Quote:
Originally Posted by ohioshooter
A recirculating pump without an additional heater that holds hot water will do nothing. Think about it.
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I wouldn't buy one. But, I think the Aquamotion system pumps the water at a slow pace until the tankless heater comes on, and then monitors the temperature of the water in the pipe to keep it hot. When it cools down, the pump comes on again. So, you always have hot water in the pipes in your house.