An optional outside air kit is designed to introduce fresh, outside air to the firebox as desired. It is an important accessory in newer, more air-tight construction for an adequate supply of fresh air. Some local building codes may require the addition of an outside air kit.
When installing an air kit such as the AK4, it must terminate at a clear, unblocked exterior location. Do not take combustion air from an inside space such as an attic or garage space.
This combustion air assembly is for use with Monessen Vent Free Fireboxes. Actual item may vary in appearance versus photo. The flex duct supplied measures about 10" compressed and extends up to approximately 3 feet. Also included is the outside air vent termination and collar.