Heating maintenance in Hoschton. Tested operation of 2 systems. Upstairs system has dirty blower wheel, and ductwork with organic growth. Ultraviolet light system is recommended to combat organic and viral growth in systems and throughout the home. System has no form of water safety with rusted and leaky indoor coil. Ignition has heavy signs of wear. Furnace components are rusting out. Ductwork is under insulated for attic environment. Ac main electrical switch is burnt and pitted and secondary motor controller is weak. Outdoor coils is dirty and fins are deteriorating which is causing lack of airflow through coil which causes higher utility bills along with stress on system. With system age it needs a compressor saver hard start installed to maintain health of compressor. Main level systems also has dirty blower wheel and ductwork. Indoor coil is also rusted and leaking. System also has no form of water safety. Furnace components are heavily corroded. Outdoor air electrical switch is