Boilers & Hot Water Tanks

595 topics in this forum

1. 'Packaged' UVC, larger than 200l?

   By Post and beam, August 9, 2023
   • 10 replies
   • 1.5k views
   • 
   • SteamyTea
   • August 18, 2023

2. When do G3 regulations apply? Buffer tanks?

   By OldSpot, March 7, 2021
   • 16 replies
   • 3.1k views
   • 
   • JamesPa
   • August 18, 2023

3. Plate loading or coil UVC for heat pump

   By JohnMo, August 10, 2023   

   • phe ( plate heat exchanger )
   • ashp
   • 11 replies
   • 2.2k views
   • 
   • Iceverge
   • August 17, 2023

4. UVC pressure reducing valve

   By JohnMo, August 11, 2023   

   • uvc ( unvented hot water cylinder )
   • prv
   • 2 replies
   • 1.2k views
   • 
   • Nickfromwales
   • August 11, 2023

5. Horizontal cylinder in a 'cold' loft. Bad idea?

   By Post and beam, August 10, 2023
   • 20 replies
   • 3.4k views
   • 
   • SteamyTea
   • August 11, 2023

6. Gas heat recovery

   By anonymous, August 9, 2023
   • 5 replies
   • 1.1k views
   • 
   • SteamyTea
   • August 9, 2023

7. Plumber put together a thing … and I have concerns 1 2

   By mjsx, June 22, 2023
   • 27 replies
   • 4.1k views
   • 
   • Nickfromwales
   • August 8, 2023

8. Advise Fitting new Combi Boiler

   By Richini, August 3, 2023
   • 7 replies
   • 1.6k views
   • 
   • TonyT
   • August 4, 2023

9. Accumulator (mains booster) vessels - Same nominal volume, huge size difference.

   By puntloos, July 21, 2023
   • 2 replies
   • 967 views
   • 
   • puntloos
   • July 21, 2023

10. Horizontal cylinder in the loft, good idea?

    By Post and beam, July 12, 2023
    • 5 replies
    • 1.6k views
    • 
    • Iceverge
    • July 18, 2023

11. Hot water for outbuilding next to house - under ground from UVC or electric?

    By Navron, May 31, 2023
    • 3 replies
    • 3.4k views
    • 
    • Navron
    • July 15, 2023

12. Can I turn the water off from my tank cupboard

    By Roz, July 11, 2023
    • 3 replies
    • 1.4k views
    • 
    • Roz
    • July 12, 2023

13. Small water heater discharge point termination (post tundish)

    By Stones, July 1, 2023
    • 6 replies
    • 1.9k views
    • 
    • Stones
    • July 2, 2023

14. Vitodens 100-W and EM-P1 module to control hot water recirculation pump

    By mjsx, June 22, 2023
    • 0 replies
    • 886 views
    • 
    • mjsx
    • June 22, 2023

15. Is this a normal heat loss graph from an UVC?

    By Thorfun, June 13, 2023
    • 10 replies
    • 1.9k views
    • 
    • SteamyTea
    • June 13, 2023

16. Sunamp sizing

    By gregh, June 10, 2023
    • 6 replies
    • 1.4k views
    • 
    • gregh
    • June 10, 2023

17. Solar PV but no immersion heater - dual tank options

    By Chris X, May 22, 2023
    • 7 replies
    • 1.4k views
    • 
    • Chris X
    • May 23, 2023

18. Direct UVC Question - Stats?!

    By catrionag, May 17, 2023
    • 0 replies
    • 891 views
    • 
    • catrionag
    • May 17, 2023

19. Advice needed regarding weather comp for Vaillant 637

    By V1ks, May 10, 2023
    • 5 replies
    • 2.3k views
    • 
    • V1ks
    • May 16, 2023

20. Changing to combi boiler

    By Pollyanna, May 14, 2023
    • 9 replies
    • 1.5k views
    • 
    • TonyT
    • May 14, 2023

21. Installing an unvented cylinder on a building control notice?

    By flanagaj, May 4, 2023
    • 1 reply
    • 977 views
    • 
    • JohnMo
    • May 4, 2023

22. Viessmann Vitodens 200-w - initial impressions 1 2 3

    By larry, February 21, 2021
    • 53 replies
    • 23.5k views
    • 
    • larry
    • May 4, 2023

23. Any Vaillant boiler experts here?

    By PiMike, April 27, 2023
    • 9 replies
    • 2.1k views
    • 
    • PiMike
    • April 30, 2023

24. What's the consensus on legionella and dhw storage temps

    By SimonD, October 23, 2022
    • 24 replies
    • 5.4k views
    • 
    • markocosic
    • April 27, 2023

25. Most efficient timetable for heating a unvented HWC

    By Adsibob, April 17, 2023
    • 24 replies
    • 8.7k views
    • 
    • SteamyTea
    • April 19, 2023