Viessmann low loss header substitution

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Canecreek
Canecreek Posts: 21
in Radiant Heating
Anyone know where I can get a Viessmann LLH for aWB2B 35?



There are plenty of substitutions out there with an air vent on top or a 1/2" npt that could be used for the header sensor but I am unsure about the well.



Is there a reason the 120/80 will not work? This header is readily available.

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  • Paul Pollets
    Paul Pollets Posts: 3,672
    LLH

    Why can't the company that sold the appliance provide one?

    The smallest LLH sold has a max flow of 17gpm.

    If the Caleffi hydraulic separator is used, the sensor can be strapped to the system supply outlet of the device
  • Canecreek
    Canecreek Posts: 21
    Viessman LLH

    Thanks Paul,



    I was ableto get a 80/60 ordered this AM with sensor
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