| Feature | 
 
 
EL280 Two-Stage Gas Furnace
 
 | 
| Rating | 
  ( 4.7 )
 | 
| Energy Efficiency | 
80% AFUE | 
| Stages of Heating | 
Two-Stage | 
| Quiet Operation | 
Steel Cabinet with Sound Absorbing Insulation | 
| Motor | 
PSC | 
| Blower Compartment | 
Sealed | 
| Air Filter and Humidifier Compatible | 
  | 
| 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 | 
20-Year Limited Warranty |