Which risk primarily increases when refrigerant R-410A leaks into a flame-heated residential furnace combustion chamber?

💡 Explanation

When R-410A contacts a flame, thermal decomposition occurs because high temperatures break down molecules releasing fluorine which rapidly reacts with water vapor in the combustion products, forming hydrofluoric acid, etching steel components. Therefore, corrosion escalates rather than filter ignition, monoxide increases, or efficiency reduction, involving distinct mechanisms.

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