HHT Outside Air Kit | AK22
Improve Fireplace Efficiency with Outside Combustion Air
The HHT AK22 Outside Air Kit supplies fresh air directly to your fireplace, boosting performance and efficiency.
Key Features
- Provides outside combustion air
- Designed for HHT and Majestic fireplaces
- Includes hood, collar, bracket, and mounting hardware
- Flexible duct sold separately
Product Features
Supplies Fresh Combustion Air
Draws air from outside the home, reducing drafts and improving burn quality inside your fireplace.
Designed for Compatibility
Built for HHT and Majestic fireplace systems, ensuring a reliable and secure fit.
Easy Installation Kit
Includes outside air hood, mounting bracket, air doors, collar, screws, and wire ties. Everything is provided except the flexible ducting, which must be ordered separately.
Efficiency and Safety
Improves heating efficiency while helping fireplaces operate safely in tightly sealed or energy-efficient homes.
Flexible Duct Options
Works with UL 181 Class 0 or Class 1 ducting (insulated or uninsulated), giving flexibility for different installations.
Product Specifications
| Specification |
Details |
| Manufacturer |
HHT (Hearth & Home Technologies) |
| Model Number |
AK22 |
| Product Type |
Outside Air Kit |
| Compatibility |
HHT and Majestic fireplace systems |
| Included Components |
Outside air hood, collar, mounting bracket, left/right air doors, screws, wire ties |
| Duct Requirement |
4" flexible duct (not included, order separately) |
| Installation Options |
Left or right side of firebox |
| Certification |
Designed for UL 127 tested fireplaces |
| Function |
Supplies outside combustion air to fireplace |
Warranty
HHT Limited Warranty
Hearth & Home Technologies LLC (“HHT”) extends the following warranty for wood hearth appliances (each a “Product” and collectively, the “Product(s)”) and certain component parts outlined below (“Component Part(s)”) when purchased from an HHT authorized dealer or distributor.
| Warranty Period |
Component Parts Covered by this Warranty |
| 1-Year Components Only |
All purchased replacement parts and optional accessories |
See the full HHT Limited Lifetime Warranty for complete terms, conditions, and exclusions. Coverage applies to products at the original installation site and may vary by component.
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