1. Direct spark ignition lights the main burner when your thermostat calls for heat. Eliminates the wasteful, constantly burning pilot.

2. Direct drive two-speed blower motor means there are no pulleys or belts to adjust. And, no lubrication is required.

3. Centrifugal blower means more air with less noise.

4. Porcelain-like powder paint covers the surface uniformly, increasing protection from rust and corrosion with its high-gloss durable finish.

5. Ball-bearing induced draft motor is designed for increased reliability and easy service.

6. Internally enhanced plate fin outdoor coil has an extra large coil surface which provides higher efficiency and more heating and cooling capacity.

7. Every Duration™ compressor is tested for quality assurance. We go to great lengths to ensure compressor and system quality.

8. Internally insulated cabinet reduces cooling losses and blower noise.