HEATING APPLIANCE Russian patent published in 1995 - IPC

FIELD: heating. SUBSTANCE: heating appliance uses coil pipes with horizontal sections furnished with finning in the form of U-shaped members fitted on pipes with formation of gaps within 0.33 to 0.75 of the width of the member middle section, and the difference between the width of its side section and pipe diameter is 1 to 1.25 time larger than the width of the middle section of the finning member; finning members of each horizontal pipe section are positioned in a spaced relation to finning members of the adjacent horizontal pipe section, the finning member side section. EFFECT: improved design. 2 cl, 1 dwg