The Thawer is a gadget manfactured by TerraNova. The Thawer allows Ratchet to heat up areas, to melt ice and de-crystalise salt cyrstals. The ice is usually in the way of Ratchet, not allowing Ratchet to continue, therefore Ratchet must use the Thawer to clear the path. When the ice is melted it creates a pool of freezing water, which Ratchet must swim throught to pass the area. However, Ratchet will lose health slowly if he enters the pool without a Insulation Suit on.