2J University
LEVEL UP Your HVAC Skills, Business and Career With Continuous Training, Designed For HVAC Contractors.
CEU Credit Courses
We want to help contractors meet licensing requirements through training to help them be more knowledgeable and professional. You may earn CEU credits for successfully completing each course.
Product Training Events
These events are designed for contractors who work with the brands of the equipment sold at 2J Supply. Classes are generally in-person with hands-on instruction and include in-depth information on individual products and product families.
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Stay in the loop about upcoming 2J University training events coming to your area by filling out the form below.
HVAC 101: Fundamentals of Residential HVAC Systems
September 15, 2026 @2J Louisville; September 17 @The Rheem Integration Lab, Indianapolis; September 22 @2J Lexington; and October 1, 2026 @The Corbin Center
Get the essential knowledge and practical skills to begin a career in HVAC. Designed for entry-level technicians and those new to the industry, HVAC 101 covers residential heating, ventilation, and air conditioning systems—from core principles and components to basic service practices.
You’ll learn about:
- The refrigeration cycle, heat transfer, airflow, indoor air quality, electrical fundamentals, and safety
- The operation of furnaces, heat pumps, air conditioners, and ventilation equipment
- How major system components work together
- Common HVAC tools and materials, plus basic wiring diagrams and schematics
- Routine maintenance and basic troubleshooting
Build confidence through safe work practices, proper use of hand and diagnostic tools, and essential industry terminology. Leave with the technical foundation and hands-on skills to take your first steps in the HVAC field.
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8-10 a.m.
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FREE
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Light Breakfast Provided
HVAC 101
Date: 9/15/2026
Location: 2J Louisville
Time: 8 a.m. - 10 a.m.
HVAC 101
Date: 9/17/2026
Location: Rheem Integration Lab
Time: 8 a.m. - 10 a.m.
HVAC 101
Date: 9/22/2026
Location: Residence Inn*
Time: 8 a.m. - 10 a.m.
HVAC 101
Date: 10/1/2026
Location: The Corbin Center
Time: 8 a.m. - 10 a.m.
*Residence Inn by Marriott Lexington/Keeneland Airport, 3110 Wall St, Lexington, KY 40513
Econet Zoning
October 14 @2J Columbus & 15 @2J Toledo, 2026
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Ruud Commercial Training
October 20 @2J Louisville, 21, & 22 @2J Lima, 2026
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High Efficency Furnace Installation and Service
September 29 @2J Huntington & 30 @2J Piketon
2J University's High Efficency Furnace Installation and Service is a comprehensive 4 hour course covering the operation, components and sequence of operation of residential gas furnaces. This $25 course, which qualifies for 4 hours of Kentucky and Ohio CEUs, explores the safe operation, systematic troubleshooting, and industry best practices for residential gas furnaces. This deep dive is all about improving your service efficiency and diagnostic accuracy. Lunch will be provided.
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8 a.m.-12 p.m.
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$25
4 Hours Kentucky CEUs
Light Breakfast & Lunch Following
High Efficency Furnace Installation and Service
Date: 9/29/2026
Location: 2J Huntington
Time: 8 a.m. - 12 p.m.
High Efficency Furnace Installation and Service
Date: 9/30/2026
Location: 2J Piketon
Time: 8 a.m. - 12 p.m.
EcoNet® Zoning: Installation, Design & Troubleshooting Training
October 13 @2J Cincinnati, October 14 @2J Columbus, & October 15 @2J Toledo
LEVEL UP your understanding of EcoNet® Zoning Systems with this comprehensive hands-on training from 2J University. Learn how to properly design, install, commission, and service EcoNet® zoning applications to deliver maximum comfort, efficiency, and performance. EcoNet® zoning systems provide independent comfort control in multiple zones, helping optimize airflow, energy usage, and overall system operation.
Whether you’re new to zoning or just want to keep up with the latest tech, this class will provide the practical knowledge needed for successful installations and reliable long-term operation of EcoNet® Zoning Systems.
October 13, 14, and 15
8 a.m.-12 p.m.
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FREE
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Lunch Following
EcoNet® Zoning
Date: 10/13/2026
Location: 2J Cincinnati
Time: 8 a.m. - 12 p.m.
EcoNet® Zoning
Date: 10/14/2026
Location: 2J Columbus
Time: 8 a.m. - 12 p.m.
EcoNet® Zoning
Date: 10/15/2026
Location: 2J Toledo
Time: 8 a.m. - 12 p.m.
Ruud Commercial Training: Get Hands-On with Ruud Commercial HVAC Systems, Featuring the Ruud® Economizer
October 20, 21 & 22, 2026
Expand your commercial HVAC expertise and gain valuable hands-on experience with Ruud® commercial equipment, including the Ruud® Economizer, a ventilation accessory designed to improve indoor air quality and energy efficiency through the use of outdoor air for free cooling with this comprehensive hands-on training from 2J University.
Class attendees will learn the ins-and-outs of commercial equipment applications, Economizer installation, controls setup and configuration, commercial control board setup, and best practices for installation, commissioning, and troubleshooting. You’ll tour the fully operational 2J Supply Ruud® Commercial Trailer to see system layouts, components, economizer operation, and controls integration in action.
Leave with the confidence and practical knowledge to install, commission, service, and troubleshoot Ruud commercial HVAC systems in the field.
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8 a.m.-12 p.m.
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FREE
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Lunch Following
Ruud Commercial Training
Date: 10/20/2026
Location: 2J Louisville
Time: 8 a.m. - 12 p.m.
Ruud Commercial Training
Date: 10/21/2026
Location: 2J Dayton
Time: 8 a.m. - 12 p.m.
Ruud Commercial Training
Date: 10/22/2026
Location: 2J Lima
Time: 8 a.m. - 12 p.m.
HVAC Business 101: Building a More Profitable and Successful Contracting Company
October 27 @2J Dayton
LEVEL UP your HVAC business for 2026 and beyond by attending 2J University's HVAC Business 101: Building a More Profitable and Successful Contracting Company, October 27 at📍2J Dayton!
Being a great technician is only part of building a profitable company. This full-day, 8:30 a.m.-4 p.m., workshop will help HVAC contractors master the business side of the profession, from overhead, cash flow, labor rates, flat-rate pricing, and profitability to operations, marketing, hiring, and leadership.
Attendees will learn how to price smarter, increase average invoice value ethically, and make practical changes that drive stronger results without simply adding more work. You’ll leave with real-world benchmarks, a clear action plan, printed handouts, and an Excel-based financial calculator, developed by course instructor, James R. Leichter, President & CEO, Aptora Corporation, Mr. HVAC LLC, RA Tax and Accounting Inc., MrHVAC.com.
Workshop attendees are encouraged to bring their year-to-date income statement and a laptop to make the most out of this engaging, hands-on learning experience.
Individual registration for HVAC Business 101: Building a More Profitable and Successful Contracting Company is $50. Group registration for this high-value class is encouraged! Register 2 or more for $45 each.
About the Instructor
James R. Leichter, President & CEO, Aptora Corporation, Mr. HVAC LLC, RA Tax and Accounting Inc., MrHVAC.com, is the rare blend of master mechanic and serial tech entrepreneur. After turning a wrench straight out of high school, he channeled that frontline know-how into founding Aptora Corporation, creators of the award-winning Total Office Manager® ERP suite and Flat Rate Plus® pricing systems used by thousands of service contractors. Through his MrHVAC.com community and EGIA faculty work, James has delivered practical, no-fluff guidance to contractors in nearly every state, pairing street-smart operations wisdom with sharp financial insight from his role at RA Tax & Accounting.
October 27, 2026
8:30 a.m.-4 p.m.
Individual Registration: $50
Group Registration (2 or more): $45 Per Registrant
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Light Breakfast and Lunch Following
HVAC Business 101: Building a More Profitable and Successful Contracting Company
Date: 10/27/2026
Location: 2J Dayton
Time: 8:30 a.m. - 4 p.m.
