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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. PennyR

    Continuous Flow Hot Water System - Highest Temperature

    Hey all, I'm setting up a small brewery and need the ability to have instant hot water at decent flow rates. I've been looking at commercial options but I was wondering if anyone can recommend a good unit that can get unto 80? Appreciate any guidance!
    • PennyR
    • Thread
    • america australia flow highest hot hot water hot water system system temperature usa water
    • Replies: 2
    • Forum: USA
  2. M

    Testing central heating system for sludge

    Is there a device where you can bleed the system water in to and look through it like a little tube and if you can see the circle at the bottom its clean. If not it needs flushing.
    • Matt0029
    • Thread
    • america central central heating central heating system heating heating system sludge system testing usa
    • Replies: 18
    • Forum: USA
  3. R

    Bypass Valve on S-Plan Installation CH system

    Just a quick one folks. Should there be a bypass valve at the ringed location in the attached picture? Between the pump and the CH/HW valves? Thanks
    • RayPooley
    • Thread
    • america bypass bypass valve installation system usa valve
    • Replies: 7
    • Forum: USA
  4. I

    Commercial high pressure system, will hep couplings be stong enought?

    I am having to work on a concealed shower but there is no service valve and so I am having to isolate from a large mixing valve which is linked to several other showers. I am going to add a service valve to make it easier for future maintenance but the pipe connected to the shower is 15mm...
    • Illuminate
    • Thread
    • america commercial couplings high high pressure pressure system usa
    • Replies: 9
    • Forum: USA
  5. ecm200

    Installing a Drayton Wiser 3 kit with an S plan 2 zone CH + HW system

    Objective: I have an existing s-plan plus (see below for details) heating and hot water system, with 2 independent heating zones. There is a separate programmer and a simple room thermostat for zone 1 and programmable thermostat for zone 2. I have purchased the Drayton Wiser 3 zone kit and...
    • ecm200
    • Thread
    • central heating system drayton forum hw system installing plumbing s plan system wiser zone
    • Replies: 1
    • Forum: Plumbing Zone
  6. I

    Problems with hot water in a pressure system

    Hi, We recently had the pressure tank replaced in our system as the old one started leaking. Since the replacement, I've seen two problems. The first is that there is a loud knock when the tap is turned on. I believe this is because there is air in the system? Secondly, when the heating is on...
    • iq2000
    • Thread
    • america hot hot water pressure problems system usa water
    • Replies: 0
    • Forum: USA
  7. P

    Complete central heating system setup - advice please

    Hi there, please help dont have a clue how to set this up. Ive recently installed a complete new central heating system in my house myself. The system is up and running and works okay but I feel it could work alot better if it were setup properly. Im not a plumber and really understand how parts...
    • phill bri
    • Thread
    • advice america central central heating central heating system complete heating heating system please setup system usa
    • Replies: 22
    • Forum: USA
  8. P

    Pressure too high in open vented system

    Hi Guys, Hopefully someone can help me out - the pressure reading on my boiler and in the hot press seems too high. Just wondering how can this be adjusted? Hot Press: Downstairs boiler: Any help would be greatly appreciated
  9. B

    Which system would you choose?

    4 bed semi-detached barn conversion over 3 floors. 18 radiators, two bathrooms, one d/s cloaks. Any pros and cons to the below system boiler set ups? Which would you choose? Want to be able to run two showers simultaneously without an issues. Option 1 Vaillant ecoTEC Plus 624 Gledhill...
  10. L

    Black flow meters on new CH system

    Hi Is it normal to have very black UFH flow meters on a relatively new manifold (see image)? (Note the two clear flow meters on the LHS are for circuits which are not yet operational, so no water flow through them as yet.) Background is that I have an unvented system boiler CH system...
    • LE4R
    • Thread
    • america black flow flow meter meters new system underfloor heating usa
    • Replies: 10
    • Forum: USA
  11. M

    Effect of pipe sizing in heating system

    Current system Danesmoor utility installed in outbuilding. Flow/return connections on the boiler are each 1.5" BSP then straight into 32mm copper for a run underground of approx. 20m to the house. Main pump at boiler is UPS 25-55. Proposal is to replace old boiler with Hounsfield Tuscan 26/30...
    • Max
    • Thread
    • boiler boilers central heating system flow flow and return heating system pipe pump sizing system
    • Replies: 0
    • Forum: Central Heating Forum
  12. O

    Bigger size Combi Boiler or Megaflow System?

    Hi All, Firstly Happy New Year to everyone! New to the forum and was after some advice please. I am having renovation work done to my property starting next week. As part of the renovation work I am having two additional bedrooms in the loft (dormer). The property currently is a 3 bedroom...
    • Optimiser1981
    • Thread
    • america bigger boiler combi combi boiler megaflow size system usa
    • Replies: 1
    • Forum: USA
  13. J

    Help understand my hot water system, and is efficient for my needs?

    We have moved into a large, old house and the bills are very high. I'm trying to figure out the most efficient way to manage the hot water. In the cellar is an Indirect Hot Water cylinder, controlled by a Honeywell Smart thermostat, and powered by a relatively new 48kw Worcester boiler. The...
    • JonnyH
    • Thread
    • america efficient help hot hot water hot water system needs system understand usa water
    • Replies: 1
    • Forum: USA
  14. R

    Should removal of old system boiler be complete inc tanks?

    Just bought a property that needs lots of work doing so decided CH to be the first to start with. Old system was 20yrs old so decided on a 35Kw Ideal boiler to be installed by a Gas safe installer. Despite fairly shoddy work in places the boiler seems to function OK but when I went into the...
  15. L

    Is a pool heat exchanger suitable for a communal heating system?

    Hello all and Merry Christmas, We are in the process of planning the replacement of our 50-year old heating boiler serving a residential block of 12 flats with a total of 60 radiators. It is a vented single-pipe heating system, which has not been properly maintained, and we only recently...
    • LordWest
    • Thread
    • communal exchanger heat heat exchanger heating heating system pool suitable system
    • Replies: 32
    • Forum: Central Heating Forum
  16. P

    Y plan system 3port actuator issues

    Hi After a home emergency insurance call the engineer to replaced the actuator motor a the 3port shoes (I watched him replace it) he plugged the header tank so he didn’t have to drain the whole system and replaced the whole motor and the shoe all be it a different model but it did the job...
    • Plumbcare
    • Thread
    • actuator america help needed issues system usa y plan
    • Replies: 1
    • Forum: USA
  17. H

    Pressure loss in Heating System post fitting new Expansion Tank

    Hi, hope someone can help me with a heating pressure loss problem. My valiant boiler has been loosing pressure over the last few months, resulting in me having to top up the water every week or so. Managed to get a boiler engineer to visit who diagnosed a faulty expansion tank. (Water evident at...
    • Hoppers
    • Thread
    • america central heating system expansion fitting heating heating system new pressure pressure loss system tank usa
    • Replies: 26
    • Forum: USA
  18. D

    Regular boiler replaced with Bosch 25i system

    Quick question - our old regular boiler was just replaced after it failed. They installed a new Bosch 25i system boiler instead. I don’t really understand the details, but they say they fed it from the attic tank and so I should ignore the fact the pressure gauge is at 0. I think it is designed...
    • David B
    • Thread
    • boiler bosch regular replaced system
    • Replies: 12
    • Forum: Central Heating Forum
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