The use of steam instead of boiling had me interested, especially for the previously mentioned purpose of avoiding issues with voids in solder joints and such. Not being in water avoids water getting in the barrels.
I have several barrel sets to do soon and i plan on trying out steam and seeing how the results are.
I normally use a 40" stainless tank over a pipe burner. I am going to build some stands for inside the tank that will suspecd the barrels and also put the tank cover on. That way the barrels will be up out of the small amount of water in the bottom of the tank. That shoukd get the job done.
