Air Source Heat Pumps (ASHP)

1233 topics in this forum

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

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

2. 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
   • 875 views
   • 
   • JohnMo
   • February 8

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

   By Great_scot_selfbuild, February 3
   • 60 replies
   • 3.3k views
   • 
   • Nickfromwales
   • February 8

4. Haier R290 Monobloc 1 2 3

   By JohnMo, January 16   

   • ashp
   • 69 replies
   • 4.2k views
   • 
   • JohnMo
   • February 6

5. 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
   • 2.6k views
   • 
   • SimonD
   • February 3

6. Next steps on setting up the heat pump - Running Weather Compensation

   By MikeSharp01, January 28
   • 21 replies
   • 969 views
   • 
   • SteamyTea
   • January 29

7. Observations on need for heating upstairs 1 2

   By Post and beam, January 27
   • 38 replies
   • 1.6k views
   • 
   • Nickfromwales
   • January 28

8. Heat pump plumbing thumps on change over from heating water to heating the UFH.

   By MikeSharp01, January 27
   • 15 replies
   • 889 views
   • 
   • Nickfromwales
   • January 28

9. 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
   • 9.3k views
   • 
   • Nickfromwales
   • January 28

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

    By canalsiderenovation, January 8
    • 154 replies
    • 7.5k views
    • 
    • Nickfromwales
    • January 24

11. Pipe insulation for ashp

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

12. r290 mini split/A2A 1 2

    By HughF, June 21, 2023
    • 32 replies
    • 7.7k views
    • 
    • Amarshe
    • January 18

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

    By jimseng, December 24, 2025
    • 50 replies
    • 4.2k views
    • 
    • jimseng
    • January 10

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

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

15. Criticisms please 1 2

    By waxingsatirical, October 1, 2024
    • 41 replies
    • 5.5k views
    • 
    • MPH243
    • January 8

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

    By Marvin, January 6   

    • ashp
    • design
    • 26 replies
    • 1.5k views
    • 
    • Michael_S
    • January 7

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

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

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

    By Johnnyt, January 1
    • 48 replies
    • 2.4k views
    • 
    • DamonHD
    • January 6

19. Samsung gen 5 wired controller help

    By Bigspanners, January 6
    • 0 replies
    • 460 views
    • 
    • Bigspanners
    • January 6

20. Grant/ Aerona ASHP expensive... 1 2

    By JeffGiraf, January 4
    • 30 replies
    • 1.3k views
    • 
    • Michael_S
    • January 6

21. Ecodan system HW override

    By athlonoc, January 3
    • 8 replies
    • 515 views
    • 
    • athlonoc
    • January 3

22. Best electric tariff now that OVO are ending the Heat Pump Plus in February 2026

    By martian, December 29, 2025
    • 5 replies
    • 852 views
    • 
    • ectoplasmosis
    • January 2

23. Defrost calculation and impact on output

    By JohnMo, December 30, 2025   

    • ashp
    • defrost
    • 2 replies
    • 424 views
    • 
    • JohnMo
    • December 30, 2025

24. ASHP temperature settings query.

    By Marvin, December 27, 2025   

    • ashp operation
    • 4 replies
    • 550 views
    • 
    • Marvin
    • December 29, 2025

25. Help please. clear alarm?

    By Post and beam, December 21, 2025
    • 7 replies
    • 631 views
    • 
    • Nickfromwales
    • December 21, 2025