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British Gas Combi boiler install.

I thought you guys may enjoy a wee look at a standard install here in Scotland. My day job is New Build Housing Plumbing, Heating & Gas.


  • Steamhead
    Steamhead Member Posts: 15,751
    Vaillant- there's a name I haven't seen in a while. They disappeared from the States maybe 25 years ago.

    I have an old book from 1907 that mentions European installers prefer to bend copper pipe rather than using fittings- looks like that's still a thing there. Go here to see the article from that book:

    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • HeatingScotland58
    HeatingScotland58 Member Posts: 3
    Thanks for sharing that, very interesting👍
    Yup Vaillant are still a very popular boiler manufacturer here in the UK, along with many others.
    Our new ‘hot water’ boilers are all condensing, with an optimum ‘supply’ temperature of around 50-60C & a DeltaT of around 20C.
    These are basic 2-3 Bedroom homes on Nat Gas.

    I’m also currently working on another project with £1.5M homes with Air Source heat pumps, also by Vaillant, with the heat pump being the primary source of Central Heating, with very large radiators & operating at very low surface temperatures.
  • psb75
    psb75 Member Posts: 631
    Seems like air-source heat pumps would be a good match for UK climate. Large radiators and lower supply water temps also a good match.
    Not-so-much for northern New England where mfg. are also trying to promote them. Maybe for spring/autumn heat and summer AC. On second thought....Global Warming winters are coming! "Be the first in your neighborhood!"