For this job, I worked on a super tune-up on this gas furnace system. I went through all the mechanical and electrical parts of the system and checked for maximum efficiency. Insulation upgrade was recommended to customer, customer knew she was low on insulation, she approved for an r11 insulation upgrade. Job has been scheduled for February 10th at 9:00 to 11:00 a.m. window. Thank you for choosing Comfort Experts, have a great day!