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pipework

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  1. J

    Commercial meter/pipework, an ECV and a domestic boiler

    Evening all! I am a domestic engineer and I have been asked to swap an existing domestic boiler which is part of a commercial system. Think keeping the office warm but they need commercial gas to run their kitchens. My question is: If there's is an ECV downstream of the existing boiler, can I...
    • Jerry
    • Thread
    • boiler commercial meter pipework
    • Replies: 4
    • Forum: Boilers
  2. B

    Pipework under sink and bathroom basin with pics query

    Hi everyone, I took pictures to better illustrate my questions and hope it helps. The hot water pipe under the sink (top pipe) has a valve on it with the number 15 on it and the cold pipe (under top pipe) has a stopcock which stops the water coming into the kitchen sink. Does the cold pipe...
  3. K

    Clicking / banding radiator pipework under floorboards

    Long story short - the pipework in all my upstairs bedrooms are now suddenly ticking / knocking under the floorboard when I switch the heating on (for a good few minutes) and the same again when I switch it off (lasts longer) Nothing has changed since a few years ago when we changed the...
  4. T

    Radiator change on large pipework

    Hi, I have 1 radiator in the house where the radiator is on a different diameter pipework. The rest of the house is 15mm but this could be 22mm, I'm not sure. I want to replace this radiator with a new one and if possible I dont want to disturb the original parkay flooring. What do I need to...
  5. S

    Bringing pipework through ensuite floor

    When bringing pipework through the floor of the ensuite, I wonder just how tight I need to make the fit between the floor and the pipework? I have seen a previous comment about getting the fit as tight as possible, but I’m not sure why that is necessary? Reason I ask is that it will be a PITA...
  6. P

    Hot water keeps drawing in air, pipework incorrect?

    Hi lads and lasses, I have this customer that has to keep forcing mains pressure back through his vented hot water system every week due to a blockage or air as he explained it. He said it has been like it since he has moved in but has got progressively work he has been there for around 6 years...
  7. A

    Location of megaflo in overall household pipework?

    Hi all. If you were retrofitting a Megaflo with system boiler, would you be wanting to have a direct mains water feed going into the Megaflo first and then the feed continuing into the rest of the house or doesn't it matter? At the moment, the mains water go straight into the kitchen (where the...
  8. Sid Viscous

    Persistent air issue in pipework through loft

    Evening chaps, I'm having a bit of a mare with a pumped shower I fitted a few months back. The customer had an existing gravity shower fitted & wanted a pump fitting. I put an RP75PT in the loft on the original pipework, a Surry flange on the cylinder and AAVs on the positive side of the pump...
  9. S

    Buying a boiler to fit existing pipework

    Hello I have a valiant eco tech pro 286-33 which isn’t quite 10 years old , and after repairing it several times I’ve now accepted I’m flogging a dead horse and I need a new one . Trying to keep costs down I would like to shop around and source my own boiler but it occurs to me that if the...
    • skint
    • Thread
    • boiler pipework
    • Replies: 7
    • Forum: Boilers
  10. C

    pipework query, pump feeding pump?

    Hi, we have an oil boiler which feeds HW, rads, and two UFH heating circuits using 4 zone valves and 2 pumps. Would anyone have a look at the photo and tell me if its right that the green pump has to be on to feed the UFH mix pump? Could the UFH pump have been teed in parallel with the green...
  11. T

    Blocked pipework in potable water supply

    Dear all, I'm hoping you can help with this because our plumber is trying hard but he's struggling to solve the problem. I'll describe the system. The water enters the apartment in a washing machine cupboard. At the inlet and at the washing machine the pressure is high. The pipework then...
  12. K

    Avoiding airlocks in central heating system teeing off from the main pipework

    central heating radiators to feed upstairs and downstairs main paperwork runs in ceiling void downstairs ,need to tee off to radiators downstairs do I tee off from above or below on the main pipework to avoid airlocks
    • Kevo
    • Thread
    • central central heating heating heating system main pipework system
    • Replies: 1
    • Forum: Central Heating Forum
  13. A

    38kw combi boiler supplying a shower. 22mm or 15mm pipework?

    38kw combi boiler supplying a shower. 22mm or 15mm pipework? I am refurbishing a 1st floor bathroom and installing a shower to replace a bath and have a 22mm/15mm pipe quandary. There is currently a newish Worcester Greenstar 38CDi Classic combination boiler and my question is should I redo...
    • Ahearsum
    • Thread
    • boiler combi combi boiler pipework shower
    • Replies: 6
    • Forum: Boilers
  14. Scott_D

    Shower recommendations for exposed pipework

    I need to fit a thermostatic mixer shower (replacing electric) in an existing bathroom. This means the pipes will need to drop down from the loft in chrome. Any recommendations for a nice shower that doesn’t need the stand off kit?
  15. B

    Pipework from a danesmore condensing boiler

    Hello, Work was undertaken in 2017 in which pipework from a new condensing boiler was routed through an external wall and then connected to the existing pipework of the underground copper oil feed pipe. Should the system be pressure tested after completion. If so, would it be tested at the oil...
  16. J

    Should I replace central heating pipework.

    Hi This is my second question and follows on from discoveries made while investigating dropping flow rates where you guys contributed a lot. I have made an access point to the crawl space and had a look around. Let me say at this time we are a living in a cottage so all is on one level. A...
  17. L

    Toilet near boiler and pipework

    Looking for advice. First of all, i have a combi boiler in a utility room, can i fit a toilet next to/under the boiler? Is it safe etc? And also need advice on where to run the soil pipe. On the photos, the red circle and line is where the soil pipe would exit/run. Can i run it to the thick...
    • Leon81
    • Thread
    • boiler pipework toilet
    • Replies: 7
    • Forum: Boilers
  18. G

    Main eco Compact 30kw question on rear pipework.

    Ive heard its possible to get the pipework up the back of this appliance by removing a baffle fitted to the boiler. Is this correct? Im having trouble getting it to fit inside a very tight cupboard with the standard stand off jig fitted. Ive been looking at the sizes on the website only and...
  19. O

    CH radiator routing pipework from ceiling around joist tight to the wall

    Hi All, 1st post on here and hoping someone can help out. Im in the early stages of a garage conversion; I've temporarily hung the vertical radiator where its planned to go and my plumber has routed a couple of feed and return pipes in ceiling; i've attached a couple of photos showing the...
  20. O

    CH radiator routing pipework from ceiling around joist

    Hi All, 1st post on here and hoping someone can help out. Im in the early stages of a garage conversion; I've temporarily hung the vertical radiator where its planned to go and my plumber has routed a couple of feed and return pipes in ceiling; i've attached a couple of photos showing the...
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