Majestic
Majestic Chimney Air Kit | CAK8A
Majestic Chimney Air Kit | CAK8A


The Majestic CAK8A is a chimney air kit for Hearth & Home Technologies factory-built fireplaces, tested and listed to UL 127 and ULC S610. An air box sits on top of the fireplace around the chimney pipe, and a 4 inch duct brings outside air to it from an inlet hood on an outside wall. Check that CAK8A is the kit your fireplace manual calls for.
Details
| Part number | CAK8A |
|---|---|
| Kit contents | 1 chimney air box assembly, 1 outside air inlet vent hood, 2 wire ties, 1 hardware pack |
| Duct | 4" Class 1 duct, up to 20 ft; up to 40 ft with 6" duct and a 4 to 6 inch adapter (adapter not included) |
| Inlet hood height | At least 4 ft above ground; in a chase, at least 3 ft below the chimney top |
| Wall opening | 4-3/4" diameter hole |
| Listing | UL 127 and ULC S610 |
| Instructions | Hearth & Home Technologies 4070-144, covering CAK4A, CAK5A and CAK8A |
| Brand | Majestic |
Questions people ask us
Which fireplaces use CAK8A?
The kit is listed for specified Hearth & Home Technologies fireplaces, and your fireplace installation manual names the right kit: CAK4A, CAK5A or CAK8A. Send us your model and we will check it.
How long can the duct run be?
Up to 20 feet of 4 inch Class 1 duct, or up to 40 feet using 6 inch duct with a 4 to 6 inch adapter, which is not included. Insulated duct is strongly recommended in colder climates.
Where does the outside air hood go?
No lower than 4 feet above ground. In a chase, at least 3 feet below the top of the chimney. A 4-3/4 inch hole is enough for the wall opening.
Who do I contact with questions or about a return?
Contact us with your order number or the part number, CAK8A, and we will answer questions and walk you through the next steps on a return.
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Manuals and warranty
Warranty terms come from Majestic and depend on the product. Read the manual and the warranty for your model before you order.
Our warranty libraryยท Chimney air kit instructions, CAK4A, CAK5A, CAK8A (PDF)Ask us before you order
