Completed furnace, maintenance and inspection. I checked out all components and amp draws. I tested humidifier and it is working as it should. I checked for carbon monoxide and cleaned furnace. I found no issues with how the furnace is running at this time. Furnace is operational at departure. UV light system is recommended to keep bacteria from growing around the inside coil area. Surge protection is also recommended to protect the system from power outages or power surges that could short out or damage motors and electrical parts.