The cylindrical shape of the casing and the special design of the heating elements along with a high-performance fan provide a concentrated directed flow of warm air with an increased range of the jet, which allows to achieve a higher temperature of the exhaust air. The strong metal case with a high-quality polymer coating, heating elements made of stainless steel, provide high corrosion resistance and make it possible to use units in the conditions of construction sites, warehouses. The heat-reflecting screen made of galvanized steel allows to reduce heat loss due to inefficient heating of the case and increase the heat transfer of the units.