Trane > XT Furnace Grid
| XT90 | XT80 | |
| AFUE | Up to 92 | 80 |
| Energy Star | Yes | No |
| Convertible | Yes | Yes |
| Blower Speed | Four-Speed | Four-Speed |
| Heating Stages | Single | Single |
| Extended Warranty | Optional Available | Optional Available |
| Registered Limited Warranty | Lifetime Heat Exchanger, 5-year Functional Parts | Twenty-year Heat Exchanger, 5-year Functional Parts |
