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New Viessmann 222F rough-in

Paul Pollets
Paul Pollets Member Posts: 3,658
Trying out the first 222F cabinet model condensing boiler with built in 316Ti stainless DHW tank. The unit requires a "side piping package" and in this case, is connected to 8 wall panel radiators, without need of a low loss header. The internal pump will handle the load. Vented with PPE through the roof.


  • Le John
    Le John Member Posts: 226
    That looks

    Like a big foot print. What are the dimensions of that unit.
  • SWEI
    SWEI Member Posts: 7,356

    Just a shade under 24" square.  64" high.
  • Jim Godbout
    Jim Godbout Member Posts: 49
    New Viessmann

    We used a few and they are a nice alternative in some replacement jobs such as aging heat makers fit well in same location

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