The Thermanator was a gadget with the ability to freeze pools of water or thaw ice. It was created by the Inventor who became stranded on Barlow after accidentally using the device and freezing himself in an ice cube, it was only much later when MegaCorp replaced Gadgetron in the Bogon Galaxy that Ratchet and Clank rescued the scientist and bought the gadget for a thousand bolts.
- On Tabora, the first two water pools can be avoided instead of turning the water into ice with the Thermanator.
- On planet Yeedil, the Thermanator was not required to traverse the room it was supposedly meant to be used in.
- It is interesting to note that even though it seems to have similar effects to a freeze/melt gun, it does no damage at all to enemies.
- Ratchet & Clank: Going Commando (first appearance)