| Energy Efficiency | 80% AFUE |
|---|---|
| Stages of Heating | Two-Stage |
| Quiet Operation | SilentComfort™ Technology and Sound Absorbing Insulation |
| Motor | Variable Speed |
| Enhanced Humidity Control |  |
| Blower Compartment | Insulated |
| Air Filter and Humidifier Compatible | |
| Ultra-Low Continuous Fan | |
| Dual-Fuel Capable | |
| Ignition | SureLight® Silicon Nitride Ignitor |
| Parts Warranty | 10-Year Limited Warranty on covered components |
| Heat Exchanger Warranty | 20-Year Limited Warranty |
