IronStrike Outside Air Kit (4’’ I.D. x 10 ft. long insulated flex)

The IronStrike Outside Air Kit (4’’ I.D. x 10 ft. long insulated flex) is designed to improve combustion efficiency and indoor air quality for your wood stove or fireplace insert. By drawing fresh outside air directly into the firebox, this insulated outside air kit enhances burn performance while reducing negative air pressure inside your home. It’s an essential upgrade for modern, energy-efficient homes with tight construction.

Featuring a 4-inch inside diameter and 10-foot insulated flexible duct, this kit ensures reliable airflow and consistent combustion in high-efficiency wood heating systems. Easy to install and built for durability, it helps maximize heat output while promoting cleaner, more controlled wood burning.

Features

• 4" I.D. x 10 ft. Insulated Flex Duct – Durable, flexible design for secure outside air connection.

• Improves Combustion Efficiency – Supplies dedicated fresh air for optimal wood stove performance.

• Reduces Indoor Air Pressure Issues – Ideal for tightly sealed, energy-efficient homes.

• Enhances Heating Performance – Supports consistent burn rates and improved heat output.

• Compatible with IronStrike Wood Stoves & Inserts – Designed for select high-efficiency models.

• Easy Installation Upgrade – Essential accessory for safe and efficient wood heating systems.