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  1. M

    Incoming water main sizing

    We have a project starting soon of 60 flats. We have applied for a new incoming water main to the building to house the meters internally. We have been asked to size the incoming main and also provide a peak maximum flowrate before the water board will provide a quotation for the works. Does...
  2. 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...
  3. A

    Is the my main water shut off?

    Hi, I'm trying to identify my main water shut off/stopcock in my house. For someone reason, the water meter is upstairs and I'm wondering if this is the shut off next to it? View: https://*********/a/ngeOrvv I know my neighbour shuts the water off from the street, when needed, so I guess...
  4. G

    install new water main pipe . Help on finding right insulation

    Hi, I`m on the process to replace my old main water main with a brand new MDPE 25mm. Anglia Water advised to put pipe it into a duct and then insulation. Does anyone know what type of insulation need to be used? Many Thanks
  5. J

    Advice? Gas meter and main supply valve newly enclosed after house extension.

    Hi, wondering if anyone can offer some advice? We just had an extension in the light-well house (lower ground floor), installing a glass roof to the light-well. This is where our gas and electric meters are, as well as the main supply valve. My concern is that this area used to be open and well...
  6. J

    Ignition issue Main Eco 30 Combi boiler

    Hi All, I have a Main Eco 30 Combi boiler I was fitted about 7 years ago, the whole pipe work is new and radiators. I have so far replaced the electrodes since it was old and bent (it was working but I wanted to avoid it failing), the heat exchanger was hoovered and the seal was replaced, the...
    • Jam007
    • Thread
    • boiler combi combi boiler main
    • Replies: 18
    • Forum: Boilers
  7. J

    Ignition delayed/explosive Main Combi

    Hi All, I have a Main Eco 30 Combi boiler I was fitted about 7 years ago, the whole pipe work is new and radiators. There is one thing that annoys me on my boiler is that when ever is ignites it makes a small tiny explosive noise you can hear it from far 😫 I have so far replaced the...
  8. A

    Main 30 HE losing pressure after central heating heating been on

    Good Afternoon folks. Thanks in advance for any advice. I have a main 30 HE Combi. It loses pressure down to zero after the central heating has been on. If I start the day on 1 bar, it holds fine. Run the hot water/have a shower etc pressure goes up, then returns to 1 bar when turned off and...
  9. S

    Main Combi 30 HE leaking

    Hi, we have the aforementioned boiler and for quite a while now it’s leaked from the valve pictured. It drips down through the handle onto the bench below causing it to be damaged. Does anyone know what the valve is called, if you can get replacements and is it fairly straight forward to do? I...
  10. P

    What "key" for this main stopcock?

    After fixing a mixer tap in the kitchen and struggling with stockcock under the sink, it occured to me that I did not know where the main external stop valve for my property was. After having a look around today, I have found it just over the boundary in next doors garden and when I lifted the...
  11. Bryan in Wyo

    Main Drain Connection Failure/Mess (cast iron and clay)

    Hello all, I have a mess and quite the project on my hands here. I am a handy guy but this is outside my comfort zone. I think my comfort zone is gonna expand after this project because i have no option to hire this out... I am hoping to get some advice and guidance during this research so...
  12. petehuws

    Mitsubishi Ecodan 8.5KW one zone gone offline and missing from main controller

    Hello Experts, hoping this is easy to understand. Last year it was no problem, but this year we seem to have lost one of our Ecodan heating zones. Zone 1, configured as Underfloor heating Zone 2, configured as Radiators. We have lost Zone 1 for the underfloor heating, zone 2 radiators and the...
  13. P

    Main 30he flashes low pressure or pump

    Hi Please help I have a problem with the boiler main 30 he flashes low pressure or pump usually if it is switched to central heating I note that sometimes central heating and hot tap water go back to normal by themselves or after turning the prv. I checked or fixed: reconditioned diverter valve...
  14. B

    Main Medway replacement

    Hi everyone, I need to replace a Main Medway Super water heater, as these are now obsolete can anyone give me a idea of a decent replacement, it serves 3 hot taps. Many thanks BigJake
  15. S

    MAIN combi ECO 30 problems. help pls.

    Morning, after some advice please. I have a MAIN combi ECO 30 , its been in for nearly 9 years. historically its randomly fired up as though you are calling for hot water – but when no tap is actuated. This would happen a few times a week and last less than a minute. Since last week I have now...
  16. Craig Chamberlain

    Water main sizing advice please

    Hi, I have recently moved to a farmhouse in central Scotland and the other day our closest neighbour accidentally burst our water main with a JCB. The main is a 1” MDPE pipe running about 500m from the water company roadside main to our farmhouse. This was installed about 20 years ago. The...
  17. H

    Shower going from hot to cold - Main Combi 24 Boiler

    Hey everyone, I'm hoping for some help/advice with my shower. I've a Main Combi 24 boiler, and my shower is from a mixer tap over the bath. When the boiler flame lights, the shower will be hot almost instantly, but a few minutes into the shower it'll go completely ice cold. I'm then soaped up...
  18. C

    Air in gas main

    Hi guys, running out of ideas for a site I'm currently working on. In brief, got a 4 year old school with air in the gas main in the science labs. For 4 years the teachers have been purging the gas in the science labs for about 10mins before they can use the bunsun burners. The next day they...
  19. P

    Main Combi HE 30 boiler

    Hi Everyone. My boiler has recently started playing up. When using the shower or hot water the boiler fires then cuts off for a couple of seconds then fires again. Resulting in Luke warm/cold water. I’m guessing it might be the heat exchanger as the boiler appears to be louder than usual. Any...
    • Phil01
    • Thread
    • boiler combi main
    • Replies: 7
    • Forum: Boilers
  20. P

    Main equipotential bonding to gas supply

    Hi all, electrician from the dark side looking for your views please. Background- We are working on an unusual job, bit of a mini castle converted into flats. Gas has been installed in five flats (not recently) but have never been fitted with main equipotential bonding. We’ve looked at the...
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