Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Checkout our Plumbers Insurance area - heavily discounted Public Liability Insurance and Van Insurance specifically designed for plumbers.

Discuss ASHP ufh 150mm pipe centres??? in the Underfloor Heating Forum area at

Thread Status:
Not open for further replies.
  1. tridimnaw

    tridimnaw Member

    Hi all, ive installed a fair few ufh systems now, all of which are onto oil boilers. Im starting a ashp system next week and was wonderimg how you all loop the pipe to 150mm centers. So far ww have hand formed the loops to 200mm centers but im not confidend of hand forming beyond that!! Does anyone one have a tool ir tricks thry use??
  2. SimonG

    SimonG Trusted Plumber

    What pipe you using?
  3. tridimnaw

    tridimnaw Member

    Its the mlcp that comes with the reliance manifolds from grahams, similaf to maincor as thats what we used to use
  4. Matchless.plumb

    Matchless.plumb Trusted Plumber GSR


    What type of floor do you have ? Do you use any floating sheets?

    We used to build a former out of plywood. It took us 1/2 hour but the distance between the pipes were 200mm.
  5. Chalked

    Chalked Plumber GSR

    IMG_0005.GIF Use a counter flow layout. Go into the room, run round the perimeter, run round at 200mm centres, get to the middle and come back out.
    No problem getting 100 centres. Works better too.
    • Like Like x 3
    • Agree Agree x 2
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    love the snail method and you get better return temps
    • Like Like x 1
  7. DougFIDHEE

    DougFIDHEE New Member

    The straight runs are obviously no problem; when you get to the turn form a light bulb shape and carry on. if the outer curves of the light bulb shape are close together don't worry--far better than kinking the pipe!
Similar Threads - ASHP 150mm pipe Forum Date
New boiler with option of ASHP later? Central Heating Forum Apr 9, 2019
Boilers that allow air intake 150mm from opening Gas Safe Registered Plumbers Only Jun 7, 2019
Thread Status:
Not open for further replies.