1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Is there a maximum 15 mm pipe length from the 22 mm ring?

Discussion in 'Plumbing and Central Heating' started by llChopperll, 29 Jan 2017.

  1. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,603
    Thanks Received:
    3,751
    Location:
    Lanarkshire
    Country:
    United Kingdom
    Talking absolute shoite as per usual Tony
     
  2. Sponsored Links
  3. Agile

    Agile

    Joined:
    26 Jun 2004
    Messages:
    63,560
    Thanks Received:
    4,511
    Location:
    London
    Country:
    United Kingdom
    The OP asked for "constructive" advice.

    It is postings like yours which get so many recent threads locked.
     
  4. Steelmasons

    Steelmasons

    Joined:
    10 Oct 2011
    Messages:
    16,405
    Thanks Received:
    3,969
    Country:
    United Kingdom
    The above mis-leading advice is the reason threads get locked , had you of given the correct advice Ianmcd would have had no reason to question it.
    Advice from non professionals like yourself would be the reason these threads get locked.
     
    • Thanks Thanks x 1
  5. Steelmasons

    Steelmasons

    Joined:
    10 Oct 2011
    Messages:
    16,405
    Thanks Received:
    3,969
    Country:
    United Kingdom
    What constructive advice have you given with regard to this thread??
     
  6. Agile

    Agile

    Joined:
    26 Jun 2004
    Messages:
    63,560
    Thanks Received:
    4,511
    Location:
    London
    Country:
    United Kingdom
    Hopefully, most school boys know the "i" before "e" spelling rule!
     
  7. JohnD

    JohnD

    Joined:
    15 Nov 2005
    Messages:
    60,018
    Thanks Received:
    3,096
    Location:
    Dunfermline
    Country:
    Cook Islands
    hope not, because in English there are so many exceptions, so it is no longer widely taught.

    Neither is it efficient to forfeit the heights of respect from foreign neighbours when they realise the weight of your beige cardigan.

    It may seem weird, but you just have to seize the opportunity.

    Drink your caffeine. It's all science.

    In English, you have to learn to spell.

    Other languages are more logical.
     
  8. Steelmasons

    Steelmasons

    Joined:
    10 Oct 2011
    Messages:
    16,405
    Thanks Received:
    3,969
    Country:
    United Kingdom
    I don't abide by that rule so a moot point.
     
  9. gigz

    gigz

    Joined:
    7 Oct 2006
    Messages:
    6,978
    Thanks Received:
    1,408
    Country:
    United Kingdom
    Never mind the "i" before the "e", where did the "of" come from ? :whistle:
     
    • Like Like x 2
  10. Sponsored Links
  11. Agile

    Agile

    Joined:
    26 Jun 2004
    Messages:
    63,560
    Thanks Received:
    4,511
    Location:
    London
    Country:
    United Kingdom
    I still take the view that the advice I gave was exactly what the OP will understand and can make use of.

    But only he can decide on that.
     
  12. Steelmasons

    Steelmasons

    Joined:
    10 Oct 2011
    Messages:
    16,405
    Thanks Received:
    3,969
    Country:
    United Kingdom
    The advice you gave the OP was incorrect , whether it is understood is neither here nor there.
    I clearly understood what you said regarding the max load for 15mm tube being 3kw...I also understand that what you said was complete and utter nonsense.
    Hopefully you will exactly understand what I have said.
     
    • Thanks Thanks x 1
  13. DP

    DP

    Joined:
    10 Dec 2003
    Messages:
    12,099
    Thanks Received:
    2,305
    Location:
    Glasgow
    Country:
    United Kingdom
    Does warrantee ring a bell:whistle:
     
  14. Dan Robinson

    Dan Robinson

    Joined:
    1 Jul 2007
    Messages:
    56,042
    Thanks Received:
    9,422
    Location:
    Hertfordshire & London
    Country:
    United Kingdom
  15. Dan Robinson

    Dan Robinson

    Joined:
    1 Jul 2007
    Messages:
    56,042
    Thanks Received:
    9,422
    Location:
    Hertfordshire & London
    Country:
    United Kingdom
    Conscience
     
  16. llChopperll

    llChopperll

    Joined:
    17 Feb 2015
    Messages:
    5
    Thanks Received:
    0
    Location:
    Staffordshire
    Country:
    United Kingdom
    Hi All,

    I detect a bit of animosity here.
    Excuse me for asking but with regards to my original query is it okay or not?
    I'd appreciate a layman's answer if possible.

    IIChopperII
     
  17. slippyr4

    slippyr4

    Joined:
    12 Jul 2005
    Messages:
    994
    Thanks Received:
    30
    Location:
    Bedfordshire
    Country:
    United Kingdom
    It'll work, just about. It's pushing it though. You'd be best doing a separate run for each radiator if you can. You may well have to balance other radiators to get the new ones to heat up well (see the FAQ at the top of this forum).

    The "debate" above is because a pipe can only flow a certain amount of heat (energy) - proportional to the amount of, and temperature of water that flows through it. If the temperature is relatively fixed (the boiler's flow temperature) then that amount of heat is proportional to the velocity of water through the pipe. The velocity goes up the harder the pump pushes, but so does the noise. The longer the pipe run, the more resistance to flow their is and the slower the water will go.

    It's quite complex fluid dynamics. That's why there are "rules of thumb" which are based on experience of what works and what doesn't. However, it is completely and utterly irrelevant what kind of boiler you have.
     
Sponsored Links
Loading...

Share This Page