Master Appliance is a company in Racine, Wisconsin. It Located in a modern manufacturing facility. In 1958, we introduced the first industrial-quality heat gun to the world market. In addition, we introduced the first butane-powered soldering iron/heat tools to the North American market in 1985. The heat tools that we provide are widely used for drying, heating, welding, shrinking, soldering, desoldering, and for many other applications requiring heating.