[Ralphy]

Thw owner told me he has welded heavier then 3/16" by pre heating the metal with a torch. I was surprised at how little it spatter, actually no spatter.

puppster, this welder is built for a novice, you set the thickness of the metal (gauge provided) and the wire size I think. You can over ride also.

The auto lens helmet is also a must. Boy welding has improved!

The 140 uses gas also.