Isobutane is

Isobutane is

• A. Yes, it is an acceptable substitute for all new household refrigerators and freezers
• B. No, it is not acceptable
• C. Only for commercial units
• D. Only for non-household appliances

Answer: (A)

Isobutane (R-600a) is a refrigerant used in many new household refrigerators and freezers because it cooling power is similar to other modern refrigerants while offering much lower environmental impact in terms of ozone depletion and global warming potential. When appliances are designed as sealed, low-charge systems and meet safety standards, using isobutane is an acceptable substitute for the refrigerant in new household units. Its flammability is a consideration, so manufacturers and installers follow strict guidelines to ensure safe use and labeling, but overall it’s chosen for both performance and environmental reasons.

Isobutane (R-600a) is a refrigerant used in many new household refrigerators and freezers because it cooling power is similar to other modern refrigerants while offering much lower environmental impact in terms of ozone depletion and global warming potential. When appliances are designed as sealed, low-charge systems and meet safety standards, using isobutane is an acceptable substitute for the refrigerant in new household units. Its flammability is a consideration, so manufacturers and installers follow strict guidelines to ensure safe use and labeling, but overall it’s chosen for both performance and environmental reasons.