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Air-to-air heat pumps - best models and installers

 
Air Source Heat Pumps (ASHPs)
Last Post by ASHP-BOBBA 4 months ago
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 djh
(@djh)
Active Member Member
Joined: 3 years ago
Posts: 18
Topic starter 14/04/2026 9:58 pm   [#2949]

For those of us who have already decided that we want an air-air unit rather than the air-water units that are much more common in this country, I'd like to see somewhere to discuss the choices available. What are the best models, and particularly which are the best installers for this type of heat pump in each area?


This topic was modified 4 months ago 2 times by Mars

   
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air-air installer a2a
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 6 years ago
Posts: 4809
14/04/2026 10:57 pm  

Great topic to raise, @djh… air-to-air systems are definitely under-discussed relative to their air-to-water cousins, so hopefully this thread can become a useful resource.

The main players worth looking at in the UK market are: Mitsubishi Electric, Daikin, LG, Samsung and Panasonic.

On the installer side, this is genuinely the trickier question, as A2A installation is regulated differently to A2W because installers need F-Gas certification. 

I’ll see if I can ID some reputable installers.


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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 6 years ago
Posts: 4809
14/04/2026 11:03 pm  

@ashp-bobba, do I remember correctly that you install A2As?


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster


   
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 ASHP-BOBBA
(@ashp-bobba)
Prominent Member Member Professional+
Joined: 2 years ago
Posts: 493
15/04/2026 7:07 am  

Posted by: @editor
↑

@ashp-bobba, do I remember correctly that you install A2As?

Yes, thats correct, AAC Group actually stands for Ashford Air Conditioning Group Ltd. The company has been doing AC for over 20 years and it is over 70% of what we do. I personally have been doing AC for 34 year all the way from when AC units were more like refrigeration units with good old mechanical expansion valves.

I have worked on systems that ranging from 1.5kW typical split types systems to 5000kW in chilled water tech, although they are air to water they are still designed like AC systems for sky scrapers and alike. 

 

 


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.


   
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 ASHP-BOBBA
(@ashp-bobba)
Prominent Member Member Professional+
Joined: 2 years ago
Posts: 493
15/04/2026 7:09 am  

Are you creating a whole new category for A2A?


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.


   
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