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Professional HVAC training and certification. In-person and online courses for heating, ventilation and air conditioning technicians. marjoufi LLC
Certification Prep: EPA 608 Exam, OSHA Safety & NATE Fundamentals
This course is designed to prepare students for the most important HVAC.
Troubleshooting & Advanced HVAC Skills: Diagnostics, Repairs, Heat Pumps & Controls
Master React from basics to advanced concepts with React Front To Back.
HVAC Fundamentals: Beginner’s Guide to Heating, Ventilation & Air Conditioning
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HVAC Fundamentals: Beginner’s Guide to Heating, Ventilation & Air Conditioning
HiStudy Education Theme by Rainbow-Themes is a user-friendly WordPress tool designed for.
Troubleshooting & Advanced HVAC Skills: Diagnostics, Repairs, Heat Pumps & Controls
Master React from basics to advanced concepts with React Front To Back.
Certification Prep: EPA 608 Exam, OSHA Safety & NATE Fundamentals
This course is designed to prepare students for the most important HVAC.
Know About marjoufi LLC Learning Platform
marjoufi LLC is a Wyoming-registered LLC (EIN: 98-1882579) based in Sheridan, WY. We provide hands-on and online vocational training for HVAC technicians, focused on safety, code compliance, and practical skills. Registered office: 30 N Gould St Ste R, Sheridan, WY 82801.
Flexible Classes
Learn From Anywhere
Hands-On HVAC Training — Online & In-Person
Top instructors from around the world
Building Skilled HVAC Technicians
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Trainees Trained
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Courses & Workshops
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EPA & Safety Certificates
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Weekly Intakes OpenWhat Our Students & Partners Say About MARJOUFI LLC
Marjoufi LLC gave me the confidence to pass my EPA certification exam. The instructors are clear, patient, and very experienced.
Michael D., Graduate Technician
Our company enrolled three new hires in the Marjoufi LLC workshop. They came back fully prepared to work on site. Great ROI for us
Valerie J., Operations Manager
The online courses are top-notch. I could study after work and still complete my certification on schedule.
Hannah R., Student
Marjoufi LLC ’s safety-first approach makes a big difference. Our maintenance staff now work with better confidence and compliance.
Pearl B. Hill, Facilities Director
The instructors at Marjoufi LLC explained everything step by step. I had zero background in HVAC, and now I’m confident handling basic systems.
Ahmed S., Entry-Level Technician
Marjoufi LLC provided the exact preparation I needed for my licensing exam. Their online modules made it easy to balance work and study
Amine L., Certified HVAC Specialist
We sent our entire maintenance crew to Marjoufi LLC . The improvement in safety and efficiency was noticeable within weeks.
John P., Facility Manager
I liked the flexibility. I could take evening classes online and attend weekend workshops in person. It fit my schedule perfectly
Emily K., HVAC Apprentice
Marjoufi LLC Training is the best investment I’ve made in my career. The certificate I earned helped me land a full-time HVAC technician job.
Carlos R., Graduate Student
Marjoufi LLC Training gave me the confidence to pass my EPA certification exam. The instructors are clear, patient, and very experienced.
Michael D., Graduate Technician
Our company enrolled three new hires in the Marjoufi LLC workshop. They came back fully prepared to work on site. Great ROI for us
Valerie J., Operations Manager
The online courses are top-notch. I could study after work and still complete my certification on schedule.
Hannah R., Student
Marjoufi LLC safety-first approach makes a big difference. Our maintenance staff now work with better confidence and compliance.
Pearl B. Hill, Facilities Director
The instructors atMarjoufi LLC Training explained everything step by step. I had zero background in HVAC, and now I’m confident handling basic systems.
Ahmed S., Entry-Level Technician
Marjoufi LLC provided the exact preparation I needed for my licensing exam. Their online modules made it easy to balance work and study
Amine L., Certified HVAC Specialist
We sent our entire maintenance crew to Marjoufi LLC . The improvement in safety and efficiency was noticeable within weeks.
John P., Facility Manager
I liked the flexibility. I could take evening classes online and attend weekend workshops in person. It fit my schedule perfectly
Emily K., HVAC Apprentice
Marjoufi LLC is the best investment I’ve made in my career. The certificate I earned helped me land a full-time HVAC technician job.
Carlos R., Graduate Student
Meet the marjoufi LLC Instructor Team
10+ years training field techs on residential/commercial systems—airflow, charging, and electrical diagnostics. Leads Atlas Fundamentals Bootcamp and Heat Pump workshops.
Focused on refrigerant handling, recovery, vacuum, and brazing safety. Runs the EPA 608 Prep & Exam days and advanced recovery clinics.
Troubleshooting VFDs, economizers, and BMS integration. Leads Diagnostics & Controls modules with real case studies.
Teaches OSHA compliance for HVAC crews, with practical job-site checklists and documentation best practices for audits.
Specializes in cold-climate heat pumps, sizing, line-set practices, commissioning and startup QA.
Duct layout, static pressure testing, and air balancing for comfort and efficiency. Runs the Duct Design & Air Balancing Workshop.
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