It's a little messy, but not too bad. It's definitely a garage project and not a basement or kitchen job. For small parts, I've been putting them in a box and "dusting" them. The more calm the air is, the less mess. Don't use too much air pressure when applying the powder. About 10 lbs seems to work good for me. The excess powder can be swept or vacuumed easily, so it's not much of a problem, but you wouldn't want it floating around the inside of your house.
I don't understand your question about a propane lamp or air lamp.
I garbage picked an old oven. As long as the elements work and it will hold a consistent temperature, it should work fine. Make sure it's electric and not gas. I got lucky and found a '70s era double oven (over and under). Had to replace one element, and it's 100%. Small items go in the smaller upper oven, bigger parts in the lower oven, and batches in both ovens together. I bought oven thermometers at the local hardware store so I could adjust my curing temperature accurately. Glass windows in the oven doors make it easier to see what's going on.
I'm having a lot of fun using my kit. I do mostly car parts. Sandblast, dust with powder, and bake in oven. I've had great results, and can't wait to do more. Good luck!
Hemi-T
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