An apparatus for producing a glass-coated wire, the apparatus comprising: first and second heating devices, the first heating device being adapted to heat metal core material to a melting temperature thereof, and the second heating device being adapted to separately and independently heat glass material to a drawing temperature thereof; said first heating device being adapted to independently receive a continuous feed of said core material and to flow portions of the molten metal core through a conducting tube to said second heating device; said second heating device comprising first and second physically separated regions each comprising a cavity, a first region cavity in said first region being adapted to receive through said tube a portion of the molten metal core material from said first heating device, and flow the molten core towards an outlet of said second heating device, while maintaining and holding said portion of the molten core in its molten state thereinside, and a funnel shaped cavity in said second region, said funnel shaped cavity being adapted to independently receive a continuous feed of said glass material, heat it by said second heating device to the drawing temperature, and direct the softened glass material towards said outlet, while shaping the softened glass material as a funnel having a central hole for receiving the molten core from the first region cavity; and said outlet of the second heating device being adapted to combine the flow of the molten core material from the first region cavity of the second heating device with the funnel-shaped softened glass material from the funnel shaped cavity by flowing the molten metal core into the central hole formed in the funnel-shaped softened glass at said outlet, to thereby permit continuous drawing of a stretched glass capillary tube filled with the molten core material through said outlet. first and second heating devices, the first heating device being adapted to heat metal core material to a melting temperature thereof, and the second heating device being adapted to separately and independently heat glass material to a drawing temperature thereof; said first heating device being adapted to independently receive a continuous feed of said core material and to flow portions of the molten metal core through a conducting tube to said second heating device; said second heating device comprising first and second physically separated regions each comprising a cavity, a first region cavity in said first region being adapted to receive through said tube a portion of the molten metal core material from said first heating device, and flow the molten core towards an outlet of said second heating device, while maintaining and holding said portion of the molten core in its molten state thereinside, and a funnel shaped cavity in said second region, said funnel shaped cavity being adapted to independently receive a continuous feed of said glass material, heat it by said second heating device to the drawing temperature, and direct the softened glass material towards said outlet, while shaping the softened glass material as a funnel having a central hole for receiving the molten core from the first region cavity; and said outlet of the second heating device being adapted to combine the flow of the molten core material from the first region cavity of the second heating device with the funnel-shaped softened glass material from the funnel shaped cavity by flowing the molten metal core into the central hole formed in the funnel-shaped softened glass at said outlet, to thereby permit continuous drawing of a stretched glass capillary tube filled with the molten core material through said outlet.