I have a few questions, first just let me say that I have never done this nor will do this. I have an older welding machine that has settings for pipe thawing. I know in the old days people used arc welders to thaw pipes. In theory it sounds great using the resistance of the pipe to make heat and melt the ice. I have jutst heard horror stories of the plumber that called the weldor to thaw some pipes, and the neighbours house burnt down. Does any one still use welding machines to thaw pipes? How are the new dedicated thawing machines different.? Thanks, John.
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