R32 Refrigerant


R32 is a single component, zero ODP gas with a GWP of 675, significantly less than R410A's 2038. It is classified as A2L, or mildly flammable, under ISO 817 classifications. Ironically, R410A is a mixture of R32 and R125 - the R125 suppressing R32's flammability.


R32:  is it Flammable? YES,  is it Permanent? NO,

is it covered by HSE? NO




High Global Warming Potential GWP 2088  IF LEAKED BUT Non-FLAMMABLE. Permanant till 2038?, Covered by HSE


Current refrigerant for all systems (Splits, Multi Split and VRF ) since 2004. All in accordance with current F-Gas regulations and Health & Safety regulations (HSE). No bans (except on slae of split systems with a total charge of less than 3kg by 2025 with 4year extension if there are technical or safety issues ) or end of the line for any equipment containing more than 3kg charge or availability for service.



Low Global Warming Potential GWP 675 IF LEAKED BUT FLAMMABLE  


R32 refrigerants require special risk assessment as it is considered by HSE (Health & Safety Executive) as flammable.

It falls under:

DSEAR (Dangerous Substances and Explosive Atmospheres Regulation) UK Regulations. 

or Europe ATEX. BSEN 60079-10-1:2015

Important:  F-Gas Regulations CANNOT cover any competence on SAFETY as it is primarily an Environmental qualification ensuring environmentally safe handling, NOT PERSONAL SAFETY.

For A2L installer Personal Safety you need:  City & Guilds 6187-21 or equal and approved.


Installers carry the ultimate responsibility and must
inform end-users of the Flammability Risks.

See advisory documents by industry Associations  



For further information about the above Associations, click below

R32 can only be used in small applications (Max 12kW or less than 3kg charge per systems - outdoor, indoor and pipe works), (see F-Gas equipment sale ban by 2025 - NOT use)  See F-gas Bans and LG Recommendations

It is the responsibility of the installer to ensure equipment have clear labeling and warning and are transparent to end-users, and emergency services. Building owners must ensure that their insurance providers are aware of the risks associated with flammable refrigerants.

Q : Can an R32 system explode?  Watch this video 



- R32 is an HFC refrigerant Class A2L  (A2L not Used in Large (greater than 3 kg system charge) Splits, Multi splits, VRF or Chiller systems ). It is not a long-term refrigerant, cannot be dropped in, requires Specific Risk Assesment unders DSEAR, require extra training (installer safety) to handle flammables e.g. City & Guilds 6187-21 and require specific guidelines (see LG installation recommendations).

R410A or R134a or R407C  are HFC refrigerants (common Air Conditioning refrigerants which are A1classified (non Flammable), used in Splits, Multi, Commercial, VRF, Chillers, Roof Tops ) - (See F-Gas 2014 Regulations Specifically point 3 (new HFC ban)

the final solution? :

There two regulations that affect the reduction of current HFC refrigerants with high GWP.

The  European F-Gas and the Kigali Amendments to Montreal Protocole.

None of them is legally binding and there is no phase-out, and both rely on the future innovation of new Lo GWP refrigerants and equipment manufacturers ensuring no waste and better control on leakage (40 % of refrigerants used in AC/ Refrigeration is used in servicing). see links to both. 

An important website to find out more we highly recommend: http://www.gluckmanconsulting.com  

Space Air Web Site will have more guidance and advice to ensure the correct & Safe use of LG AC equipment utilising R32 Refrigerants. Including FACTS & FIGURES



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