Boilers & Hot Water Tanks

534 topics in this forum

1. Redring 5L SB5S SensaBoil - no water flow

   By geo3geo, March 10
   • 2 replies
   • 517 views
   • 
   • geo3geo
   • March 10

2. Unvented HW Cylinders with internal expansion

   By John Carroll, March 9
   • 4 replies
   • 575 views
   • 
   • John Carroll
   • March 10

3. Gas boiler with heat pump cylinder

   By j_s, March 9
   • 3 replies
   • 691 views
   • 
   • JohnMo
   • March 9

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

   By ZenMad, March 9
   • 9 replies
   • 840 views
   • 
   • TonyT
   • March 9

5. Old Glowworm combi boiler broken.

   By dnb, February 25
   • 5 replies
   • 905 views
   • 
   • dnb
   • March 6

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

   By Adsibob, January 26
   • 196 replies
   • 10.2k views
   • 
   • Lofty718
   • March 2

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

   By nikbower, February 28
   • 4 replies
   • 591 views
   • 
   • nikbower
   • February 29

8. Managing solar diverter hot water

   By Linto, February 23
   • 5 replies
   • 717 views
   • 
   • Linto
   • February 23

9. combined heat pump/UVC for DHW and UFH

   By Tom, October 26, 2022
   • 7 replies
   • 1.1k views
   • 
   • Tom
   • February 23

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

    By Meabh, February 21
    • 19 replies
    • 2.2k views
    • 
    • JohnMo
    • February 23

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

    By marshian, January 25
    • 28 replies
    • 1.7k views
    • 
    • John Carroll
    • February 20

12. Cotherm GTLH 3161 cylinder Stat

    By John Carroll, February 20
    • 0 replies
    • 336 views
    • 
    • John Carroll
    • February 20

13. Max flow velocity in 15mm pipe?

    By sharpener, February 15
    • 13 replies
    • 1.6k views
    • 
    • JohnMo
    • February 19

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

    By sharpener, February 12
    • 8 replies
    • 725 views
    • 
    • sharpener
    • February 14

15. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll, February 8   

    • vaillant
    • boiler fault
    • 3 replies
    • 514 views
    • 
    • dscoll
    • February 10

16. Heatgeek website

    By Adsibob, February 3
    • 6 replies
    • 774 views
    • 
    • TonyT
    • February 4

17. Energy Efficient Water Heater 1 2

    By jack benson, February 1
    • 35 replies
    • 1.9k views
    • 
    • jack benson
    • February 2

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

    By Adsibob, February 1
    • 4 replies
    • 423 views
    • 
    • Lofty718
    • February 2

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

    By mrklawuk, October 25, 2022
    • 5 replies
    • 2.8k views
    • 
    • Adsibob
    • February 1

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

    By Wuey, January 29
    • 3 replies
    • 520 views
    • 
    • SimonD
    • January 30

21. PT100 cylinder probe wireless connection

    By JohnMo, November 17, 2023
    • 9 replies
    • 1k views
    • 
    • ProDave
    • January 28

22. Rough cost oil boiler replacement

    By jfb, January 27
    • 1 reply
    • 453 views
    • 
    • Temp
    • January 27

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

    By cwr, January 25
    • 9 replies
    • 887 views
    • 
    • dpmiller
    • January 27

24. Combi and unvented cylinder

    By nikbower, January 19
    • 15 replies
    • 1.5k views
    • 
    • nikbower
    • January 25

25. intermittent F75 on vaillant ecotec 831

    By dscoll, January 10   

    • vaillant
    • boiler fault
    • 13 replies
    • 1k views
    • 
    • marshian
    • January 24