Performed the level 2 furnace and fireplace cleanings. Furnace: Burners and flame sensor are clean. Heat exchanger looks good. Combustion readings were normal. No CO detected in the air. Drain is clear. High limit passed the safety check. Heat rise was 38Â°. Unit is heating properly. Fireplace: I wiped away dust from the upper and lower compartments. I cleaned the pilot. Inspected and adjusted the logs. Cleaned the glass. Added in new embers. Cycled unit. Fireplace is heating properly.