Steps to Adjust a Hot Water Heater Temperature

Every home has a water heater working quietly behind the scenes to supply hot water for showering, cooking, cleaning and other household tasks. Have you noticed the water feeling too hot at the tap? Perhaps the opposite is true, and the water never seems to get as hot as you want. You might need to adjust your hot water heater temperature to increase comfort, safety and energy efficiency. Here are some reasons why you might need to change the temperature and how to make this easy adjustment based on the type of water heater you have.

Why to Change Your Water Heater Temperature

At times, you might need to lower the temperature; other times, the hot water might require a boost. According to the US Department of Energy, the desired water heater temperature is between 120 and 140 degrees F, striking a balance between safety and energy efficiency.

However where in this range should you have your hot water heater? The answer will depend on your household’s individual needs.

Why Should You Turn Down the Water Heater Temperature?

• Safety: A temperature higher than 140 degrees can result in third-degree burns within seconds. Lowering your water heater’s temperature closer to 120 degrees further minimizes the risk of scalding from the tap. Although hot water burns can happen to anyone, children and older adults are specifically at risk, as their skin is sensitive and can burn more rapidly.
• Maintenance: Turning the temperature off is a crucial first step before draining the tank or carrying out other water heater maintenance tasks. As soon as the unit is off, wait several hours so the water can cool before beginning maintenance so scalding water doesn’t splash on your skin.
• Energy savings: Water heating accounts for a considerable portion of your home’s energy use. Reducing the temperature setting to 120 degrees minimizes your utility costs without diminishing hot water performance. When you aren’t going to be home for a few days, lower the heat even more for energy savings while you’re gone.

Why You Should Turn Up a Water Heater’s Temperature

• Microbial growth in the tank: Don’t set your water heater below 120 degrees for a long time because this creates an environment where harmful bacteria can grow.
• Better cleaning: If your dishwasher doesn’t come with a built-in heating capability, you may need to set your water heater higher than 120 degrees for your dishes to get clean. Hotter water eliminates grease and dirt more effectively and provides better sanitation.
• More hot water for everyone: Raising your water heater’s temperature makes more hot water available. If you’re frequently the last person to get ready in the morning and you routinely are forced to endure lukewarm showers, try turning the water heater setting up to 140 degrees.

How to Change the Temperature on a Hot Water Heater

Before making any modifications, it’s wise to determine your current water temperature. Open the hot water tap at the kitchen sink and put a cooking thermometer under the water. Generally, the temperature at the tap is about 10 degrees lower than the water heater setting due to heat loss as the water flows through your pipes.

Adjusting the water heater is a fairly simple process with many units. Stick to these guidelines to help you make the proper adjustment.

Changing the Temperature on a Tank Water Heater

If the water in your home has a gas or electric storage tank, check near the bottom of the tank for a temperature dial. You may see “Low” on one end and “Very Hot” on the other, with letter and symbol markings in between. Turn the knob just a little to one side or the other, depending on whether you need to have hotter or cooler water.

Following the adjustment, wait three hours so the temperature in the tank to stabilize. After that, go find the water temperature at the tap again. You can continue using your hot water like normal even though you are waiting.

Changing the Temperature on a Tankless Water Heater

Modern tankless models often have a user-friendly digital control panel with temperature settings you can move up or down simply by pushing a button. It’s worth noting that tankless water heaters may not be able to attain the highest settings during cold spells or peak demand times. If you’re having problems with the lower flow rate, contemplate setting up a second point-of-use unit in the kitchen or bathroom.

Call Service Experts Heating & Air Conditioning for Water Heater Services in Calgary

Service Experts Heating & Air Conditioning is committed to improving home comfort and safety with reliable water heater repair in Calgary. Consider scheduling services with us if you need help modifying your hot water heater settings or if the thermostat reading and tap temperature don’t seem to match. We offer fast, long-lasting solutions to all your water heater dilemmas. For expert service customized to your needs, contact Service Experts Heating & Air Conditioning at 403-279-5760 today!