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Refrigerant GWP Guide and Comparison
GWP compares the integrated warming effect of a gas with carbon dioxide over a stated time horizon, but the numerical value changes with the IPCC assessment basis.
How to Use This Guide
This hub organizes 100-year global warming potential values. Use it to build a shortlist, then open each refrigerant guide for composition, safety class, GWP basis, ODP, applications, alternatives and source links.
A refrigerant designation alone never confirms compatibility. Equipment approval, capacity, pressure, lubricant, component materials, controls, charge size, technician competence and destination rules must be reviewed together.
Key Selection Questions
Technical fit
What evaporating and condensing temperatures, capacity, pressure ratio, discharge temperature and heat-exchanger behavior must the system support?
Safety fit
Which toxicity, flammability, charge-limit, ventilation, detection, occupancy and technician requirements apply to the equipment location?
Environmental fit
Which GWP assessment basis, ODP rule, leakage expectation and energy-efficiency objective govern the project?
Regulatory fit
Is the decision for new equipment, servicing, conversion, manufacture, import or reclaimed material, and what is the destination jurisdiction?
Authoritative Starting Points
- US EPA SNAP refrigeration and air-conditioning substitutes
- European Commission F-gas legislation
- UNEP Ozone Secretariat Kigali Amendment overview
Rules and published climate values can change. This page was structured in July 2026 and should be checked against the latest official source before use.
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