For this job, I worked on a double super tune-up on these two gas furnace systems. I went through all the mechanical and electrical parts of the system and checked for maximum efficiency. I notified the customer about bad dust levels in his ducts, a recommended a duct cleaning for each system. I also mentioned how much air he is loosing due to his plenums being open. A membership conversion was also offered to get more benefits. Customer rejected all work, and has other issues going on. Thank you for choosing Comfort Experts, have a great day!