California HVAC Contractor License Vocabulary Game

Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.

There are 4 games built on 20 CA C-20 HVAC terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.

OpenExamPrep researched each term from the California Contractors State License Board (CSLB) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.

The C-20 classification is issued by the CSLB for warm-air heating, ventilating, and air-conditioning contractors. It requires passing two closed-book CSLB exams, the C-20 trade exam and the Law and Business exam, with 3 1/2 hours for each. CSLB does not publish a passing percentage.

You need 4 years of journeyman-level experience within the past 10 years. Up to 3 years of education from an approved program can substitute for experience. You must be at least 18 years old.