2018 Bryant high efficiency gas furnace 5 ton drive 100K BTU #10 humidifier panel 20x25x4 filter media cabinet Shop back all equipment, resurface flame sensor, test ignition system, remove drain assembly for cleaning, inspect and reinstall existing air filter, test run all equipment in multi-stage heating Install replacement #10 humidifier evaporator pad and run test Humidifier is controlled by first floor thermostat All equipment is clean safe and ready for winter