Electric heating fabric

An electrical heating fabric comprising warp strands and weft strands, two opposed selvedges being formed by interweaving said warp and weft strands, electrically conductive lead wires being provided as a warp in each of said selvedges, warp threads of electrically insulating material being disposed between said selvedges, the weft strands comprising separate spaced groups of thin threads of electrically insulating material and separate spaced groups of thin wires of electrically conductive material, respectively, said groups of weft threads and said groups of weft wires being arranged in alternating parallel first and second groups, each of which first groups contains a plurality of thin parallel threads of electrically insulating material extending directly between the selvedges, each of which second groups contains a plurality of discrete thin wire strands of electrically conductive material extending in straight parallel lines directly between the selvedges, one of the ends of each individual one of the weft wire strands of each of the groups of electrically conductive material being in electrical contact with the lead wires of one of the selvedges and in electrical contact with the lead wires of the other of said selvedges, whereby, for a fabric of predetermined dimensions, various amounts of heat capacity may be provided by electrically disconnecting individual conductive weft strands from the lead wires in the selvedges.