4 Maintenance Tips to Keep Your Water Heater Working Optimally
February 16, 2026

February 16, 2026

Maintaining your water heater is crucial for ensuring it works efficiently and maximizes its lifespan. Over time, neglecting your water heater can lead to decreased efficiency, higher energy bills, or even system malfunctions. By following these simple maintenance tips, you can keep your water heater running smoothly and reliably, providing hot water whenever you need it.


1. Set and Monitor the Proper Temperature

Regularly check the temperature settings on your water heater. It's best to keep the thermostat set at 120 degrees Fahrenheit, per the Department of Energy (DOE). This temperature is sufficient for most household uses and can help prevent scalding. Moreover, keeping the temperature at this level helps conserve energy. In fact, according to the DOE, water heating accounts for 13% of annual residential energy use and consumer utility costs, so optimizing the temperature can significantly affect your utility expenses.


2. Flush the Tank to Remove Sediment

Experts recommend hiring a water heater service to drain and flush the tank of your water heater annually to remove sediment build-up. Over time, minerals such as calcium and lime can accumulate inside the tank, reducing efficiency and potentially causing damage. By flushing out these deposits, you not only enhance the performance of your water heater but also extend its lifespan. This simple maintenance step helps prevent potential problems that could lead to costly repairs or replacements.


3. Test the Pressure Relief Valve for Safety

A professional water heater service should also inspect the pressure relief valve on your water heater at least once a year to ensure it's functioning correctly. This valve is a critical safety component, as it releases pressure if the tank overheats or builds too much pressure. To test it, lift and release the lever while ensuring a burst of hot water escapes through the discharge pipe. If it's not working properly, it should be replaced immediately to ensure your water heater operates safely.


4. Inspect Anode Rods and Watch for Leaks

Another important maintenance tip is to check the anode rod every few years. This rod attracts corrosive elements in the water, helping prevent the tank from rusting. If the rod is heavily corroded, hiring a water heater service to replace it can significantly extend the life of your water heater. Additionally, keep an eye out for leaks, rust, or moisture around the base of the unit, as these can be early warning signs of larger issues.


Maintaining your water heater with these straightforward steps can help avert many common issues. By engaging a reliable water heater service and investing in proper maintenance, you can enjoy consistent hot water, improved safety, and lower energy costs throughout the year. To schedule a service, contact our team at Sullivan Plumbing today!

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