Many water heaters are preset to 140 degrees. This is a good temperature because the bacteria, legionella, are not able to breed and nearly all are unable to survive in such hot conditions. On the other hand, 140 degrees may be too hot for little kids and the elderly. If one is attempting to save money too, think about modifying the water temp to around 120 and 130 degrees. The cost savings is not incredibly significant, but this is the lowest advised temperature to avoid contaminating water with legionella. Though this bacteria is alright to ingest, it could be extremely harmful if taken into the lungs. Legionella lives and multiplies in warm water but not in hot water. But, when considering what heat range to set ones water heater to, it is important not to set it too high. 2nd and third degree burns can take place on adult skin in 5 seconds under the preset temperature of 140 degrees, so do not set the water temperature any higher and think about setting it lower if there are young kids or seniors in the household. Look at this article to find out more about the legionella bacteria and how to select the proper water heater temperature setting. Learn more about water heater repairs here.
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