The glass butane torch. I made this torch about 18 years ago after studying many pictures from Steve bates ( please tag if you know) This concept has always fascinated me and I made a series of them until one blew up with butane in my lap and I decided it wasn't worth the risk of making more. The butane is controlled with a J young needle valve. When you open the valve it allows a high pressure stream of butane to flow out, which in turn creates a Venturi effect. This effect siphon's air in behi

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