How to Set Water Heater Temperature

Is your water way too hot? Is the water coming out of your tap not quite hot enough? Well, this is a common water heater problem that homeowners may experience at some point. Thankfully, you can adjust your water heater temperature in a matter of minutes. Setting your water heater at the optimal temperature helps keep your family safe and comfortable. In addition, you’ll save money on your monthly utility bill.

In this article, Mr. Rooter Plumbing provides you with an overview of how to adjust the temperature on a gas water heater and an electric water heater. We are a professional plumbing service offering top-notch water heater services. Whether you’re in need of tankless water heater installation or water heater repair, you can trust our qualified and experienced plumbers to do an exceptional job.

What Temperature Should My Water Heater Be At?

The optimal temperature for a water heater is typically set between 120 and 140 degrees Fahrenheit. This range strikes a balance between ensuring a sufficient supply of hot water for daily activities and minimizing the risk of scalding or excessive energy consumption. The lowest safe temperature recommended by the U.S. Department of Energy is 120 degrees Fahrenheit. It helps reduce the risk of scalding and conserves energy, making it an ideal choice for households with children or energy-conscious individuals. On the other end, the highest safe temperature (140 degrees Fahrenheit) provides hotter water, which can be beneficial for tasks like dishwashing and killing bacteria.

How To Adjust The Temperature On A Gas Water Heater

Step 1: Turn off the power to the water heater by switching off the circuit breaker dedicated to it. This ensures your safety during the adjustment process.
Step 2: Find the thermostat access panel on the water heater. It's usually at the front, near the bottom. You might need to use a screwdriver to open it.
Step 3: Inside the access panel, you'll see the thermostat control. Carefully turn the control to your desired temperature.
Step 4: After making the adjustment, put the access panel back in place and secure it.
Step 5: Go back to the circuit breaker and switch it on to restore power to the water heater.
Step 6: Wait for at least three hours to allow the water temperature to stabilize. Then, test the water at a faucet or shower to ensure it's at your desired temperature.

How To Adjust The Temperature On An Electric Water Heater

Step 1: Locate the circuit breaker panel and turn off the power to your electric water heater.
Step 2: Look for the thermostat access panel on your electric water heater. It's usually secured with screws and may have insulation behind it. Carefully remove the panel to reveal the thermostat.
Step 3: Take a screwdriver and use it to adjust the temperature setting on the thermostat.
Step 4: After making the temperature adjustment, reattach any insulation if it was present, and securely fasten the thermostat access panel with screws.
Step 5: Go back to the circuit breaker panel and turn the breakers back on to restore power to your electric water heater.
Step 6: Wait for approximately three hours to allow the water temperature to stabilize at the newly adjusted setting.
Step 7: Finally, test the hot water at a faucet or shower to ensure it's now at the temperature you desire. If further adjustments are needed, use the thermostat to fine-tune the temperature.

When In Doubt, Call Mr. Rooter Plumbing

Setting the optimal water heater temperature is a relatively easy and straightforward process. However, if you encounter any challenges, it’s best to reach out to a skilled and experienced plumber for help. Here at Mr. Rooter Plumbing, we are ready to help you with all your water heater needs. From tankless water heater installation to water heater repair and routine water heater maintenance, we’ve got you covered.