Fascinating discussion. I hadn't known about the recirc pumps. Of course, here in NJ we don't have a water heater that stores hot water. Our oil burner has a coil in it for domestic hot water, and it heats the water on demand. So we not only have to wait for the hot water to make its way through the pipe, we have to wait for it to heat up, too. So we, too, brush our teeth while waiting for the hot water to arrive. We simply brush more slooowly. :-)
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