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Combi boiler installation

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  • 04-01-2024 11:28pm
    #1
    Pinoy adventure
    Registered Users Posts: 985 ✭✭✭


    Hi all

    recently had a plumber out giving us a quote of a viesmann combi boiler.

    he said we won’t need a cold water storage tank up in the attic and will feed the boiler from the mains,


    another plumber said I would need a water tank up in the attic with a pump pumping down too the new combi boiler,


    the pump is Scala 2 and cost about €600,so just seen which option is best ?


    any advise

    thanks



Comments

  • Options
    #2
    embracingLife
    Registered Users Posts: 401 ✭✭embracingLife


    So what happened? Surprised nobody replied to your post



  • Options
    #3
    Kaisr Sose
    Registered Users Posts: 3,195 ✭✭✭Kaisr Sose


    https://www.boards.ie/discussion/comment/122135447#Comment_122135447

    I hope it was option two as one is not compliant with regulations.



  • Options
    #4
    Sleeper12
    Registered Users Posts: 16,928 ✭✭✭✭Sleeper12


    A good plumber would have told you option two is best for reliable performance & option one is against the building regulations.

    For thermostatic showers and mixers to be able to work they need equal pressure. This means hot & cold running through the pump. Pressure reduction valve needed on any plastic box on the wall power shower



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