Heating tune up in Roswell. Tested operation of 2 furnaces. Discovered upstairs furnace with worn flame safety, dirt blower wheel, humidifier pad is extremely worn and humidifier is slightly leaking. Ignition system has silica starting to build up so it is becoming weak as well. Downstairs furnace is under firing, extremely dirty blower wheel, flame safety is worn and the humidifier also has a slight leak. Both systems could benefit from duct cleanings and ultraviolet light systems to combat organic growth inside systems and protect air from pollutants. Both systems heating at this time. Homeowners want to think over repairs