Mat Miller started working in the radiator business back in 1981, working for his dad in a small radiator shop in Sunnyside, Washington. Mat and his Dad quickly learned the radiator business fixing everything that came through the door. In 1990, his family bought American Radiator in Pasco and Spokane. Mat moved to Spokane to manage that store and started an outside sales route to service northern Washington, Idaho, and western Montana. With four stores in operation, Mat moved to Pasco in 1996 to oversee the corporation. In 2006, Mat purchased the company from his parents so they could enjoy retirement. Sizing down the operation to one store in Pasco, the company covers a large area from Moses Lake to Yakima and down into Hermiston and Pendleton, covering a seventy mile radius, picking up and delivering work to farm and industrial accounts.