Heat black outline icon
Three wavy arrows rising from a flat surface inside a circle
About the Heat black outline icon
A flat diamond-shaped plane sits inside a thin circular frame, with three wavy arrows curling upward from its surface to show heat radiating away. The wavy shafts read as warm air, steam or thermal energy leaving a hot object, which suits HVAC and heating controls, thermostat and smart-home apps, appliance manuals, cooking and oven interfaces, and material or fabric property labels.
The three arrows rise at equal spacing with matching arrowheads, so the motion reads as a steady upward flow rather than random squiggles, and the low flat plane anchors them. It pairs with cold, humidity and temperature gauge icons from the same set. Keep at 32 px so the wave curves stay separate.
This is the black outline version of the heat icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
