Unique 2-Stage System - Choose your desired temperature and let the furnace continually monitor your comfort level-automatically! Operating on High BTU, High Fan for quick, quiet warm up, the furnace will automatically switch to low BTU, Low Fan to maintain the desired temperature.
Self Diagnostic Capability - Designed for long life and easy maintenance, the Excalibur XT includes built in self-diagnostics to save you time and money. Indicating a variety of troubleshooting from low or improper voltage input to module failure, a flashing L.E.D. will indicate any complications.
Easy Installation - With no special installation requirements, the Atwood 2-Stage Furnace can easily replace all 8500 series furnaces.
New Advanced Digital Thermostat - The innovative digital thermostat provides 13 heating/cooling functions with an advanced design to control both the furnace and roof top air conditioner.
Excalibur XT 
