1. Draft switch for added safety. Shuts off the furnace in case of insufficient venting condition.

2. Soft mounted permanently lubricated induced draft fan motor reduces operational noise and improves the efficiency of the furnace.

3. Payne's slow-opening gas value quietly starts the heating cycle so you can enjoy the warm comfort of your home without distractions.

4. Aluminum "in-shot" burners maximize heat transfer.

5. Flame roll out switches. Will shut off the unit in the event of flame draw back.

6. Blower compartment door safety switch. Interrupts electrical supply to the furnace when the door is removed.

7. Electronic circuit board precisely monitors the furnace operation and has terminals for a humidifier and electronic air cleaner. Displays diagnostic codes making service easier (should it ever be required).

8. Payne's powerful permanently lubricated four speed blower motor and capacitor. Provides the right amount of airflow for heating and cooling.

9. Quality air filter. Improves indoor air quality and keeps your system running clean and efficient.

10. Pre-painted, scratch resistant, well insulated cabinet -- thicker than most competitive furnaces. Feels solid and is corrosion resistant for long lasting good looks.

11. Hot surface igniter improves the efficiency and start up of furnace operation by eliminating the pilot light.

12. Flame roll out switches. Will shut off the unit in the event of flame draw back.

13. Flame sensor. Shuts off the gas supply to the burners should the flame go out.

14. Internal temperature limit switch will safely shut off the unit in case of overheating.

15. Exhaust gas temperature limit switch which will shut off the furnace if the vent becomes blocked. This limit switch automatically resets itself.