Justin Elliot - School Director
Founder and operator of The Online Trade School. Oversees
institutional operations and compliance

John Daniel Parker - Instructor
Master’s in CTE, licensed technician, 10+ years in HVAC
education and management.

The HVAC Technician program is a 100% online certificate program that prepares students for entry-level roles in the heating, ventilation, air conditioning, and refrigeration industry. The curriculum covers residential and light commercial HVAC/R systems through interactive online modules, virtual reality simulations, and applied lab exercises.

Program Length: 120 Clock Hours
Full-Time: 20 hours/week — 6 weeks
Part-Time: 10 hours/week — 12 weeks
Credential Awarded: Certificate of Completion


What is HVAC
HVAC Fundamentals
Electrical for HVAC/R
HVAC Refrigeration
Evacuation & Charging
Troubleshooting HVAC Systems


EPA 608 Universal Certification
A federally required certification for anyone handling refrigerants, administered through a proctored exam by EPA-approved testing organizations. Required for virtually all HVAC employment.
NATE Ready-to-Work Certification
An industry-recognized certification issued by North American Technician Excellence (NATE) through a proctored exam. Validates foundational HVAC knowledge equivalent to approximately one year of field experience.
OSHA 30-Hour Construction Safety
A proctored safety certification required by most HVAC employers as a condition of hire.


The Appliance Repair Technician program is a 100% online certificate program that prepares students for entry-level positions in the appliance repair industry. Students develop the knowledge and skills required to service and repair common household appliances such as refrigerators, dishwashers, dryers, and ovens. The program emphasizes electrical safety, diagnostic techniques, and applied troubleshooting simulations.

Program Length: 120 Clock Hours
Full-Time: 20 hours/week — 6 weeks
Part-Time: 10 hours/week — 12 weeks
Credential Awarded: Certificate of Completion


Appliance Repair Fundamentals
Safety & Electrical Basics
Tools & Testing Equipment
Refrigerators & Freezers
Washers & Dryers
Ranges, Ovens & Microwaves
Dishwashers & Garbage Disposals
Customer Service & Work Orders


EPA 608 Certification
Applies to the refrigerant-handling modules (refrigerators and freezers). A federally required certification administered through a proctored exam by EPA-approved testing organizations.
OSHA 30-Hour Construction Safety
A proctored safety certification required by most employers in the appliance repair industry.

School Address:
231 S Bemiston Suite 800, Clayton, MO 63105

HVAC Technician Program

Curriculum

Industry Certifications

Appliance Repair Technician Program

Curriculum

Industry Certifications