LafayetteLady
Posts: 7683
Joined: 5/2/2007 From: Northern New Jersey Status: offline
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quote:
ORIGINAL: DesFIP If you live in a city apartment, you don't need to run the water until it gets hot. Here, where there may well have been no use of hot water since early morning, it is necessary for the dishes to be clean and sanitary. Otherwise the water still isn't 120F (the temp my hot water heater is set at) by the time it finishes filling, This, btw, is what I was told to do by my appliance repairman, a friend of 20 years. Water enters your dishwasher and then it raises the temperature of that water well above what ever your water heater is set at. It will heat that water until it reaches the right temperature (this uses significant energy). If you run the water at the sink and it and it take a while for the cold water that has been sitting in the pipe to run out and get hot more than a few seconds, (ours take almost a minute), when you run it until it gets hot, the machine doesn't have to heat up the cold water that was sitting in the hot water pipe, It still won't be at the correct temperature when the machine is full, but the machine won't have to spend as much time heating it up. This from from two plumbers. One my uncle, who installed the dishwasher in my old house and another pluber who I asked the question.
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