Napoleon Extra Firestop for Direct Vent Sleeve Assemblies - For Use with 4" x 7" Venting Systems - W010-1777

A firestop is an important safety feature of your Napoleon direct vent system. It is required when a chimney penetrates a combustible wall or floor on the way to its eventual termination. The firestop insulates the chimney and protects the combustibles from the intense heat generated by the exhaust. This firestop is for use with any 4" x 7" Napoleon direct vent system. Using Napoleon direct vent components with your Napoleon direct vent fireplace will ensure an integrated system that works well wherever the fireplace is installed.

• Additional firestop for direct vent sleeve assembly
• For use with 4" x 7" Napoleon direct vent systems