GROUND-TYPE HEATER FOR ANIMALS Russian patent published in 1997 - IPC

FIELD: agriculture, animal science. SUBSTANCE: the heater contains upper protective element as heat-insulating layer, electroheater designed as a netting made of basalt plastic rods at constant space between basaltoplastic tubes with conducting centers, lower protective element as a box with electroheater sieve applied along its perimeter. Moreoever, the ratio of rod and tube diameters is chosen to be 1:50. Upper protective layer is made of polyurethane foam. EFFECT: decreased energy expenses, higher rustproof and lasting quality. 2 cl, 2 dwg