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systems

A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and expressed in its functioning. Systems are the subjects of study of systems theory and other systems sciences.

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  1. J

    Two pipe heating systems

    Hi all, Need some help on understanding how heating systems work. Firstly With two pipe systems I heard you are limited to the number of radiators due to the friction imposed by radiators, is that true, if so, isnt that a limitation with single pipe systems aswell? Secondly I thought there...
    • John84
    • Thread
    • 22mm bar boiler brake cable central heating system circulation connections control flow pipe plumbers pressure pump radiator radiators system systems valve valves water work
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  2. L

    Filtration Systems

    Hi, What is the best type of filtration system for use with a combi boiler? I'd like to install one to remove limescale but don't want it to affect the flowrate that much. Is it more effective to install an in-line limescale filter rather than the whole house jobbies? Cheers
  3. P

    Why I do not like PME Systems

    I once had a panic phone call from a client,she kept getting electric shocks from the taps The reason for this was SWEB had just re-laid the electric service to the properties in the road, and the cable jointer had transposed the phase and neutral, and the property being a PME electric...
    • Plouasne
    • Thread
    • cable cold cold water cold water storage courses electric industry installation job metal plumbing safe safety system systems tank training water water storage tank
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  4. S

    What do you think to solar hot water systems?

    Hi Guys A little bit of market research!!!!!!!!!!!! I am very interested to what the people of the uk think of 'Solar Hot Water systems' I am in installer but i have had very mixed reactions from the general public when i am selling the system! Please leave me some feedback to what you...
    • so-solar
    • Thread
    • air combi cylinder dhw green hose hot hot water install job newbie oil plumber price problem public solar system systems thermal unvented waste water work
    • Replies: 24
    • Forum: Plumbing Jobs | The Job-board
  5. J

    Unvented Water Systems

    Evening all. A quick question on unvented hot water cylinders. Is it possible to have a vented cold water cistern to serve cold water to an unvented hot water cylinder? I am assuming no because this could cause backflow of water due to the pressure differential between gravity and the...
    • John84
    • Thread
    • air bar cistern cold cold water expansion fitting gravity head high hot hot water mains open vented power pressure pressurised pump shower system systems unvented valve vessel water
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  6. N

    Leak detection in central heating systems

    I wonder if any forum members have experience of modern leak detection systems as I would be interested in their views and experiences. The query is triggered by a leak on a pressurised domestic central heating system. It drops about half-a-bar in 24 hours. The pipes serving the downstairs...
    • Nimrod
    • Thread
    • air air test bar boilers central central heating combi concrete damage detection funny heating leak no water pipe pipes pressure pressurised radiators system systems temperature test water work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  7. J

    open vented systems without a feed and expansion tank.

    Hi, I would like information on open vented systems which do not have a feed and expansion tank and have a small cylinder approx a foot high and 8 inches dia,often situated above the hot water cylinder.This small cylinder has three pipes attached and a float type automatic air release valve, one...
    • jimbo639
    • Thread
    • air boiler central heating system cold cold water cold water storage cylinder expansion high hot hot water hot water cylinder open vented pipes pressurised system systems tank valve vented water water storage tank without
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  8. A

    old high rise sanitary systems

    Can anyone please tell me what type of system this is and what are the advantages of doing it like this???
  9. N

    Commercial Heating systems

    Hello im a lecky and i often have to go and suss out problems with the heating in office blocks and NHS buildings etc, in their boiler rooms which may have 3 separate boilers, many different slippervalves, boiler control panels usually trend or RIOH. Does this site have a section or members...
    • NickyTesla
    • Thread
    • bits boiler boilers central central heating system commercial control header hose installation internet parts piping problem system systems valves waste
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  10. Dan

    Underfloor Heating Systems

    Underfloor Heating UK - Underfloor Heating Installers, Suppliers & Servicing have always had work off me. I used to be an electric underfloor heating supplier and used to send any wet heating systems enquiries to these guys. Top blokes. Should do trade too I think.
    • Dan
    • Thread
    • bathroom cold electric heating installers kitchen system systems temperature tiles trade ufh under floor heating underfloor underfloor heating work
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
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