Honest opinions about how to buy Appliances and Lighting.

Wednesday, October 17, 2007

Shutting Down Your Water Heater

Perhaps one of the best tips is to shut the water heater to 120 degrees. Children are not scalded, and you save a small fortune in electricity. Total win, right? I sent all of The Yale Blog Tips to 60,000 people on our mailing list expecting almost universal affirmation.

There seems to be one small risk, according to one of the Doctors on our list. At 120 degrees, there is a very slight chance of Legionnaires disease bacteria developing within older water heaters. To kill Legionaires, it seems, the temperature should be set at 123(please correct me if I am wrong).

Certainly, using less hot water is a key to saving electricity, but be informed of the risks.


  1. Anonymous11:16 PM

    IS it more efficient to turn water heaters off if not in use for a few days or to leave it on??

  2. Dont shut your water heater off

    Turn it down...