The answer to 'how to clean water heater installation' is to regularly flush and maintain your water heater to ensure it is running efficiently and safely. This involves draining the tank, cleaning the sediment, and inspecting the components for any issues.
You should flush your water heater at least once a year, or more often if you have hard water. This helps remove any built-up sediment that can reduce the heater's efficiency and lifespan. It's also a good idea to check the anode rod and replace it if it's heavily corroded. Proper maintenance will extend the life of your water heater and prevent costly repairs down the line.