In its own version of “Who Wants to be a Millionaire?,” actor Paul Ganus tests visitors’ knowledge of the hvacr industry at Nordyne’s booth at the Air Conditioning, Heating and Refrigerating Expo on Tuesday. If a participant answered the hvacr-related questions correctly, the participant received cash on the spot. At the end of the day, Ganus was to draw one winner who was to receive free deluxe hotel accommodations at the vacation destination of the contestant’s choice.