I have been researching oxalic acid vaporizers. This is what I built and wanted your opinions on it. I made everythingg from scrap I had in my shop. The box is a shallow supper that I screwed up and cut the boards too narrow. The first two pics show it set up for use with a portable propane torch. The last pic shows it set up for 12 volt use. All the copper fittings are tig welded for an air tight joint.
Let me know what you think,