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

Porcelain-like powder paint covers the surface uniformly increasing protection from rust and corrosion.

Variable speed indoor blower starts at a slower, more efficient speed than conventional blowers. This design reduces short-cycling, and improves home comfort.

Side electrical connection for easy installation.

Corrosion-resistant screws resist rust and eliminates rust marks on the cabinet.

Direct spark ignition eliminates the wasteful, constantly burning pilot. You will never need to light or relight a pilot outside on a cold, windy night.

High efficiency fan and trim ring grille is designed for high performance and lasting good looks.

Internally insulated cabinet with foil faced insulation reduces heating and cooling losses and blower noise and is easy to clean.

Centrifugal blower means more air with less noise.

Exclusive: Water-shed system, a no leak, one piece base pan for rust prevention.

Two-stage gas valve for more comfortable and efficient gas heating.

(Not shown) Aluminized steel heat exchanger resists the abusive effects of corrosion for longer life. And it is backed by a 20-year limited warranty (gas/electric models only).

(Not shown) Side-by-side discharge is designed for easy installation.

(Not shown) DuraTuff^TM outdoor plate fin coil is extra large with internally enhanced copper tubing and provides higher efficiency and more heating and cooling capability.

(Not shown) Sloped drain pan for more complete condensate drainage.