Tan, a member of Elena's biker gang, has one that consists of a thick, three-foot-high cylindrical tank with a nozzle. The tank straps to his back, and it's nozzle. The tank straps to his back, and it's filled with and oily substance that burns at high temperatures. The oil is discharged by compressed air and ignites from friction with the air.
Kuentz has one passed to him that is just described as homemade.
The Weapons Master of Razin has dual flame throwers that send out a roiling flame of six-thousand degree heat.