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Discuss Why did someone do this? in the Underfloor Heating Forum area at UKPlumbersForums.co.uk.

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  1. Vee

    Vee Plumber GSR

    I do worry about some the things I lately encounter in heating trade. Enlighten me?!!?

    !cid_17ed5021-0311-4c2b-9e37-ab1032b8ef25@icloud.jpg
     
  2. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    No idea what I am looking at withnunderfloor mate.:p:p
     
    • Useful Useful x 1
  3. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Close coupling tees it's a thing ;)

    Hydronic separation works (think of a llh)
     
  4. Vee

    Vee Plumber GSR

    Its the pipework to one of the UFH manifolds. Someone came along and thought putting a full bypassing tee between the flow and return?
    Was he just looking to impress he could afford a pressfit machine? The original callout was to tackle an issue with the hot water not getting sufficiently hot. Who ever did this did not resolve the issue. Subsequently it turned out to be a bit of air and the boiler cutting out when on low gas due to incorrect fuel/air ratio.
     
  5. Chalked

    Chalked Plumber GSR

    Won't work well, as it can pull from the flow, or return.
    Would have been better with a auto bypass between
     
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

  7. Chalked

    Chalked Plumber GSR

    I understand close coulpled tees , but you would normally have a pump on the flow from this. The way it's pipe up, it might completely bypass the mains
     
  8. Vee

    Vee Plumber GSR

    Thank you Chalked, you are right and since the introduction of this tee the heating is not functioning well anymore as all the UFH pump is doing is recirculating the water within the loops. I can see how the misinterpretation / lack of understanding of close coupling may have led to this now. There is a header on this system already by way of pipework albeit not a low loss one.
     
  9. Ric2013

    Ric2013 Plumber

    Also, surely that close-coupled tee is like having a full-bore bypass on the system (when the UFH zone valve is open, anyway)?
     
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