|Function||designed to fire explosive fireballs from his forehead|
|Location||Melty as an assistant at recycling plant|
Heat (Experiment 609) is orange dog-like experiment with small eyes, a big mouth, small ears and a large black oval on his forehead. Designed to fire heat from the black oval in his forehead. Heat was captured by Gantu, but rescued by Lilo and Stitch in "Snafu". He is voiced by Dionne Quan.