Refrigerant Storage Requirements UK: HSE and F-Gas Compliance Guide
Proper refrigerant gas cylinder storage is both a legal requirement and a safety essential for UK HVAC and refrigeration businesses. Failing to store refrigerant cylinders correctly can result in HSE enforcement action, fire safety violations, and F-Gas compliance issues. This guide covers the key UK requirements for refrigerant cylinder storage.
General Storage Requirements for Refrigerant Cylinders
- Keep upright: All refillable refrigerant cylinders should be stored upright unless specifically designed for horizontal use
- Secure from falling: Cylinders must be secured with chains, racks or brackets to prevent toppling
- Valve protection: Valve caps or guards must be fitted when cylinders are not in use
- Segregated by gas type: Keep different refrigerant types clearly separated and labelled
- Temperature: Store in a cool, dry area below 50°C — do not expose to direct sunlight for extended periods
- Ventilation: Storage area must be well-ventilated, especially for A2L and A3 gases
A2L Refrigerant Storage (R32, R1234yf)
A2L refrigerants including R32 and R1234yf are mildly flammable. Storage requirements:
- Store away from ignition sources (open flame, electrical sparks, hot surfaces above 455°C)
- Adequate ventilation to prevent accumulation above lower flammable limit (LFL)
- No smoking signs in storage areas
- Refrigerant-specific hazard data sheets available on site
- Comply with BS EN 378 and any local fire authority requirements
A1 Refrigerant Storage (R410A, R404A, R134a, R407C)
A1 refrigerants are non-flammable. However, all pressurised gas cylinders carry explosion risk if overheated. Cylinder storage must:
- Be away from heat sources (boilers, direct sunlight, steam pipes)
- Have adequate ventilation (all refrigerant gases displace oxygen)
- Be kept away from incompatible materials (strong oxidisers, flammable solvents)
Cylinder Quantities and Premises Requirements
For larger refrigerant stores, building regulations, fire authority requirements and DSEAR (Dangerous Substances and Explosive Atmospheres Regulations 2002) may apply, particularly for A2L and A3 gases. If storing more than small quantities of A2L refrigerant, consult your local fire authority and review your DSEAR risk assessment.
All cylinders from Refrigerant Gas Supplies Ltd are supplied with safety data sheets. R32, R410A, R404A — F-Gas compliant, next-day UK delivery.
Frequently Asked Questions
Can refrigerant cylinders be stored in a van overnight?
Refrigerant cylinders in a van must be properly secured against movement. For A2L refrigerants (R32, R1234yf), the van should not be parked in enclosed areas overnight without ventilation (e.g. underground car parks). Carry Safety Data Sheets in the vehicle. ADR transport regulations apply for larger quantities.
Do I need a special room to store R32 cylinders?
For small quantities (1–2 cylinders in a well-ventilated area), no special room is required beyond basic requirements. For larger stores of A2L refrigerant, review DSEAR requirements and consult your fire authority. Natural ventilation at high and low levels is recommended.
What labelling is required on refrigerant cylinder storage areas?
Compressed gas warning signs, no smoking/no open flames signs for A2L areas, refrigerant type identification, and emergency contact information. Safety Data Sheets should be accessible in the storage area.