Water furnace 3 series one system heating tune up, cleaning, maintenance, safety inspection, filter rotation, humidifier setup and test run, electric auxiliary heat test run Install replacement 24x24x1 pleated air filter homeowners already had on site Aprilaire 600 humidifier pad is in good condition and system is ready for winter set on "Normal" #5 Set ground loop pressure at 40psi for winter preseason All equipment is clean safe and ready for heating