In this episode of "Solder & Soot," we sit down with Joel Christianson of American Radiator which is based in Iowa. As we all know, the only constant thing in life is change. And Joel's story is a great example of learning how to adapt in this industry and how to diversify. In addition to learning more about the history of American Radiator, we also discuss what makes business partnerships successful and what opportunities lie in DPF cleaning.