Which feature is critical for preventing ice buildup in the BAK-14's pneumatic components?

Heating elements are essential for preventing ice buildup in the pneumatic components of the BAK-14 system. In cold weather conditions, moisture in the air can freeze and create ice, which can obstruct or damage pneumatic systems that rely on air pressure to operate. Heating elements work by raising the temperature of these components, keeping them above freezing to maintain proper functionality and prevent ice formation.

This method is particularly effective because it provides a direct source of heat to critical areas where ice could potentially develop. By ensuring that the pneumatic components remain warm, heating elements allow for smooth operation even in harsh weather conditions, preventing interruptions in service and potential safety hazards associated with ice accumulation.

Other options, while potentially beneficial in their own contexts, do not directly address the immediate concern of ice formation in pneumatic systems. Insulation materials help in retaining heat but do not actively prevent ice formation like heating elements do. Humidity sensors can detect moisture levels but do not provide a solution; they simply signal when conditions are right for ice formation. Anti-freeze fluid is more relevant to liquid systems rather than the pneumatic systems like those in the BAK-14, which operate using air.