| Energy Efficiency | 96% AFUE |
|---|---|
| ENERGY STAR® Certified | |
| Stages of Heating | Two-Stage |
| Quiet Operation | Steel Cabinet with Sound Absorbing Insulation |
| Motor | Power Saver™ Constant Torque |
| Blower Compartment | Insulated |
| Air Filter and Humidifier Compatible | |
| Ultra-Low Continuous Fan | |
| Ignition | SureLight® Silicon Nitride Ignitor |
| Parts Warranty | 5-Year Limited Warranty on covered components. This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration. |
| Heat Exchanger Warranty | Limited Lifetime Warranty |