Heat Wavy Lines black filled icon
Three rising wavy lines representing heat or steam
About the Heat Wavy Lines black filled icon
Three tapered S-curves rise side by side at slightly different heights, the universal shorthand for radiating heat, steam or warm vapor. Without any container drawn, it reads purely as temperature, warmth and a hot surface. Use it on thermostat and smart home controls, weather app condition lists, oven and cooktop indicator labels, hot food and beverage menus, and sauna or spa signage.
Each stroke thins at both ends and thickens through the middle bends, which gives the lines a soft, drifting feel rather than a rigid zigzag. The staggered heights stop the group from looking mechanical. It pairs with thermometer, fire and snowflake icons for a temperature set, and works well overlaid on a cup or plate icon.
This is the solid black filled version of the heat wavy lines icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
