DCM2: Heat complete, replaced 14x20x1, 16x20x1 and 20x20x1 filters provided by homeowner. Both systems are fully functional and operating within manufacturer specifications at this time. Homeowner mentioned back room over garage is cooler in the winter and warmer in the summer. Talked to homeowner about adding duct work to the room if possible or installing a mini split in his garage. He wanted to speak with his wife about having a comfort advisor out, told him the shop would call Monday morning to schedule. Maintenance checklist attached.