Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

DHW Recirculation With Viessmann Horizontal Indirect

Alan(CaliforniaRadiant)Forbes
Alan(CaliforniaRadiant)Forbes Member Posts: 1,243
in THE MAIN WALL
it would restrict, but not stop gravity circulation depending on your piping. If the majority the hot water main is sloping up and the majority of the return is sloping back down to the indirect, my guess would be that it would work.

<A HREF="http://www.heatinghelp.com/getListed.cfm?id=53&Step=30">To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"</A>

Comments

  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    Just noticed the little comment in the manual about gravity recirculation being "restricted" due to the upwards curving hot water supply tube in the tank.

    Looked inside. "Prevented" is a much better word than "restricted"!!! Bye-bye Newton!

    Gotta dig that HX. No problem with heat transfer...
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    ALL of my 1" supply main slopes up and ALL of the ¾" return slopes down. ¼" per foot when "horizontal". Large towel warmer is the highest element by at least 5' and designed as my gravity "pump". Connection to towel warmer is about 21' above the supply connection to the indirect.

    I'll try gravity first but I don't have high hopes...

    Want to make a friendly non-monetary wager? I'll bet against...
This discussion has been closed.

Categories