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Boilers & Hot Water Tanks

583 topics in this forum

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

    By Tom,
    • 30 replies
    • 2.7k views

  2. Redring 5L SB5S SensaBoil - no water flow

    By geo3geo,
    • 2 replies
    • 756 views

  3. Unvented HW Cylinders with internal expansion

    By John Carroll,
    • 4 replies
    • 941 views

  4. Gas boiler with heat pump cylinder

    By j_s,
    • 3 replies
    • 1.2k views

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

    By ZenMad,
    • 9 replies
    • 1.5k views

  6. Old Glowworm combi boiler broken.

    By dnb,
    • 5 replies
    • 1.3k views

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

    By Adsibob,
    • 196 replies
    • 15.8k views

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

    By nikbower,
    • 4 replies
    • 843 views

  9. Managing solar diverter hot water

    By Linto,
    • 5 replies
    • 1.3k views

  10. combined heat pump/UVC for DHW and UFH

    By Tom,
    • 7 replies
    • 1.4k views
    • Tom
    • Tom

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

    By Meabh,
    • 19 replies
    • 4.8k views

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

    By marshian,
    • 28 replies
    • 3k views

  13. Cotherm GTLH 3161 cylinder Stat

    By John Carroll,
    • 0 replies
    • 487 views

  14. Max flow velocity in 15mm pipe?

    By sharpener,
    • 13 replies
    • 3.6k views

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

    By sharpener,
    • 8 replies
    • 1.3k views

  16. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll,   
    • 3 replies
    • 824 views

  17. Energy Efficient Water Heater 1 2

    By jack benson,
    • 35 replies
    • 3.4k views

  18. how important is perfect placement of weather compensation sensor for a Viessman gas boiler?

    By Adsibob,
    • 4 replies
    • 710 views

  19. Load compensation vs Weather compensation (Viessman Vitodens related but general question)

    By mrklawuk,
    • 5 replies
    • 3.8k views

  20. Do universal roof boiler flue kits exist - suitable for fitting to any brand of boiler?

    By Wuey,
    • 3 replies
    • 917 views

  21. PT100 cylinder probe wireless connection

    By JohnMo,
    • 9 replies
    • 1.4k views

  22. Rough cost oil boiler replacement

    By jfb,
    • 1 reply
    • 660 views

  23. What model is this oil pump - have a guess

    By cwr,
    • 9 replies
    • 1.2k views

  24. Combi and unvented cylinder

    By nikbower,
    • 15 replies
    • 2.6k views

  25. intermittent F75 on vaillant ecotec 831

    By dscoll,   
    • 13 replies
    • 2.1k views
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