The answer to 'how to maintain water heater' is to perform regular maintenance tasks to keep your water heater running efficiently and safely. This includes flushing the tank, checking the temperature and pressure relief valve, and inspecting the anode rod. Proper maintenance can extend the lifespan of your water heater and prevent costly repairs or replacements down the line.
It's recommended to flush your water heater tank at least once a year to remove sediment buildup, which can reduce efficiency and lead to corrosion. You should also check the temperature and pressure relief valve to ensure it's functioning properly, and replace the anode rod every 3-5 years to prevent tank corrosion. If you notice any leaks, unusual noises, or other issues with your water heater, it's best to call a professional plumber for an inspection and repairs.