- Dec 29, 2018
- Reaction score
- Orange, California
I'm not too inclined to yank the recirculation pump now that I put on a $45 Aqua-Stat and it all works so good. I do realize that having it running causes internal wear on the copper pipe which can cause pinholes (I had 2) but now with the Aqua-Stat it only runs for about 10 minutes every hour & it I wanted to, I could even use a cheap Christmas light timer to limit when it runs.Jeff, I saw this epic post because "WiFi" in the title and I also want instant hot water, but the electricity free thermosophon is the one for me (and I am an electrical engineer...) You say you want to stick with a pump because it is "awesome" yet it seems like you are describing something rather cranky: It uses electricity, it pumps the water much faster than needed causing turbulence that erodes the copper pipes, the pumps wear out over time, you fuss with scheduling or manual activation with waiting for the water... Wouldn't it be even more awesome if you had the uninsulated return loop to the bottom of the water heater, not deeding a circulation pump, with no bother having to start the pump in advance of using your water?
To confirm for me, Does your setup look like this image View attachment 24036
but with a recirculating pump where this photo shows a check valve? And is your water heater below the level of your sinks like the picture shows? If so, are you able to insulate the hot side and NOT insulate the return pipes so that water cools off and becomes heavier than the hot side? There are a lot of conditions here... if you can't meet them all, then the circulator is probably required.
I took this image from here: Tired of waiting for hot water? Hot water recirculation
Thanks for your family photos! I miss interacting with my local people, so here I am on a plumbing forum!
I'm just wondering, was the pump itself sitting there not running what was keeping my system from thermosiphing? I'd assume that's it. I understand just enough to see how that might slow the water down almost like a check valve would do but just not completely.