MN All License Boiler Prep Class   THIS CLASS WILL BE HELD IN PERSON.   Do not attend in-person classes if you have any cold or flu-like symptoms.  We would… Read More »MN All License Boiler Prep Class, March 21st & 22nd, 2024. 8AM to 4PM both days

  THIS CLASS WILL BE HELD IN PERSON. This class is an add-on for anyone going for a MN Class ‘A’ license and will follow the ‘MN All License Prep… Read More »Turbine Prep Class