For many people, there’s nothing better than a hot shower to start the day. Even though that might be a fantastic way to wake up and start the day, experts say you should be careful not to set your water too hot.

Setting your water heater to a temperature that’s too hot can waste electricity and cost you money. It also can pose a safety issue for members of your residence. But, if you set your water heater temperature too low, it can permit growth of potentially harmful bacteria and not provide sufficient hot water for your property.

So, what temp is the right one for your water heater? Below, we’ll establish the most efficient temperature to use, when there could be reason to set it a little higher and how hot is too hot for your home's water heater.

What Water Heater Temperature Is the Most Efficient?

Although many manufacturers encourage setting the water temperature at 140 degrees, a more economical temperature for a water heater is 120 degrees Fahrenheit. Specialists say 120 degrees strikes the right balance between safety and energy consumption.

The U.S. Department of Energy estimates that setting a home water heater temperature at 120 degrees could save up to 22 percent on energy bills. Energy waste is especially a challenge for water heaters because traditional tank models always heat a tank of water in case it is demanded. If you have the water heater temperature set too high, your water heater is consistently heating a tank full of very hot water.

What's the Right Temperature for My Hot Water?

In most cases, the suggested efficient temperature of 120 degrees is the right setting for your water heater. At 120 degrees, the water is heated enough to meet the desires of most homes, but not so hot that it could cause burning skin on contact. This makes it a safer choice, especially in homes with young children or elderly individuals. Reduced temperatures also decrease mineral deposits in your water heater, which could cause it to break down or need replacing.

Can I Raise My Water Temperature Hotter Than 120 Degrees?

While many energy experts say 120 degrees is the best water heater temperature if you’re looking to save money, is it OK to set it higher? In addition to personal preference, there are a couple of different scenarios where it could be a good idea to set your water temperature a little higher, between 130-140 degrees:

  • Bacteria: Higher water temperatures can be helpful in eliminating harmful bacteria that can cause or aggravate certain health conditions. This also may be practical if you know your home has a problem with bacteria, or if any residents of the house have a compromised immune system.
  • High usage: If your home tends to use a large volume of hot water at the same time—showering while also running the dishwasher and washing machine, for example—a higher water heater temperature may be necessary to make sure there’s sufficient hot water to go around.
  • Old dishwasher: If your dishwasher is old and doesn’t heat water as part of its process, it may be necessary to set your water heater to a higher temperature for it to work effectively.

What Temperature Is Too High?

Although some people like their water extremely hot or would rather blend hot and cold water to create their ideal water temperature, there is such a thing as water that is too hot. Plumbing and heating specialists say any temperature higher than 140 degrees is too hot for a water heater in a residence. At 150 degrees, which is regarded as way too hot, it takes a few seconds for the water to lead to third-degree burns. This is why a water heater temperature of 150 degrees is particularly hazardous in homes with children or the elderly.

Call Farris Heating & Air for Your Water Heater Service Needs in Bartlesville

Water heaters can seem a little mysterious, but the qualified pros at Farris Heating & Air know these appliances extremely well. They’ve fixed many brands and models of water heaters through the years, so they have the experience to tackle your water heater repair in Bartlesville.

We also provide water heater replacement, so give us a call at 918-333-0376 if you believe you need water heater installation in Bartlesville. We are happy to take a look at your system and provide a free estimate!