Heat Pump Chiller Refrigerant Decoder

Select a refrigerant option to see where it stands on the GWP (global warming potential) scale and what that means for your project.

R134a

~1,430

GWP — legacy / transitional refrigerant

R1234ze

GWP — low-GWP refrigerant

R134a is still supported on existing and new equipment to make the refrigerant transition window manageable — but it is not a low-GWP option, and Koven Air does not present it as one. It carries roughly 1,430 times the global-warming potential of CO2, versus R1234ze’s GWP of under 1.

Need help specifying the right refrigerant for your project? Download Capacity and COP Spec Sheet →

Heat Pump Chiller Refrigerant Decoder

R134a

R1234ze

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