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Wisconsin Classes

  • Wed, Jun 03
    Johnstone Supply
    Jun 03, 2026, 8:00 AM
    Johnstone Supply, 2420 W 4th St, Appleton, WI 54914, USA
    Cost: Free
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  • Wed, Jun 03
    Johnstone Supply
    Jun 03, 2026, 1:00 PM
    Johnstone Supply, 2420 W 4th St, Appleton, WI 54914, USA
    Cost: $ FREE
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  • Thu, Jun 04
    Johnstone Supply
    Jun 04, 2026, 8:00 AM
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, 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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  • Fri, Jun 05
    Johnstone Supply
    Jun 05, 2026, 8:00 AM
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, USA
    $150 / student. ESCO Institute Low GWP Refrigerant Safety Exam and Certification, if the exam is passed, is included in this course.
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  • Mon, Jun 08
    De Pere
    Jun 08, 2026, 8:00 AM
    De Pere, 715 N Eighth St, De Pere, WI 54115, 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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  • Thu, Jun 18
    Johnstone Supply
    Jun 18, 2026, 8:00 AM – 2:00 PM CDT
    Johnstone Supply, 2420 W 4th St Ste 1, Appleton, WI 54914, USA
    Cost: $ 200 A detailed, yet simple understanding of the refrigerant cycle.
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  • Thu, Jun 25
    Johnstone Supply
    Jun 25, 2026, 8:00 AM
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, 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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  • Fri, Jun 26
    Johnstone Supply
    Jun 26, 2026, 8:00 AM
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, USA
    $150 / student. ESCO Institute Low GWP Refrigerant Safety Exam and Certification, if the exam is passed, is included in this course.
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  • Tue, Jul 21
    Johnstone Supply
    Jul 21, 2026, 8:00 AM – 4:00 PM CDT
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, USA
    Cost: $ 285/ per Student 2-Day Refrigeration training focusing on electric components
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  • Wed, Jul 22
    Johnstone Supply
    Jul 22, 2026, 8:00 AM – 4:00 PM CDT
    Johnstone Supply, 715 N Eighth St, De Pere, WI 54115, USA
    Cost: $ 285/ per Student
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