According to the Department of Energy, at what temperature should the "majority of the population" set their hot water heater to?

The EPA recommends 120 degrees to save energy, though you could turn it up if you like to scald yourself in the shower. If you have a suppressed immune system or chronic respiratory disease, you may consider keeping your hot water tank at 140ºF to mitigaterisk of promoting legionellae bacteria.

Asked by Elizabeth T · Last updated 5 years ago · 1.3M views · SOURCE