Heating tune up in Woodstock. Tested operation of 2 furnaces. Discovered both systems with dirty blower wheels and ductwork. Both furnaces have weak blower motor controllers. Upstairs system thermostat is outdated but still functional. System has no water safety to protect against flooding in the attic due to common drain line clogs. Both systems would greatly benefit from ultraviolet light systems to combat organic and viral growth in systems and throughout the home. Systems are 15 years old and will need to be replaced soon. Both systems heating at this time