Boilers & Hot Water Tanks

517 topics in this forum

1. Oil Boiler Locking Out 1 2 3 4 5

   By Onoff, November 22, 2020
   • 103 replies
   • 16.2k views
   • 
   • Onoff
   • March 30

2. Help electric boiler for UFH

   By Alexphd1, March 21
   • 13 replies
   • 898 views
   • 
   • Nickfromwales
   • March 22

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

   By Spinny, March 20
   • 22 replies
   • 1.2k views
   • 
   • JohnMo
   • March 22

4. Crusty Combi Boiler Dripping

   By Krikey, March 16
   • 0 replies
   • 407 views
   • 
   • Krikey
   • March 16

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

   By Tom, March 13
   • 30 replies
   • 1.3k views
   • 
   • Dave Jones
   • March 15

6. UVC Retrofit: Tundish D2 Discharge Pipe in a Passive House

   By TerryE, March 4
   • 14 replies
   • 1.3k views
   • 
   • TerryE
   • March 15

7. Redring 5L SB5S SensaBoil - no water flow

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

8. Unvented HW Cylinders with internal expansion

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

9. Gas boiler with heat pump cylinder

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

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

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

11. Old Glowworm combi boiler broken.

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

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

    By Adsibob, January 26
    • 196 replies
    • 9k views
    • 
    • Lofty718
    • March 2

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

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

14. Managing solar diverter hot water

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

15. combined heat pump/UVC for DHW and UFH

    By Tom, October 26, 2022
    • 7 replies
    • 1k views
    • 
    • Tom
    • February 23

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

    By Meabh, February 21
    • 19 replies
    • 1.6k views
    • 
    • JohnMo
    • February 23

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

    By marshian, January 25
    • 28 replies
    • 1.5k views
    • 
    • John Carroll
    • February 20

18. Cotherm GTLH 3161 cylinder Stat

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

19. Max flow velocity in 15mm pipe?

    By sharpener, February 15
    • 13 replies
    • 1.1k views
    • 
    • JohnMo
    • February 19

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

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

21. Combi dilemma! 1 2 3 4

    By DamonHD, September 9, 2022
    • 75 replies
    • 5.7k views
    • 
    • DamonHD
    • February 12

22. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll, February 8   

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

23. Heatgeek website

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

24. Energy Efficient Water Heater 1 2

    By jack benson, February 1
    • 35 replies
    • 1.6k views
    • 
    • jack benson
    • February 2

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

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