Quote:
Originally Posted by djlnc
I'd wondered if something like this could be done - it's a small electric heater downstream from the tankless heater, right? How did they tap into the farthest hot water line for the return? How "not cheap" was it?
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Typically, you don't need a heater, just a small pump to keep the hot water circulating throughout the house. These recirculating systems come with a sensor valve that connects to the hot and cold water lines under the farthest sink from the water heater. This provides the return. If you hire a plumber, you can probably get the pump system and installation for about $300 to $400.