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Boilers & Hot Water Tanks

556 topics in this forum

  1. Unvented HW Cylinders with internal expansion

    By John Carroll,
    • 4 replies
    • 659 views

  2. Gas boiler with heat pump cylinder

    By j_s,
    • 3 replies
    • 872 views

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

    By ZenMad,
    • 9 replies
    • 1k views

  4. Old Glowworm combi boiler broken.

    By dnb,
    • 5 replies
    • 996 views

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

    By Adsibob,
    • 196 replies
    • 12k views

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

    By nikbower,
    • 4 replies
    • 680 views

  7. Managing solar diverter hot water

    By Linto,
    • 5 replies
    • 904 views

  8. combined heat pump/UVC for DHW and UFH

    By Tom,
    • 7 replies
    • 1.2k views

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

    By Meabh,
    • 19 replies
    • 3.3k views

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

    By marshian,
    • 28 replies
    • 2.2k views

  11. Cotherm GTLH 3161 cylinder Stat

    By John Carroll,
    • 0 replies
    • 387 views

  12. Max flow velocity in 15mm pipe?

    By sharpener,
    • 13 replies
    • 2.4k views

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

    By sharpener,
    • 8 replies
    • 927 views

  14. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll,   
    • 3 replies
    • 608 views

  15. Energy Efficient Water Heater 1 2

    By jack benson,
    • 35 replies
    • 2.3k views

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

    By Adsibob,
    • 4 replies
    • 509 views

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

    By mrklawuk,
    • 5 replies
    • 3.2k views

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

    By Wuey,
    • 3 replies
    • 654 views

  19. PT100 cylinder probe wireless connection

    By JohnMo,
    • 9 replies
    • 1.2k views

  20. Rough cost oil boiler replacement

    By jfb,
    • 1 reply
    • 514 views

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

    By cwr,
    • 9 replies
    • 981 views

  22. Combi and unvented cylinder

    By nikbower,
    • 15 replies
    • 1.9k views

  23. intermittent F75 on vaillant ecotec 831

    By dscoll,   
    • 13 replies
    • 1.4k views

  24. Reducing effective volume of inaccessible DHW pipework

    By JamesPa,
    • 1 reply
    • 425 views

  25. ASHP, buffer & storage tanks

    By MattT2,
    • 7 replies
    • 1.3k views
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