Ammonia – Providing the right temperature for change

The effects of climate change have led to an increasing demand for heating and cooling. And the use of certain refrigerants can cause the release of greenhouse gases or other pollutants. It’s clearly time for a change. What if we use nature to save nature with a natural refrigerant?

A refrigerant with zero impact today and zero impact tomorrow. GEA goes Zero with four letters: N for natural refrigerant, H for high efficiency, H for hundred and fifty years in use, and H for heating and cooling. This is ammonia.

Natural refrigerant for a healthy planet

Ammonia is an inorganic compound also found in nature which is climate and environmentally friendly.

Highest Efficiency

Thanks to its excellent thermodynamic properties and high capacity, Ammonia is one of the most efficient refrigerants for industrial applications.

Hundred and fifty years in use

Ammonia has 150 years’ proven use as a safe and effective refrigerant. In a world of changing regulations ammonia remains future proof.

Heating and Cooling

Ammonia can be used for both heating and cooling for a wide application from minus 45 degrees to an industry-leading 95 degrees. Continuing development will bring even higher temperatures in the future.

Why ammonia

Ammonia (R717):
pros and cons
+ sustainable (ODP = 0, GWP = 0)- toxic
+ cost-effective refrigerant- flammable under certain conditions
+ excellent thermodynamic properties (extremely energy-efficient)- additional safety measures required: gas detectors, safety instructions for personnel
+ lighter than air (ammonia rises upwards, which simplifies the ventilation system)

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Ammonia: The Safety

GEA Natural refrigerants - NH₃ CO₂ HC

Webinar: Natural refrigerants

Join GEA’s on-demand Cooling Club webinar on Natural Refrigerants, entitled “Back to the future – Refrigeration technology with natural refrigerants in times of climate change”. Learn from the experts why to make the switch from F-Gas refrigerants to the more environmentally friendly, future-proof, energy-efficient, natural refrigerants such as Ammonia and CO2.

Soortgelijke video&apos;s

Ammonia: The future

Ammonia: The science

Ammonia: The what and how


The global warming potential (GWP) is a value that indicates the contribution to global warming. The GWP refers to the value of CO2 (GWP=1) as a benchmark. This means that a gas like R404A with its GWP of 3922 contributes 3922 times more to global warming than the same amount of CO2. Natural refrigerants have a GWP of 0 to 5.5.


The concept of the ozone depletion potential (ODP) is used as a measure of the effectiveness of a chemical compound in the degradation to the ozone layer it can cause, relative to the standard compound trichlorofluoromethane (R-11 or CFC-11) being fixed at an ODP of 1. Natural refrigerants have an ODP of 0.

GEA Solutions for natural refrigerants

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