Learn how to build a homemade vaporizer with these easy instructions. You can always improve on these instructions for building vaporizers. Parts are fairly low cost and easy to track down these days. There are some general items you will need: source of heat (heat gun) with a small glass bowl, glass jar about 10" to 12" in diameter with some kind of cork top, a clear plastic bag, 90 degree pvc elbow with shut off valve, glass tube with a screen and some duct tape.



