Came back on 01/23/26 and properly performed the followings on the MAIN FLOOR SYSTEM : -installed an AprilAire 800 humidifier -installed an ionizer -installed an Apco-x UV light -installed a wet safety switch -properly cleaned the blower wheels -cleared the drain line -upgraded the flu pipe from single wall to B-Vent The electrician needs to come and run a 240v with 20A breaker for the humidifier. Homeowner already paid $1,200 for the electrical job. The Plumber needs to come and connect the humidifier water line to the cold line of the water heater, and connect water at the bottom of the humidifier. I need to come back after the electrician and plumber finish their work to test humidifier.