For lots of people, there’s nothing better than a hot shower in the morning. Although that may just 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 above the recommended degree can throw away energy and cost you money. It also can cause a safety concern for members of your family. But, if you set your water heater temperature too low, it can enable growth of potentially harmful bacteria and not supply adequate hot water for your property.

So, what number should you set your water heater? Here, we’ll establish the most cost-effective temperature to use, when there could be justification to set it a little higher and how hot is too hot for your own water heater.

What Temperature for my Water Heater Is the Most Energy Efficient?

Although many manufacturers advise setting the water temperature at 140 degrees, a more efficient temperature for a water heater is 120 degrees Fahrenheit. Specialists say 120 degrees provides the right balance between safety and energy usage.

The U.S. Department of Energy estimates that setting a home water heater temperature at 120 degrees could save roughly 22 percent on energy costs. Energy waste is a frequent challenge for water heaters because traditional tank models constantly heat a tank of water in case it is needed. If you have the water heater temperature set too high, your water heater is consistently heating a tank filled to the brim with very hot water.

What Temperature Should I Set My Hot Water To?

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 members of the household, but not so hot that it risks burning skin on contact. This makes it a safer alternative, especially in homes with younger children or elderly men and women. Lower temperatures also minimize mineral deposits in your water heater, which could cause it to break down or need replacing.

Can I Set My Water Temperature Hotter Than 120 Degrees?

While many energy experts say 120 degrees is the preferred water heater temperature if you’re wanting to save money, is it alright to set it higher? Beyond personal preference, there are a few situations where it could make sense to set your water temperature a little higher, between 130-140 degrees:

  • Bacteria: Increased water temperatures can be helpful in eliminating harmful bacteria that can cause or exacerbate certain health conditions. This also may be helpful if you know your home has an issue with bacteria, or if any residents of the house are sick.
  • High usage: If your home is inclined to use a large volume of hot water simultaneously—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 for all the household's needs.
  • Old dishwasher: If your dishwasher is old and doesn’t heat water on its own, you may have to set your water heater to a higher temperature for it to work effectively.

What Temperature Is Too High?

While some people like their water very hot or would rather blend hot and cold water to obtain their perfect water temperature, there is such a thing as water that is too hot. Plumbing and heating specialists say any temperature hotter than 140 degrees is too hot for a water heater in a residence. At 150 degrees, which is definitely way too hot, it takes only seconds for the water to cause third-degree burns. This is why a water heater temperature of 150 degrees is particularly hazardous in residences with children or the elderly.

Call Mountain Air for Your Water Heater Service Needs in Morgantown

Water heaters can be a little mysterious, but the knowledgeable specialists at Mountain Air know these appliances extremely well. They’ve fixed many brands and designs of water heaters over the years, so they have the experience to take care of your water heater repair in Morgantown.

We also are skilled in water heater replacement, so contact us at 304-413-1287 if you think you need water heater installation in Morgantown. We are happy to take a look at your system and produce a free estimate!