Iowa HVAC Contractors License Exam Prep | Online Courses

The Iowa HVAC /Refrigeration with Gas (Master and Journeyperson) Online Exam Prep Course includes fully narrated highlighting guides, practice tests, theory, calculations, instructor support and test-taking tips and strategies. Topics include HVAC Terms, Principles, Administration, HVAC Installation, Venting, Duct, Combustion Air, Gas Piping, HVAC Electrical, Boilers, Exhaust, & Fire Protection, and Refrigeration Term System, Operation. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.