Water Heater Temperature Setting Debate

Posted by on Mar 1, 2014 in Water Heater Repair Des Moines

Much has been debated over what is an ideal water heater temperature setting. Many sources, consisting of ENERGY STAR, provide the energy conserving elements of temperatures of 120 degrees or lower. And yes, there are savings to be had, but realistically for those whose existing setting is closer to the typical factory preset temperature of 140 degrees.

Conversely, not as many share info about the possibility of contracting Legionella bacteria with a lower setting, especially with a temperature lower than 120 degrees. OSHA states some exceptional safety measures for avoiding this.

Water Heater Repair Des Moines’s conclusions are that it is something that each household has to weigh in regards to potential health issues mostly. For those with kids or with elderly individuals in the home, a higher setting can be a water scalding issue. Alternatively, those prone to contracting respiratory infections, a higher setting needs to be used.

Below is an infographic highlighting the different temperature growth ranges of Legionella.  This is a good follow up with a previous article of ours, The Ideal Water Heater Temperature.

Water Heater Repair Des Moines