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Why do hot water tanks have a heater fitted at the bottom rather than the top?

April 26, 2017fitted heater hot tanks water

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Why do hot water tanks have a heater fitted at the bottom rather than the top?

1 Answer

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The reason for this is because hot water rises and cold water sinks. So as the heater heats the water the hot water rises to the top of the tank while the colder water sinks to the bottom to be heated. That is why the cold water inlet is installed at the bottom of the tank while the hot water outlet is on top.