Heat Wave Icon - Steam, Vibration, or Thermal Symbol for Web & UI Design #3531098 (License: Personal Use)

The image displays three parallel, bold black S-shaped curves on a transparent background, evenly spaced and vertically aligned. This universally recognized glyph is used to denote rising heat, steam emission, or vibrational energy in icons and infographics. Its vector-style simplicity ensures clarity at any scale.

Used in weather apps (e.g., hot weather alerts), appliance interfaces (e.g., microwave or dryer steam settings), HVAC diagrams, and safety signage to indicate high temperature or thermal radiation. Matches user intent for visual shorthand of thermal phenomena.