STRUCTURE OF EXTERNAL COMBUSTION HOT AIR STOVE

PURPOSE:To increase the heating area of the checkers in the regenerator of a hot air stove unnecessitating an enormous expense in remodeling the equipment. CONSTITUTION:A shell 12 is added to the upper part of a regenerator 2 to increase the volume, and the checkers 14 are extended into the shell 12 to increase their heating area. Meanwhile, a dome connecting pipe 5a is extended upward from the top of a combustion-chamber dome 3 and connected to the formed regenerator dome 6. The combustion chamber need not be enlarged, only the simple remodeling of equipment is applied, and the remodeling expense is reduced.