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On-demmand water heater with radiant slab

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Eric_12
Eric_12 Member Posts: 1
in THE MAIN WALL
42953.1

I'm a big fan of stained & sealed concrete floors and intend to try to use one in an upcoming project. As such, besides its other qualities, the idea of using a radiant heating system appeals to me. Supplying the radiant slab, I have seen on-demand hot water systems used and heard they achieved a high level of efficiency. However, I can't seem to find too much on the pros & cons of this idea and also how to appropriately determine the system requirements; any comments/ suggestions would be greatly appreciated.

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  • lchmb
    lchmb Member Posts: 2,997
    done one..

    I have done a similiar setup and found the system to work incredibly well. I used a rinnia continuum with great success. With the control you are able to set your outgoing temp and the size of the system make's it easy to put anywhere...hope this help's...
  • tombig
    tombig Member Posts: 291
    Instananeous HW heaters

    There have been many threads at this site in the past with lively pro and con opinions. Try a search here and you may turn one up. Flow rate? Buffer tank? Setpoint temp rather than outdoor responsive? All good questions and many good responses.
  • Jacob G.
    Jacob G. Member Posts: 9


    The small Takagi is not a bad choice. Is there an existing hot water source? What part of the country are you in?
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