The Excalibur 8500 IV series furnace has been redesigned to be more efficient and quieter with a new burner and blower assembly. The new design has eliminated the obstruction and minimized the turbulence in the blower housing. This removed the annoying frequency spikes, (see graph below) and the overall noise with an increase in the airflow.

Click here to view Noise Reduction Graph.

Ease of Installation
The compact size, low profile, lightweight construction and vertical installation option enhance space utilization possibilities and furnace placement flexibility for both the 8900 and 8500. A flexible adapter kit makes bottom discharge installation easy for both new and replacement applications.

Serviceability
Due to the superior design features and Exterior Access Door of the 8900 and 8500, all controls and crucial components are easily accessible from outside the vehicle, which eliminates the need to remove the furnace. In addition, unlike competitive units, there is no carbon build-up maintenance required.

Unique Vent Design
The 8900 and 8500 incorporate a unique outside vent design integral with the access door, which eliminates the need for a variety of vent kits.