Thermax IFWB™s offer high capacity and economical operation. The burner system(s) are fully automated with optional off site signaling available. The combustion gases pass through a series of heat exchanger piping to maintain a warm bath of water. The cryogen is vaporized and superheated through a tube bundle that is submerged in the bath. The bundle is fit with proprietary vortex generators. The bath provides ballast for vaporization and can be maintained at temperature for immediate use.