The EU F-Gas Regulation introduces new requirements for refrigerants. Learn why Dantherm uses R454C in dehumidifiers and the advantages this low-GWP refrigerant offers for the future of dehumidification and servicing.

EU F-Gas Regulation: Why R454C is becoming increasingly important for dehumidifiers

The updated EU F-Gas Regulation (EU) 2024/573 is fundamentally changing the use and availability of fluorinated refrigerants (F-gases). Refrigerants with a high Global Warming Potential (GWP), such as R407C, are particularly affected.

The Dantherm Group is responding to this development early and has converted key ranges of dehumidifiers to the refrigerant R454C. With a GWP of 148, R454C is significantly lower than the GWP of R407C, thus offering a future-oriented solution for professional dehumidification.

What does the new F-Gas Regulation mean?

The EU F-Gas Regulation aims to gradually reduce the use of fluorinated greenhouse gases. To this end, the available quantities of HFCs are being limited and stricter requirements are being introduced for certain refrigeration and air conditioning equipment.

For operators, planners, and service technicians, this means that when selecting new dehumidification units, the refrigerant used and its GWP value are becoming increasingly relevant alongside performance and energy efficiency.

Period	Development
Since 2025	Stricter requirements and bans on certain new equipment using high-GWP refrigerants
2027–2030	Further reduction in available HFC quantities and gradual tightening of requirements
2032–2050	Further reduction and phase-out of refrigerants with high global warming potential
Long-term	Increasing importance of refrigerants with significantly lower GWP and natural refrigerants

For companies and operators, it is therefore becoming increasingly important to consider the long-term availability, maintainability, and regulatory development of the refrigerant used when investing in new dehumidifiers.

R454C: Refrigerant with significantly reduced GWP

R454C is one of the newer generation of refrigerants and has a significantly lower global warming potential than R407C. In the corresponding Dantherm dehumidifiers, the GWP of R454C is 148, whereas R407C has a GWP value of 1,774.

This represents a significant reduction in the global warming potential of the refrigerant used. At the same time, R454C is suitable for various professional dehumidification applications.

The most important advantages of R454C

• GWP 148 – significantly lower than R407C with a GWP of 1,774
• No ozone depletion potential (ODP)
• Suitable for various professional dehumidification applications
• A2L classification with corresponding requirements for work on the refrigerant circuit
• Supports long-term equipment and service planning

Which Dantherm dehumidifiers have already been converted to R454C?

The Dantherm Group has already converted key product families to R454C. These include, among others, the following series:

Model series	Application area
CDP 40–50–70	Dehumidifiers for swimming pools
CDP 40T–50T–70T	Wall-mounted dehumidifiers
CDF 40–50–70	Commercial and industrial dehumidifiers

R454C is also being used in other Dantherm Group products. In doing so, the company is responding early to changing regulatory requirements and the increasing importance of low-GWP refrigerants.

What does the F-Gas Regulation mean for operators and companies?

The development of refrigerant regulations should be taken into account when planning new systems and equipment. In addition to the actual dehumidification performance, refrigerant, GWP, maintainability, and long-term serviceability will play an important role in the future.

For companies, it may therefore make sense to check existing equipment and refrigerant inventories and to specifically opt for future-oriented technologies when making new purchases.

Recommendations for practice

• Review existing refrigerant inventories and service processes
• Consider the refrigerant used and its GWP value when purchasing new dehumidifiers
• Include R454C-based devices in planning for suitable applications
• Prepare service teams and specialist personnel for new requirements early on
• Monitor the further development of F-Gas regulations and the transition to low-GWP refrigerants

F-Gas Regulation and Dehumidification: We are here to advise you

The choice of the right dehumidifier and refrigerant depends on the application, operating conditions, and technical requirements. The Dantherm Group supports specialist planners, companies, and operators in selecting suitable solutions for professional dehumidification.

Whether it is product specification, technical documentation, or advice on our R454C dehumidifiers – our team is happy to support you with planning and implementation.

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