Furnace clean and tune. Cycled system. Checked heat exchanger, ok. Checked and cleaned burners and flame sensor. Checked igniter, ok. Checked gas pressures and adjusted to maximize efficiency. Checked for CO in airstream, none found. Normal levels of CO and XS air in exhaust. System operating normal at this time. Quote for whole home dehumidifier send. Job complete. Ac and furnace clean and tune