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Low Pressure In Heat Only Boiler

  • 16-04-2025 09:08AM
    #1
    Registered Users, Registered Users 2 Posts: 7


    Hi all, wondering if anyone can help me to identify the filling loop in my boiler setup.

    The Glow worm heat only boiler is located in a cupboard in the kitchen and has an external pressure gauge which is showing a value of around 0.6 bars. There is only 1 yellow valve on the bottom of the boiler and no clear filling loop.

    Boiler main.jpeg Boiler bottom.jpeg Boiler top.jpeg

    We also have 2 tanks in the hot press upstairs but no clear valves that I can identify.

    Hot Press.jpeg

    Any help would be greatly appreciated, thanks.



Comments

  • Registered Users, Registered Users 2 Posts: 6,125 ✭✭✭greasepalm


    I would have expected to see a dial gauge in there on the pipe as when you turn on the tap it adds more water and then turn off water.



  • Registered Users, Registered Users 2 Posts: 7 HarryG1995


    Okay thanks for taking a look, a dial gauge in the hot press itself?



  • Registered Users, Registered Users 2 Posts: 6,125 ✭✭✭greasepalm


    Yes as on that pipe in hot pipe are 2 levers which i open and dial gauge rises due to water pressure filling it up more. Then where my gas boiler is another gauge which should match the same pressure.



  • Registered Users, Registered Users 2 Posts: 7 HarryG1995


    Okay thanks. Upon further investigating there are additional black circular handles on the pipes circled on the left and right. The pipe beside the pipe with the black valve on the right seems to be the warm water tap. Could not find a pressure gauge though

    WhatsApp Image 2025-04-17 at 09.39.34.jpeg


  • Registered Users, Registered Users 2 Posts: 6,125 ✭✭✭greasepalm


    I wonder if any of those taps are turned off ? Normally feed pipes are 1/2" and connected to a mains pipe possibly from a split up to the cold water tank.



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