GOING OUT TO DO A MAINT ON THE SYSTEM FOR THE HEATER AND AC. OFFICE APPROVED $99 IN TOTAL FOR BOTH MAINT TO BE DONE. I DID DISCUSS COMFORT CLUB WITH THEM SHE SEEMED INTERESTED BUT DECLINED. SHE STATED THAT THIS IS THE FIRST TIME THEY ARE EVER DOING MAINT ON THEIR SYSTEM. AC IS LOCATED IN THE BACKYARD AND THE HEATER SHE HAS NO CLUE. MOST LIKELY IN THE ATTIC BECAUSE SHE HAS SEEN IT-AK