Technical · 6 min read
R32 Refrigerant and F-Gas Regulations, Explained
Refrigerant choice and F-Gas compliance are the parts of an installation you cannot see — and the parts that matter most legally.
Published 2026-07-21 · Updated 2026-07-21 · WDI Group (Surrey) Ltd
What R32 is
R32 is the refrigerant used in most current domestic split systems. It replaced R410A because it has roughly a third of the global warming potential and is a single-component refrigerant, which makes charging and servicing simpler and more accurate.
It is mildly flammable, classified A2L, which is why charge quantities are matched to room volume and why installation must follow the manufacturer's design rules.
What F-Gas requires
Anyone installing, servicing or decommissioning equipment containing fluorinated refrigerants must hold the relevant F-Gas qualification, and the company must hold the appropriate registration. Refrigerant must be recovered, not vented, and records kept.
This is a legal requirement, not a badge. Asking to see it is entirely reasonable and any competent installer will show you.
- Engineer qualification for handling refrigerant
- Company registration for the work carried out
- Recovery of refrigerant at decommissioning
- Records of charge quantity and commissioning
Is it safe at home?
Yes, when installed correctly. Manufacturers publish minimum room areas for a given refrigerant charge, and we check them as part of design. A properly brazed, pressure-tested and evacuated system should never lose charge in normal use.
The risks come from bad installation — undersized rooms, poor joints, no pressure test — not from the refrigerant itself.
What comes next
Regulation continues to push global warming potential down, and lower-GWP refrigerants such as R290 are appearing in some products. R32 equipment installed today remains fully supported and serviceable for its working life.
We will always tell you which refrigerant a proposed system uses and how much of it the installation holds.
Frequently asked questions
- Does refrigerant need topping up regularly?
- No. A sealed system should not lose refrigerant. Repeated top-ups indicate a leak that must be found and fixed.
- Can I get R410A equipment serviced?
- Yes, existing R410A systems can still be maintained, though refrigerant availability and cost are gradually increasing.