Our free, online simulation training will make you a top-notch HVAC tech.


  • 100% Online

  • Computer, Tablet, or Smartphone accessible 

Learn By Doing 

  • Virtual animations for every difficult concept

  • Game-like simulations for every key job skill

No Cost

  • All training is free

  • Only pay if you find work through our platform​

Introduction to HVAC

  • Free, introduction to HVAC fundamentals

  • Animated videos about how HVAC works, key HVAC systems, and important HVAC equipment 

  • Pass the end-of-course assessment and receive a SkillCat certificate of competency

EPA 608 Universal

  • Receive an EPA 608 Universal certificate to be certified in all types of appliances

  • Take the exam online with a virtual proctor

NATE Ready To Work

  • Basic Safety

  • Key HVAC terms

  • 100% pass-rate on the NATE Ready To Work exam

Applied Math for HVAC Technicians

  • Covers basic math concepts required for HVAC Technicians

  • Algebra and Arithmetic

  • Geometry

  • Taking basic measurements

Electricity: Fundamentals and Skills for HVAC Techs

  • Introduces electricity, basic circuits, and components

  • AC and DC Power

  • Measurements and conversions

  • How to use a multimeter?

Chemistry: Fundamentals and Skills

  • Introduces the fundamentals of chemistry for HVAC Technicians

  • Principles of matter and energy

  • Chemical reactions and working chemistry

  • Chemical safety and hazardous materials

Temperature, Pressure, Heat, and Humidity

  • This course dives into the technical knowledge necessary for HVAC Technicians

  • Principles of temperature, pressure, and heat

  • Basics of heat and heat transfer

  • Pressure and Temperature relationship charts

Engineering Fundamentals

  • Expands further on the engineering principles for HVAC Technicians

  • Mechanics and Physics

  • Heat Transfer

  • Fluid Mechanics and Thermodynamics

Basic Mechanical Skills and Safety

  • Introduces the mechanical skills neccesary to work as an HVAC Technician

  • Basic mechanical tooling

  • Brazing and Soldering

  • Fabrication

  • Gauges, Manifolds, and other instruments

Understanding Manufacturer Documentation

  • Covers a variety of standard documents used by HVAC Technicians

  • Construction knowledge basics

  • Reading spec sheets

  • Component schematics

  • Circuit and wiring diagrams

Understanding Heating Systems

  • Explains the use and function of various heating systems

  • Heat exchangers and heat pumps

  • Electric heaters

  • Gas furnaces

  • Limit switches and sensors

Refrigeration Systems

  • Breaks down refrigeration systems into the major components while explaining the use and functions

  • Types of refrigeration systems

  • Evaporators and Condensers

  • Compressors, Fans, and Metering Devices

  • The Refrigeration Cycle

  • Residential AC Systems

Airflow Systems and Components

  • This course is an overview of airflow systems and components

  • Introduces airflow in HVAC systems and air quality needs

  • Blowers and fans

  • Ductwork and materials

  • Ventilations, grilles, registers, and diffusers

Electrical Systems and Automation Controls

  • Explores the electrical systems found in HVAC systems

  • Different types of motors

  • Thermostats and heating controls

  • Compressor contactors and relays

  • Wiring standards

Understanding a Complete System

  • This course will explore how each component interacts in a complete residential HVAC system

  • Pressure and temperature changes throughout a system

  • Dual operating systems

  • Part failure

Routine Maintenance Call Procedures

  • Explores routine procedures for preventative maintenance across HVAC systems

  • Forced air heating systems

  • Residential AC systems

  • Refrigerant charge verification

  • Condensate removal

  • Airflow checks

Leak Detection, Evacuation, and Recovery

  • Explains the use and function of various heating systems

  • Heat exchangers and heat pumps

  • Electric heaters

  • Gas furnaces

  • Limit switches and sensors

Charging the System

  • This course explores how to charge a system

  • Rules for charging

  • Why charging is necessary

  • Charging with superheat and subcooling

  • Other types of charging and tools used

Servicing Electrical Systems and Components

  • Explores how to service and repair various electrical systems and components

  • Fuses, capacitors, and relays

  • Motor overloads and winding resistances

  • Seized motors and motor issues

  • Checking a compressor

  • Electric furnaces

Servicing Heating Systems and Components

  • This course explores how to service and repair various heating system components

  • Heat pumps indoor and outdoor

  • Mechanical faults

  • Gas furnaces and boilers

  • Hydronic heating systems

Servicing Refrigeration Systems and Components

  • Explores how to service and repair refrigeration systems and components

  • "Normal" high and low side conditions

  • Evaporator temperature difference

  • Inefficient compressor

  • Inadequate airflow

  • Condenser operation

Design Considerations in a Home

  • Introduces important design factors for residential HVAC systems

  • Why systems are placed in specific areas

  • Needs of packaged systems

  • Needs of split systems

  • Installing Accessories

OSHA 10-Hour Construction

  • Prepare for the OSHA 10 hour certification course

  • Focus Four Hazards

  • Personal Protective Equipment

  • Scaffolding and Fall Protection

  • Power Tools and Heavy Equipment

Professional Development

  • Covers a variety of topics surrounding professionalism at work

  • Basic professional skills

  • Documenting your work

  • Career growth and development

Customer Oriented Service

  • Learn how to provide customer orinented service

  • Service industry best practices

  • Interacting with customer

  • Customer simulation

Frequently Asked Questions

How Is the online HVAC Training course set up?

When building the course, our goal was to make online HVAC training fun, engaging, and exciting! With that goal in mind, we have put a tremendous amount of multimedia material into our courses. As a student, you will never just be reading or listening to text- this is not a textbook! Every single part of our courses is full of compelling graphics, informative animations, and real-life images from HVAC systems. After each lesson- and within many lessons- you will be asked to answer HVAC technician questions or do HVAC system calculations focused on what you just learned. These HVAC system exercises make learning a lot more interactive and fun.

Will you help me get hired after the course?

Once you complete the online HVAC training, you will have the option to join our talent network. We have partnered with leading HVAC companies, and they are all hiring right now! Companies will look for new hands from this talent pool since you have proven your ability through training simulations and testing.

How much does the online HVAC training cost?

Nothing! Our online HVAC training is entirely free, and we have made it as simple as possible. We took out all the filler, which can cause similar programs to take up to a year, and worked with hiring managers to teach you the skills that you need to know to start your career in HVAC.

How do the simulations work?

We developed the HVAC training simulations based on real-world scenarios that you will encounter as an HVAC technician. These simulations allow us to test you on the information you just learned, and they teach you how to apply the knowledge to practical tasks.

Do I need a computer for online HVAC training?

To take our free online HVAC course, you will need a phone, tablet, or computer with an internet connection. A lot of our graduates took classes while they were on the job site or in between jobs. The HVAC course is super convenient and always accessible.

Is there a textbook for the online HVAC training?

No textbooks here! We wanted to design a free, online HVAC course that wasn't boring. All of our courses use animations, simulations, and quizzes to teach you the skills you will need to become an HVAC tech.

Do hiring managers like online courses like this?

Absolutely. We designed these courses with hiring managers from large HVAC companies to be sure that everything in the course is essential and approved by them. Also, hiring managers love simulations since it gives them a better understanding of how you apply the knowledge you learned in the course. That gives you an advantage over anyone who has just been studying a textbook.

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