Fins on heating and cooling coils dramatically increase effective surface area compared to bare pipes, allowing air rushing across the coil to absorb or release thermal energy instead of bypassing gaps between pipes.

causalpending

Speaker

Unidentified Speaker — Fundamentals of HVAC - Basics of HVAC [klggop60vlM]

Evidence Quote

So to improve the heat transfer [38:36] of this heating or cooling coil we put these fins all the way across the pipes, and that allows the heat in there to To transfer and and conduct through the these fin sheets

Source

Fundamentals of HVAC - Basics of HVACThe Engineering Mindset
Created: 8/13/2026, 4:57:53 AM

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