HHT Chimney Air Kit for SL300 Series Chimney Systems | CAK4A

HHT Chimney Air Kit for SL300 Series Chimney Systems | CAK4A Enhance Chimney Efficiency with Proper Airflow Control The HHT CAK4A Chimney Air Kit ensures safe, efficient airflow for SL300 chimney systems. Built to UL 127 standards for lasting performance. Key Features Designed exclusively for SL300 series chimney systems Tested and listed to UL 127 and ULC S610 standards Includes chimney air box, vent hood, wire ties & hardware Product Features Complete Chimney Air Kit Includes air box assembly, outside air inlet vent hood with stucco flange, wire ties, and installation hardware. Optimized Airflow Performance Supports proper air circulation within the chimney system, reducing the risk of overheating and improving fireplace efficiency. Tested & Certified Safety UL 127 and ULC S610 certified for Hearth & Home Technologies fireplaces, ensuring compliance and safe operation. Flexible Installation Options Can be installed on standard or see-through fireplaces; accommodates different venting requirements and duct routing. Cold Climate Protection Supports the use of P-traps and insulated ducting to prevent backdraft and maintain performance in cold-weather installations. Product Specifications Specification Details Manufacturer Hearth & Home Technologies (HHT) Model Number CAK4A Compatibility For SL300 series chimney systems only Kit Includes Chimney air box assembly, inlet vent hood (with stucco flange), 2 wire ties, hardware package Duct Connection 4" Class 0 or Class 1 duct (UL181 approved) Vent Hood Placement Min. 4 ft above ground; if in chase, 3 ft below chimney top Certification UL 127, ULC S610 Recommended Accessories Insulated ducting for colder climates; P-trap installation recommended   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.