propane as natural refrigerant

Now more than ever, the use of refrigeration systems with natural refrigerants is a matter of environmental responsibility. Synthetic refrigerants (HFCs) contribute significantly to the greenhouse effect because they have a high global warming potential (GWP). When they enter the atmosphere, they generate millions of tonnes of additional CO₂ emissions every year.

To avoid this pollution, natural alternatives such as propane, ammonia, propene and butane are available. Modern refrigeration technology is now able to use these substances highly efficiently and safely.

The new EU F-Gas Regulation (EU) 2024/573 has been in force since 11 March 2024 and replaces the old Regulation (EU) No. 517/2014. It tightens the rules for fluorinated greenhouse gases (F-gases) and provides for a complete phase-out by 2050.

• High energy efficiency thanks to excellent thermodynamic properties
• Safe operation with modern system technology, even at high outside temperatures
• Cost advantages: lower maintenance costs, no leak tests required
• Technical advantages: low pressure levels (< 28 bar), reliable operation in summer and winter
• Sustainability: propane is a natural refrigerant with very low global warming potential

In accordance with the new EU F-Gas Regulation (EU) 2024/573, the phase-out of synthetic refrigerants has been finally decided. Substances with ozone-depleting potential have been banned for years. Now the focus is on fluorinated greenhouse gases (HFCs), which have an extremely high global warming potential (GWP) and thus contribute significantly to global warming.

The regulation sets out a clear roadmap:

• Phase-down → Phase-out: The quantities of HFCs available on the market will be gradually reduced until a complete phase-out is achieved in 2050.
• Bans from 2025: Certain refrigeration and air conditioning systems with high GWP may no longer be placed on the market or put into service.
• Stricter testing: Operators of systems using synthetic refrigerants must continue to comply with leak testing, certification and labelling requirements – which increases maintenance costs.

Natural refrigerants such as propane, ammonia, CO₂ or butane are not affected by the new regulations. They are considered to be:

• Future-proof: no bans or quantity restrictions
• Cost-efficient: no additional testing requirements, lower maintenance costs
• Climate-friendly: very low GWP, no impact on the environment
• Technically mature: modern refrigeration technology enables safe and efficient use