The site was created by the students from the Department of Environmental, Water and Earth Science at the Tshwane University of Technology, Pretoria, South Africa. This is their way to reach out to the world with a message that they are getting ready to make a difference out there.
Wednesday, August 27, 2008
Tip number 99: Cool down your water
Most people keep their hot water at far too hot a temperature and need cold water to cool it down, wasting precious heat energy. Turn your water heater down to 54 degrees C. At this temperature the water is hot enough to kill bacteria but 'cool' enough to save energy.
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