Damaged steam coil with visible rupture, highlighting significant wear and tear, requiring urgent repair. Specifying the right coil is only part of the answer. Trap sizing, piping configuration, and coil pitch all play an equal role — and when any one of them is wrong, even a properly selected coil will freeze. It usually shows up after the first hard cold snap of the season. A tech gets a call — no heat, or worse, a coil that has already burst. The steam supply is fine. The