Air Source Heat Pumps (ASHP)

1218 topics in this forum

1. ASHP outdoor unit heating pump Q 1 2

   By BotusBuild, March 6   

   • vaillant
   • arotherm plus
   • (and 1 more)

     Tagged with:

     • vaillant
     • arotherm plus
     • vwl 75/6
   • 35 replies
   • 906 views
   • 
   • BotusBuild
   • Tuesday at 19:11

2. Vaillant ashp (my battle with). 1 2 3 4 22

   By zoothorn, August 27, 2023
   • 539 replies
   • 37.6k views
   • 
   • Nickfromwales
   • March 4

3. Interesting couple of days with the new heat pump. 1 2

   By MikeSharp01, February 3
   • 49 replies
   • 2.3k views
   • 
   • Wil
   • February 25

4. ASHP BUS Grant - when does it pay out?

   By Great_scot_selfbuild, February 16
   • 8 replies
   • 401 views
   • 
   • Post and beam
   • February 20

5. Panasonic Aquarea L series cooling

   By Benpointer, February 17
   • 4 replies
   • 250 views
   • 
   • Benpointer
   • February 18

6. Why did you choose an air source heat pump? 1 2

   By SimonD, February 15
   • 32 replies
   • 971 views
   • 
   • BotusBuild
   • February 17

7. Whole house ASHP system design

   By flanagaj, February 15
   • 6 replies
   • 322 views
   • 
   • flanagaj
   • February 16

8. ASHP: monobloc, split or combi? 1 2

   By AndySat, January 20, 2025
   • 44 replies
   • 4.9k views
   • 
   • Wil
   • February 9

9. Any reasons not to go with a Nibe ASHP?

   By Great_scot_selfbuild, February 8
   • 9 replies
   • 401 views
   • 
   • JohnMo
   • February 9

10. 2x air source heat pumps - Scotland 1 2

    By BintyAndTheBeast, December 29, 2025   

    • heat pump
    • scotland
    • (and 2 more)

      Tagged with:

      • heat pump
      • scotland
      • planning application
      • noise
    • 25 replies
    • 375 views
    • 
    • JohnMo
    • February 8

11. ASHP - choices, choices. Feel like I’m back at square one 1 2 3

    By Great_scot_selfbuild, February 3
    • 60 replies
    • 2k views
    • 
    • Nickfromwales
    • February 8

12. Haier R290 Monobloc 1 2 3

    By JohnMo, January 16   

    • ashp
    • 69 replies
    • 3k views
    • 
    • JohnMo
    • February 6

13. Whole‑House Renovation: Need Real‑World Advice on ASHP + Fan Coils + MVHR Integration 1 2

    By NetTechie, January 12   

    • mvhr
    • ashp and dhw
    • (and 2 more)

      Tagged with:

      • mvhr
      • ashp and dhw
      • lg
      • fan coil
    • 43 replies
    • 2k views
    • 
    • SimonD
    • February 3

14. Ecodan SIKA Flow sensor failure

    By joth, August 16, 2024
    • 13 replies
    • 4.6k views
    • 
    • joth
    • February 2

15. Observations on need for heating upstairs 1 2

    By Post and beam, January 27
    • 38 replies
    • 1.1k views
    • 
    • Nickfromwales
    • January 28

16. I’m spending a fortune running a heat pump in my build! Please HELP 😫 1 2 3 4 5

    By damspt, November 21, 2025
    • 122 replies
    • 7.3k views
    • 
    • Nickfromwales
    • January 28

17. ASHP low pressure help pls 1 2 3 4 7

    By canalsiderenovation, January 8
    • 154 replies
    • 5.7k views
    • 
    • Nickfromwales
    • January 24

18. Pipe insulation for ashp

    By JeffGiraf, January 5
    • 3 replies
    • 510 views
    • 
    • Nick Laslett
    • January 20

19. r290 mini split/A2A 1 2

    By HughF, June 21, 2023
    • 32 replies
    • 7.3k views
    • 
    • Amarshe
    • January 18

20. Buffer tank and secondary pumps. Do I need them? 1 2 3

    By jimseng, December 24, 2025
    • 50 replies
    • 3.3k views
    • 
    • jimseng
    • January 10

21. Air to Air Heat Pump Operation - Constant or Timed?

    By mike2016, January 9
    • 1 reply
    • 399 views
    • 
    • JohnMo
    • January 9

22. Criticisms please 1 2

    By waxingsatirical, October 1, 2024
    • 41 replies
    • 4.9k views
    • 
    • MPH243
    • January 8

23. Weather test happening in the UK on ASHP design and installations. 1 2

    By Marvin, January 6   

    • ashp
    • design
    • 26 replies
    • 1.1k views
    • 
    • Michael_S
    • January 7

24. UFH = 46 deg? (Which comes first, ASHP or UFH / chicken & egg?)

    By Great_scot_selfbuild, January 6
    • 8 replies
    • 610 views
    • 
    • JohnMo
    • January 7

25. Should I or Shouldn't I ASHP? 1 2

    By Johnnyt, January 1
    • 48 replies
    • 2k views
    • 
    • DamonHD
    • January 6