Isobutane (R600a) vs. Common Refrigerants – Key Comparisons
| Isobutane (R600a) | Propane (R290) | HFC-134a | HFO-1234yf | Ammonia (R717) | |
|---|---|---|---|---|---|
| i-C₄H₁₀ | C₃H₈ | CF₃CF=CH₂ | |||
| 0 | 0 | 0 | 0 | 0 | |
| 3 | 3 | 1,430 | <1 | 0 | |
| Non-flammable | |||||
| Ventilation + leak detection | Same as R600a |
Why Isobutane (R600a) Wins?
Best balance of eco-friendliness (GWP=3) and cost
Proven in 500M+ household fridges (safer than ammonia)
No phase-out risk (unlike HFCs like R134a)
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