Proper maintenance helps to keep the system running efficiently and prevents potential issues down the line. Here are some tips for maintaining your water heater:

1. Check the pressure relief valve: This valve helps release excess pressure from the tank. Test it annually by lifting the lever and observing if water flows out. If not, it may need to be replaced. 

2. Drain the tank: Sediments can accumulate at the bottom of the tank, reducing its efficiency. To flush out these sediments, attach a hose to the drain valve and drain a few gallons of water from the tank every six months.

3. Insulate the tank: Insulating your water heater can improve its energy efficiency. Insulation blankets can be purchased and easily installed to reduce heat loss.

4. Check for leaks: Regularly inspect the area around your water heater for any signs of leakage. If you notice any leaks or puddles, contact a professional plumber to address the issue promptly.

5. Test the temperature and pressure (T&P) relief valve: This valve is responsible for preventing excessive pressure or temperature buildup. Test it annually to ensure it's functioning properly. Consult your water heater's manual for specific instructions.

6. Keep the area around your water heater clear: Make sure there's enough space around the water heater to ensure proper ventilation. Keep flammable items away from the unit to prevent any hazards.

7. Monitor the anode rod: The anode rod helps prevent corrosion within the tank. Check it every 3-5 years and replace it if it's significantly corroded or deteriorated.

Remember, while you can perform some of these maintenance tasks yourself, it's always a good idea to consult a professional plumber for more complicated repairs or if you're unsure about any maintenance procedures. Regular maintenance will help your water heater last longer and provide reliable hot water.