Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Are split ASHPs wit...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Are split ASHPs with R290 refrigerant coming soon?

 
Air Source Heat Pumps (ASHPs)
Last Post by iotum 5 months ago
1 Posts
1 Users
0 Reactions
540 Views
RSS
 iotum
(@iotum)
Active Member Member
Joined: 5 months ago
Posts: 7
Topic starter 15/01/2026 3:26 pm   [#2749]

Question.  Are there any (or likely to be in the near term) any split ASHPs that use R290?

Background based on my current understanding, reading online, talking to installers and asking an AI.  Please correct if you think I or the AI got any of it wrong.

  • R290 is significantly more efficient than R32 and can work at higher flow temps which make it more suitable for retrofit into older properties.
  • Most (all?) current split ASHPs use R32 because R290 (propane) is flammable.
  • Split ASHPs have smaller outdoor units and running the refrigerant pipework can be easier in "awkward" properties.
  • GWP 2027 refers to EU F-Gas Regulation changes from January 1, 2027, banning certain refrigerants with high Global Warming Potential (GWP) in new air conditioning (AC) and heat pump (HP) equipment, including self-contained systems ≤12kW. 
  • So R32 will be banned from most new ASHPs being sold from Jan 2027.
  • Manufacturers are currently working hard on designing split ASHPs that can use R290 and that won't blow up your house. 

4.7 kW Solar array - Solaredge 3.5kW inverter
No battery yet. No heat pump yet.
20 year old gas boiler with a bit of a Wallace and Gromit invention to alter the flow temperature depending on whether Hot Water or heatingh is being called.


   
Quote
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO