The Best Water Heater Temperature Setting

Posted by on Jan 26, 2014 in Water Heater Repair San Bernardino

There are different views on exactly what is the very best temperature level at which to set ones water heater. Water Heater Repair San Bernardino will be sharing a few of the different views with particular evidence from those sources in order for one to make his or her own decision on the topic.Water Heater Repair San Bernardino

First off, the default setting most water heater manufacturers have their products set at is 140 degrees. If you have actually never examined this already, that could be the temperature it is set. Also, it can be difficult to know for sure exactly what the temperature setting is due to the fact that sometimes the temperature dial does not have degrees printed on it, simply warm, hot, really hot … something to that effect. Some people feel they are pre-set at a higher temperature level so it feels remarkable to have a great deal of hot water – kind of like trying to produce excellent brand awareness in consumers.

In regards to energy savings, by turning a water heater down from 140 to 120 degrees, it will save between 6 to 10 percent of energy usage. That equates to in between $6 to $20 a year most of the time.

Let’s start off with the most likely the most well known source, the U.S. Department of Energy. They recommend a setting of 120 degrees. The link with their website above offers a great deal of excellent info on the best ways to minimize ones hot water usage and expenses. It is certainly worth a read.

Now for the health risks of too low of a temperature setting. It can be concluded that Legionella bacteria has the optimum development range between 68 to 122 degrees. Treehugger states that “25 percent of all water heaters have differing levels of Legionella bacteria contamination.”

According to The National Center for Biotechnology Information: “There are two opposing risks when it comes to water temperature inside domestic water heaters; exposure to Legionella, the bacteria responsible for Legionnaires’ disease (pulmonary legionellosis), and the risk of scalding.” (read more…)

Legionella bacteria triggers a kind of pneumonia and is passed to people when one breathes in water contaminated with the bacteria – usually in showers, whirlpool baths and even air conditioning systems. Consuming the water is generally ok. It is an issue with having the germs get in ones lungs.

The Centers for Disease Control and Prevention approximates 8,000 to 18,000 Americans contract the illness each year. Five to 30 percent of the cases are fatal.

According to the Occupational Safety & Health Administration, here are some of the factors that can increase the risk of getting the disease:

  • Organ transplants (kidney, heart, etc.)
  • Age (older persons are more likely to get disease)
  • Heavy smoking
  • Weakened immune system (cancer patients, HIV-infected individuals)
  • Underlying medical problem (respiratory disease, diabetes, cancer, renal dialysis, etc.)
  • Certain drug therapies (corticosteroids)
  • Heavy consumption of alcoholic beverages

Cases to not have the water heater temperature level set at 140 degrees would be if there are children in your house or possibly with elderly people too. The threat of being burnt if the faucet was completely on hot water can be too great. Undoubtedly, anybody living in the home that is at risk of contracting Legionella Disease must have it set at 140.


So choose if there are any concerns of individuals burning themselves if the water temperature is too high. Likewise, be aware of anyone who has concerns of contracting Legionella Disease. Since the yearly cost savings of turning the temperature down is just about $20 most the time with the typical house’s hot water use, it might be a good option to keep the temperature level above 120 degrees just for the health related benefits; nonetheless, Water Heater Repair San Bernardino will let you make the call.

The following 2 videos reveal how to adjust the temperature level on both an electric and a gas water heater in case you are uncertain ways to do so.

How to Change the Temperature on an Electric Hot Water Heater

How To Change The Temperature On A Gas Water Heater

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