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Evaluate, align, and develop your talent with the Lennox U™ workbook.

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BuildATech® in Spanish

World-class foundational HVAC training now in Spanish!

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Over 400 Online HVAC Coursesat Your Fingertips

Access our industry-leading courses from anywhere.

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Expert HVAC instructors

Our instructors have over 300+ years of HVAC industry knowledge and experience.

Flexible schedule

We offer online and instructor-led training to fit your schedule and learning needs.

HVAC training anytime, anywhere

Our online courses are available 24/7/365, and we offer instructor-led classes in 33 district offices.

Featured HVAC Courses

Technical, sales and business training in a classroom setting, led by experienced instructors who are dedicated to helping you succeed in your HVAC career.

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Our online HVAC training is available 24/7/365, on-demand with over 400+ courses at your fingertips. Click to explore our online learning center.

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BuildATech®

I want to tell you what an awesome program BuildATech® is. My nineteen-year-old son went through it last March and he’s performing like a star.

Keith Saunders

Aire Serv Heating and Cooling, Waco, TX

BuildASalesperson

As an AC novice, I came into this class with only the most basic understanding of how an air conditioner works. Working with the team at Lennox, I now feel confident and proficient as an HVAC professional.

Gregory Snavely

Mr. Fireplace Patio & Spa, Melbourne, FL

BuildAnInstaller

Learning the how/why of the system was a big help. Knowing the science and processes involved make understanding set up and troubleshooting much easier.

Alex Keedy

Peter Levi Plumbing, San Rafael, CA

Online HVAC Training

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Sales

The best salespeople never stop learning, and with our online HVAC sales training, you'll know how to impress even the most informed tech-savvy customers.

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Technician

Gain repeat customers and a great reputation by building trust and loyalty with homeowners through our technical online training series. Technicians learn proven HVAC techniques and knowledge to help you be the best in the field.

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Business Owner

Invest in your own knowledge and skills to take your HVAC company from good to great with our learning series designed to help you increase management efficacy, sharpen sales, benchmark to KPIs, and empower your employees to be the best in the industry.

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Installation

Installing HVAC systems can be a daunting task, but with our online training, your team will be equipped with the knowledge to complete the job correctly the first time. Don't leave installation to chance – invest in our online training and set your team up for success.

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Customer Service

Put your customers first and build trust and loyalty by actively listening to them every time you answer the phone or interact with them. Your team will learn how to respond to challenging situations and create an exceptional customer experience with our eLearning series.