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size

Recent contents Top users
  1. P

    Feed and return pipe size

    Hello, I need some advice from the experts please. As part of a full refurbishment of our house we had a completely new heating system installed: Vaillant Ecotec Plus 630 system boiler (30kW), three heating zones (loft = 2.5kW total radiator output, first floor = 6kW, ground floor = 10kW) plus...
  2. H

    Boiler Replacement Size?

    hi Is there a guide on sizing a new condensing boiler to replace a 24kW conventional system boiler with a 250L unvented cylinder? I ask because I have been offered a range of outputs ranging from 18 through to 32kWs.
    • hengus
    • Thread
    • boiler replacement size
    • Replies: 6
    • Forum: Boilers
  3. M

    What size pipe insulations fits over 42mm compression fittings?

    Hi, All in the title really, What size pipe insulations fits over 42mm compression fittings? I don't have one at hand but need to place an order for some pipe insulation. Im thinking 54mm but not sure. Cheers!
  4. B

    What size pipe for thermostatic shower?

    Hi, I am undertaking a bathroom refit which involves replacing a bath with a walk in shower. The hot and cold feed pipes going to the bath are 22mm and I was wondering if I can use this feed for a thermostatic shower or will I need to reduce down to 15mm? Do you get showers that are 15mm and...
  5. B

    Max Kw boiler size for 3 port valve.

    Hello all, perhaps some one can tell me..is there a maximum size of kw boiler that can be used with a 3 port valve? The system is a gravity fed, 2 pipe system system with a heat only boiler. British Gas have said the 3 port valve needs replacing with 2 2 port valves as the a 3 port should not...
    • billski
    • Thread
    • boiler port size valve
    • Replies: 11
    • Forum: Boilers
  6. woodsy

    Ensuite size ?

    Been asked if there's a regulation size under building regs for an ensuite room - never really considered it
  7. M

    Water tank size

    I'm doing up my first house which is a large victorian terrace and need to install a new water tank in the loft. It only supplies the hot water system (cold is from the mains). Can anybody tell me how I calculate the size I'd need as the old one is basically an old baby's bath :blush2: The...
  8. C

    Boiler size

    Hi all. Wondering if any one can help out. We are having a new grant external blue combi fitted on a project we are working on. The total rad kW is about 12000. There is one main bathroom with poss combi fed shower. An on suite with Elec shower, downstairs toilet and kitchen. Engineer is...
    • Cchrish0
    • Thread
    • boiler size
    • Replies: 10
    • Forum: Boilers
  9. A

    Gas pipe size calculation

    Hi all! I am looking to see if anyone uses a good gas pipe size calculation app! I have been been plumbing and installing gas for over 12 years so obviously I know how to work it out long hand, I just want to see if any of these apps are worth the money to save myself time over the year! Thanks
  10. Eyespy999

    Magnaclean Micro / professional full size

    Hi all, Just weighing up the options between a micro or a full sized magna clean professional. Apart from the size and access (and price!) , is there much difference pros / cons? Thanks in advance!
  11. P

    Confused about BSP thread size

    Hi. I'm a new member so please be gentle with me! I have a narrowboat and have been experiencing some problems with the exhaust leaking fumes. I have fitted a new flexible coupling because the old bellows had split but now find that the silencer has rusted through and needs replacing. I need to...
  12. spanner

    increase pipe size

    Hi lads. Just realised I'm about to remove a Potterton combi which has 15mm gas feed. A MAIN combi going for installation and the pipe size is 22mm Pipework is totally concealed atm and there's about a 1500mm of 15mm accessible pipe run to the old Potterton Is there such a fitting or a...
  13. A

    What size boiler do I need?

    Hi everyone. I'm looking to change my Worcester 28i junior in my house as its over 10 years old now and always breaks down. I've for a 4 storey house and have a total of 9 radiators. The boiler is currently at the bottom floor, kitchen on the 1st floor and bathroom on the 2nd floor. What boiler...
    • Adrian Jones
    • Thread
    • boiler size
    • Replies: 4
    • Forum: Boilers
  14. A

    Tap flexible hose wrong size connector

    Hello, I have very little knowledge of plumbing and I stupidly bought a Grohe mixer tap from Amazon to replace an existing bathroom tap, link is here: https://www.amazon.co.uk/gp/product/B00WBIH962/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1 The flexi hoses it comes with are of a size that...
  15. 1

    Which size boiler would people recommend?

    I have a real dose of bogology on the horizon and have to first fix and install 3 en-suites (with showers), 1 bathroom (with a bath), 14 radiators, 4 towel radiators and a gas cooker along with a combi boiler - which size boiler would you experts recommend? I've never installed such a big...
    • 1-gas
    • Thread
    • boiler size
    • Replies: 14
    • Forum: Boilers
  16. D

    Gas size from small to big

    Hi, I have asked people in the gas industry this question more than once and no one can ever give me a straight answer or a reliable one. I know the reason why gas pipe should be installed from big to small. But what happens if say for example you connect 22mm gas pipe to 15mm, in terms of...
  17. R

    Advice on new oil tank size camray 5 19-26kw boiler

    Hi I have been asked to quote for a new oil tank. The house is a large 3 bed . It has a standard camray 5 19-26kw boiler. Also has an arger. I don't do much work with argers and unsure how much oil they use. The access to where the tank will go is narrow so thinking of tall thin tank. Any...
  18. A

    Shower tray replacement. With pics, size issue

    Got sent to this job last night, shower tray is cracked. needs replacing, could damage tiles but priority us getting the new tray in and worrying about the tiles after. Customer wants an "anti slip" tray. The tray is on legs. length ways wall to wall it measures 1170, allowing for what's...
  19. B

    Help with McAlpine Bottle Trap size and fitting problem.

    Hi, I am going insane with this issue. I recentrly removed a McAlpine Anti Syphon Bottle trap from my basin, and purchased an identical one from Screwfix. This is the item. http://www.mcalpineplumbing.com/1-188-anti-syphon-bottle-trap.html?id=943 But, I had to return it because I couldn't...
  20. G

    Outlet size for a 3/4" Garden tap?

    I'm trying to replace an old outdoor tap that is connected to some MDPE piping (the house is built on an old road depot and it was an existing installation). It has a "Round Mixer Tap Connector" for the hose but it leaks like crazy and when I took the tap off to have a look, I was sure there...
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