The mark consists of a yellow bordered shield with an orange sun centered at the top, with yellow rays coming down, and spreading out from the sun to the bottom of the shield. A silver circle centered in the middle, with black number, and the letters "3Ht" inside, black capitalized lettering of the word "THERMAL", is over the silver circle, and orange capitalized lettering of the words "ALL WEATHER SHIELD", is centered below the silver circle.
The color(s) orange, yellow, black, and silver is/are claimed as a feature of the mark.