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Boilers & Hot Water Tanks

590 topics in this forum

  1. heat geek doesnt work in NI, could I send plans, pics etc to somewhere to get it designed so my plumber could fit it right?

    By CalvinHobbes,
    • 3 replies
    • 1.3k views

  2. Boiler control using the Drayton Wiser and opentherm. 1 2

    By chris_x,
    • 26 replies
    • 9.4k views

  3. boiler behaviour,please let me know your thoughts. 1 2 3 4

    By Post and beam,
    • 83 replies
    • 6.9k views

  4. SunAmp PVs going spare / scrap

    By TerryE,
    • 15 replies
    • 2.2k views

  5. Oil Boiler Locking Out 1 2 3 4 5

    By Onoff,
    • 103 replies
    • 25k views

  6. Help electric boiler for UFH

    By Alexphd1,
    • 13 replies
    • 1.4k views

  7. How to certify unvented cylinder if plumber lacks G3 ?

    By Spinny,
    • 22 replies
    • 4.9k views

  8. Crusty Combi Boiler Dripping

    By Krikey,
    • 0 replies
    • 627 views

  9. best UVC/diverter set-up to maximise PV use 1 2

    By Tom,
    • 30 replies
    • 3k views

  10. Redring 5L SB5S SensaBoil - no water flow

    By geo3geo,
    • 2 replies
    • 797 views

  11. Unvented HW Cylinders with internal expansion

    By John Carroll,
    • 4 replies
    • 1.1k views

  12. Gas boiler with heat pump cylinder

    By j_s,
    • 3 replies
    • 1.4k views

  13. What boiler should I use for my house: Sytem Boiler or Combi Boiler?

    By ZenMad,
    • 9 replies
    • 1.7k views

  14. Old Glowworm combi boiler broken.

    By dnb,
    • 5 replies
    • 1.3k views

  15. How to measure the remaining HW in an unvented cylinder 1 2 3 4 8

    By Adsibob,
    • 196 replies
    • 17.3k views

  16. Must I site my boiler in the same room as the unvented HWC?

    By nikbower,
    • 4 replies
    • 912 views

  17. Managing solar diverter hot water

    By Linto,
    • 5 replies
    • 1.4k views

  18. combined heat pump/UVC for DHW and UFH

    By Tom,
    • 7 replies
    • 1.6k views
    • Tom
    • Tom

  19. What size Hot Water Cylinder for family of 5?

    By Meabh,
    • 19 replies
    • 5.8k views

  20. Heat loss over time (Vented Cylinder) 1 2

    By marshian,
    • 28 replies
    • 3.4k views

  21. Cotherm GTLH 3161 cylinder Stat

    By John Carroll,
    • 0 replies
    • 520 views

  22. Max flow velocity in 15mm pipe?

    By sharpener,
    • 13 replies
    • 4.4k views

  23. Oil boiler only runs for 15 mins at a time

    By sharpener,
    • 8 replies
    • 1.4k views

  24. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll,   
    • 3 replies
    • 953 views

  25. Energy Efficient Water Heater 1 2

    By jack benson,
    • 35 replies
    • 3.9k views
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