A passively cooled pipe made of a material with a high coefficient of thermal conductivity that has a lockable, invertable, combustion bowl/storage compartment. The pipe is designed for the combustion of dry organic matter. It has a series of passive radiator fins about the outer faces of its sides for the dissipation of heat there along its body, and an aggressive smoke mixing design in the bore of the shank section that aids in the removal of tar and smoke particles. The inside volume of the shank also has a series of passive radiator fins in operational contact with the sides of the shank. There is a removable locking tool housed in the passive radiator fins on one of the outer faces, used to lock the combustion bowl in either of its positions. The locking tool also disassembles the two halves of the pipe for cleaning.