What Temperature Do You Set On Your Water Heater?

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Are you getting a new water heater to replace your old one that is damaged? If so, one thing that you may not have put much thought into is how hot the water should be. Here are some things to know about the temperature of your hot water.

Why Be Concerned About The Water Heater's Temperature?

There are two main reasons that you want to set your hot water heater to the right temperatures. If the temperature of the water is too low, there is a possibility that disease and bacteria can form in the water reservoir tank. If the water temperature is set too high, you could end up with hot water that scalds someone if they are not careful. That's why it's important to find the perfect balance that is right for your water heater and your household.

What Bacteria Can Form In The Water Heater?

A common form of bacteria that can grow in your reservoir tank is legionella. According to the CDC, legionella tends to grow the most when the temperature of your water heater is set below 108°F. You'll need to set the thermostat so that the water is hotter than that, with a hotter temperature killing off the bacteria within minutes. While there are more bacteria that can be found within a hot water reservoir tank, most bacteria will be killed at the same temperature range.

What Is The Best Temperature To Set The Water Heater To?

You'll want to find a balance for your household that keeps the water hot and prevents scalding. Experts tend to recommend keeping the water between around 120°F to kill off bacteria and provide water at a good temperature and 140°F. Try to stick within that range when possible.

Can You Regulate The Water Temperature Coming Out Of The Water Heater?

It is possible to keep your hot water heater on the hotter end of the temperature scale, and then regulate the temperature after it leaves the tank. This is done with a special regulator that will mix in cold water with the hot water lines. It can be installed on specific water lines for a bathroom that is used by children to ensure that the water never gets too hot, or on the water line coming directly out of your water heater. Of course, remember that keeping the water in the tank unnecessarily hot is going to cost more money over time to heat the water to that temperature. 

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16 November 2020

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