1.    Infrared camera inspection of furnace heat exchanger   
2.   Test airflow for deadly carbon monoxide   
3.   Test ignition system for safe & proper operation   
4.   Test safety & control circuits for proper operations   
5.   Test exhaust system for proper venting   
6.   Lubricate & clean blower motor air vents   
7.   Measure temperature differences- Supply/Return   
8.   Inspect and adjust fan belt tension (if applicable)   
9.   Calibrate & level thermostat   
10. Inspect for combustible material around furnace   
11. Brush clean and vacuum burner   
12. Brush clean and vacuum heat exchanger   
13. Test furnace flame for proper burn mechanism   
14. Measure and adjust gas pressure for peak efficiency   
15. Lubricate all moving parts, per manufacturer   
16. Measuring amperage and voltage of blower motor   
17. Tighten and inspect all electrical wiring   
18. Clean upper and lower combustion vents   
19. Test for natural gas leaks   
20. Clean furnace exterior


The Bob Oliver 20 Point Heating & Cooling Home Inspection