In jewelry, silver and gold are "soldered". In the case of 14K gold, 14k solder is used which has a melting temp just below that of the gold you are soldering. It's not lead solder, like most folks think of solder. Platinum is actually welded as there is no known solder that handles that high a melting point...all the base metals would boil off. Working with platinum is tricky as it can ruin your torch and casting equipment because of the temps involved. So......that little model engine glow plug might simply be threaded into your stove somehow with the coil exposed to the flame area. Otherwise, if you use wire, a mechanical connection (tiny screw terminals or crimp on). If you go with a plantinum salts impregnated mantel, it just needs to be suspended over the flame area. Wouldn't mess with epoxy or solder...won't hold up to flame heat.
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