FIELD: manufacture of building materials. SUBSTANCE: invention relates to production of bricks and stones, as well as other objects exposed to heat treatment, and consists in feeding heat carrier into kiln loading through several layered countercurrent streams converging in the center of kiln loading and moving one step upwards and then diverging from the center into opposite sides. Direction is many times changed. EFFECT: enhanced efficiency of process. 5 dwg, 1 tbl
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