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Wisconsin Classes

  • Tue, Sep 08
    Johnstone Supply- De Pere
    Sep 08, 2026, 8:00 AM CDT – Sep 18, 2026, 4:30 PM CDT
    Johnstone Supply- De Pere, 715 N Eighth St, De Pere, WI 54115, USA
    Cost:$1,500/week per student- 2 consecutive weeks Week 1: Refrigeration Electrical/ Refrigeration Fundamentals Week 2: Refrigeration Fundamentals, continued Schedule weekly: Monday Labor Day closed Tuesday 8am-4:30pm Wednesday 8am-4:30pm Thursday 8am-4:30pm Friday 8am-noon
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  • Wed, Sep 09
    Johnstone Supply- Appleton
    Sep 09, 2026, 8:00 AM – 12:00 PM CDT
    Johnstone Supply- Appleton, 2420 W 4th St, Appleton, WI 54914, USA
    Cost: $ 125 Hydronic installation and controls.
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  • Thu, Sep 10
    Johnstone Supply- De Pere
    Sep 10, 2026, 8:00 AM – 12:00 PM CDT
    Johnstone Supply- De Pere, 715 N Eighth St, De Pere, WI 54115, USA
    Cost: $ 125 Hydronic installation and controls.
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  • Mon, Sep 28
    Johnstone Supply
    Sep 28, 2026, 12:00 PM CDT – Oct 23, 2026, 5:00 PM CDT
    Johnstone Supply, 2420 W 4th St, Appleton, WI 54914, USA
    4 Week Course - Building Qualified Techs From The Ground Up Week 1: HVAC Electrical Week 2: Gas Heating Fundamentals Week 3: Air Conditioning Fundamentals Week 4: HVAC Installation Best Practices
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  • Tue, Oct 06
    Johnstone Supply- De Pere
    Oct 06, 2026, 8:00 AM – 4:00 PM CDT
    Johnstone Supply- De Pere, 715 N Eighth St, De Pere, WI 54115, USA
    Cost: $185- Classroom and Lab- hands on training technicians of all skill levels will learn troubleshooting electrical, mechanical, and airflow issues associated with gas furnaces.
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  • Wed, Oct 07
    Johnstone Supply- De Pere
    Oct 07, 2026, 8:00 AM – 12:00 PM CDT
    Johnstone Supply- De Pere, 715 N Eighth St, De Pere, WI 54115, USA
    Cost: $150/ student Attendees will have the opportunity to complete a combustion analysis in our live fire labs, make adjustments, and get hands on experience
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  • Thu, Oct 15
    Johnstone Supply
    Oct 15, 2026, 8:00 AM – 4:30 PM CDT
    Johnstone Supply, 2420 W 4th St, Appleton, WI 54914, USA
    $300 / student. EPA 608 Certification Exam. Covers essentials needed to pass this required exam: Core, Type 1, Type 2, and Type 3 elements. Study materials provided. This is a full day session. Please bring a laptop if you would like the EPA exam to be done in real time. Paper exams also available.
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