More of a "how to". No outdoor workshop shed or garage; do not want large propane torches in the house.
Traditionally, I have only done large parts, silver soldered, in the summer, with bricks placed on the steel barbeque.
Here's a lubricator (displacement type) being silver soldered, the "stand" is an outdoor ornamental wood fireplace, with a bit of steel sheet on the top of the chimney, with bricks on that.
Nice thing is, with the snow around, no problem with accidental fires!
