Anyone recognize this?

[Marc]

I've heard of pumps that circulate hot water in the hot water distribution lines but haven't found any...until perhaps now.  The pump connects to the drain fitting at the bottom of the heater.  Also connects to the Honeywell thermostat.

[Jim Katen]

It's exactly what you describe. Even with the thermostat, I usually tell people to put a timer on them so that they only circulate during those hours when people want their hot water to appear instantly. 

 

[Marc]

Thanks Jim.

[John Kogel]

Here's a tip for the hard of hearing, including myself. To check to see if the pump runs, with hot water running, just place a hand on the motor.

[Marc]

17 hours ago, John Kogel said:

Here's a tip for the hard of hearing, including myself. To check to see if the pump runs, with hot water running, just place a hand on the motor.

57 years of hearing impairment teaches you a thing or two.

It wasn't running at the time.

Edited October 22, 2017 by Marc