Ahlgren said one of the school's strengths is its systems-concept of teaching, rather than focusing on product features and benefits. The company said it fills classes regularly without any advertisements. The company recently opened a school in Tianjin, China.
Greg Milewski, hydronics manager of Auer Steel and Heating Supply in Milwaukee, a speaker at the anniversary celebration, said his company sends its employees to the school, which has made it “the” hydronics house in southeast Wisconsin. Presenters included Schoolhouse participants ranging from a graduate of the 2001 summer class to Frank Gall, the Schoolhouse's first instructor in 1954.