13 POINT MAINTENANCE TUNE-UP FOR 10 HT UNIT. LUBRICATE ALL NECESSARY MOVING PARTS AND ADJUST BLOWER COMPONENT. CLEAN AND CHECK BURNERS AND BURNER OPERATION. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT, AIRFLOW, AIR FILTER, ENERGY CONSUMPTION, AND ALL ELECTRICAL CONNECTIONS. EVERYTHING IS RUNNING GOOD.