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Discuss Megaflo Or Combi not sure ? in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Stants

    Stants Member

    Hi I was convinced / happy to go with a Megaflo ( or similar) but keep getting ask why not a Combi
    Set up to be as follows
    1 bathroom ( with shower mixer )
    1 ensuite with shower
    Small extension ( small 4 bed house ) going to uprate water into house already have a goodish pressure and flow ... in the past have always thought that combis seem to lack pressure but are they an option now
    Cheers
     
    Last edited: Aug 15, 2018
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    If the second bathroom has a mixer shower then unvented set up is my recommendation
     
    • Like Like x 2
    • Agree Agree x 2
  3. Stants

    Stants Member

    Yeah the ensuite is just a mixer shower no bath ( wet room )
     
  4. scott_d

    scott_d Plumber GSR

    Unvented cylinder if you have the flow, pressure, money and space

    Combi if not
    A high output combi will do the job but you will have reduced hot water when multiple outlets are open.
     
    • Like Like x 2
  5. AMGasServices

    AMGasServices GSR

    I agree with Scott_d.
     
    • Like Like x 2
  6. Riley

    Riley Plumber GSR

    Combi will barely cope with two outlets. Unvented!!
     
    • Like Like x 2
  7. Gasmk1

    Gasmk1 GSR

    storage combi like the viessmann 111
     
    • Agree Agree x 2
    • Like Like x 1
  8. Stants

    Stants Member

    That's what I've always thought but everyone ( who has a Combi ) I've spoke to says " get a Combi .. there great " ask about running 2 outlet at a time say " no worries " .. think I'll spend the extra go unvented plus added bonus of back up immersion
    Cheers
     
    • Agree Agree x 1
  9. Jim Goodenough

    Jim Goodenough Plumber

    Unvented Stants, you'll never regret it. :)
     
    • Like Like x 2
  10. Rob Foster

    Rob Foster Top Contributor!!

    combi's in this situation are not as good as unvented. Some tradesmen will recommend a combi cause they arn't qualified to do the other
     
    • Like Like x 1
  11. townfanjon

    townfanjon Trusted Plumber GSR Top Contributor!!

    +1 or a 222 even better
     
  12. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    Looks at the Vaillant unvented cylinder as well mate. Not a bad bit of kit.
     
  13. Matchless.plumb

    Matchless.plumb Trusted Plumber GSR

    Vaillant 938 best option. No need of cylinder.
     
  14. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    you do realise the 938 has a cylinder :D
     
    • Agree Agree x 1
  15. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    I would still go with separate boiler and cylinder
     
    • Agree Agree x 1
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