regular maintenance and cleaning to ensure your boiler is running efficiently and safely. This typically involves flushing the system, cleaning the burners, and checking for any signs of wear or damage.
Start by turning off the power to the boiler and allowing it to cool completely. Then, drain the water from the system and remove any debris or sediment that has built up. Use a wire brush or other tool to clean the burners, making sure they are free of any blockages. Finally, check the pressure and temperature gauges, as well as any other components, to ensure they are functioning properly.