Re: Hot water recirculation w/o pump
Posted by More on July 04, 19100 at 16:13:07:
In response to Re: Hot water recirculation w/o pump
: I have a two-story house with a basement where my gas water heater is located. I would like to install a
: static hot water recirculation system without a pump but am not sure it will work satisfactorily. My water
: heater is in the middle of the basement. A single hot water pipe runs from it to the back side of the house
: (in the basement) where it splits into two pipes, one going to the kitchen area and one to the master
: bedroom area. If I add a return pipe from the kitchen area and one from the master bedroom area, join
: them in a T connection and run a single return pipe from that point back to the water heater, how well
: will that perform? I realize the first floor will get the hot water before the second floor, but am just not
: sure I won't need a pump under the kitchen sink and one under the master bedroom lavatory. Can
: you give me a warm fuzzy about such a static system?

: Thanks.

: Jim Talbert
: Birmingham AL

Your static system will work, but you won't be able to regulate the timing of the recirculation without a solenoid switch or a timer of some sort to allow the recirculation cycle, and then stop. So your system will recirculate non-stop, and will quadruple your gas bill. If you run your recirculation back to the water heater and simply loop back into the hot supply, you could install an electric valve solenoid operated, and have it kick on say an hour before you wake up and an hour before your return arrival at night and operate that with a sprinkler timer to get your system to work without a pump.

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