Which boiler for a long flue?

Discussion in 'Plumbing and Central Heating' started by welshboy166, 14 Feb 2011.

  1. welshboy166

    welshboy166

    Joined:
    10 Nov 2008
    Messages:
    16
    Thanks Received:
    0
    Location:
    London
    Country:
    United Kingdom
    We're refitting our house and have decided to locate our boiler on an internal wall (decision came down to kitchen design and more). This means that the flue would need to travel between 3.5 and 5m with a max of two bends in it (one to go horizontal to outside and then one to go vertical once outside if necessary). The boiler will need to power two bathrooms and the heating system. Can anyone recommend a brand of boilers that work well with this length of flue as I've only seen that Keston do flues of this length but have read on here that Keston are not the best brand?

    Thanks in advance.
     
  2. Sponsored Links
  3. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    Do not under any circumstances buy a Keston!

    ATAG with 80mm twin flue works for me ;)
     
  4. mehran

    mehran

    Joined:
    27 Jan 2007
    Messages:
    3,550
    Thanks Received:
    613
    Location:
    Cleveland
    Country:
    United Kingdom
    intergas can have a 10m+ flue with a standard 60/100mm flue
     
  5. Morris40

    Morris40

    Joined:
    9 Jan 2011
    Messages:
    231
    Thanks Received:
    29
    Location:
    Middlesex
    Country:
    United Kingdom
    Valliant will happily cope with that length of flue and much longer, and as stated before, DO NOT BUY KESTON
     
  6. Sponsored Links
  7. towan

    towan

    Joined:
    28 Mar 2010
    Messages:
    185
    Thanks Received:
    42
    Location:
    Devon
    Country:
    United Kingdom
    most makes of boiler should be ok. looking at you longest lenght of 5 m with a meter for each bend, which gives a total lenght of 7 meters. Most boilers can go further than that.
     
  8. kirkgas

    kirkgas

    Joined:
    26 Dec 2007
    Messages:
    4,851
    Thanks Received:
    463
    Location:
    Lanarkshire
    Country:
    United Kingdom
    if you intend to box the flue in it will require to have inspection hatches on it, from april 2012 might be worth remembering
     
  9. Andygasman2010

    Andygasman2010

    Joined:
    3 Mar 2010
    Messages:
    2,182
    Thanks Received:
    205
    Location:
    Middlesbrough
    Country:
    United Kingdom
    It it a combi you're looking for? If it's serving two bathrooms you may want to consider other options.
     
  10. digdilem

    digdilem

    Joined:
    27 Dec 2010
    Messages:
    413
    Thanks Received:
    58
    Location:
    Devon
    Country:
    United Kingdom
    Individual manuals will give max length, but remove 1m for each angle joint.

    Mine's running for 8m with two angles up an inside wall into the loft and out through an end gable. Max run for this conventional Baxi is something like 12m twin tube. The sections are expensive (~£40 quid a meter, similar per elbow) but it allowed me to solve a tricky problem.
     
  11. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page