HHT Chimney Air Kit for SL300 Series Chimney Systems | CAK4A Enhance Chimney Efficiency with Proper Airflow Control The HHT CAK4A Chimney Air Ki...

HHT Chimney Air Kit for SL400/SL1100 Series Chimney Systems | CAK5A Improve Fireplace Efficiency with Proper Chimney Airflow The HHT CAK5A Chimne...

HHT Colinear 30/30 Direct Vent Termination Kit with Black Termination Cap Complete Chimney Venting Solution for Gas Fireplace Inserts with Dual 30'...

HHT Colinear 30/30 Direct Vent Termination Kit with Faux Copper Cap Complete Gas Insert Venting Kit with Dual 30' Liners and Decorative Chimney Cap...

HHT Colinear 30/30 Direct Vent Termination Kit with Stainless Steel Vertical Cap Complete Gas Fireplace Insert Vent Kit with Dual 30' Liners and Du...

HHT Colinear 30/4 Direct Vent Kit with Black Termination Cap Complete Chimney Venting Kit for Gas Fireplace Inserts with 30' and 4' Flexible Liners...

HHT Colinear 30/4 Direct Vent Termination Kit with High-Wind Vertical Cap Complete Gas Fireplace Insert Vent Kit with Flexible Liners and High-Wind...

HHT Crushed Glass Media for Majestic & Heat-N-Glo Contemporary Gas Burners Modern Fireplace Style with Reflective Glass Ember Media Enhance you...

HHT Decorative Terra Cotta Termination Cap Cover for Direct Vent & B-Vent (TCG375) Enhance Your Chimney Termination with a Classic Terra Cotta ...

HHT DVP Top Louver for Trap Cap Terminations (TRAP-LV) Enhance Vent Termination Performance with Proper Airflow & Protection Complete your ven...

HHT Exterior Heat-Zone Brick Extension Kit for HEAT-OUT-GAS Essential Extension Kit for Installing HEAT-OUT-GAS Through Brick or Thick Exterior Wal...

HHT Gas Insert 14-1/2" Round Flashing Adapter Kit for Class A Wood-Burning Pipe Convert Your Class A Chimney for Gas Inserts with a Secure, Profess...

HHT Gasketed Glass Door for Majestic Sovereign Fireplace Secure, Efficient, and Stylish Fireplace Glass Door Solution The HHT Gasketed Glass Door f...

HHT High-Wind Vertical Termination Cap for SLP Direct Vent Pipe (SLP-TVHW) Reliable Vertical Vent Termination Designed for High-Wind Conditions Pro...

HHT Horizontal High Wind Trapezoid Termination (inlcudes 1 - SLP-WS) (SLP-HHW2) Terminate the vent run with a genuine OEM cap. Complete your instal...

HHT Horizontal High-Rise Termination - Stainless Steel (inlcudes 1 - SLP-WS) (SLP-HRC-SS) Terminate the vent run with a genuine OEM cap. Complete y...

HHT SLP-HVTK Horizontal Vent Termination Kit for Vermont Castings Gas Stoves Complete Horizontal Vent Solution for Vermont Castings Direct Vent Sto...

HHT Horizontal Vent Termination Kit - Includes Adjustable Termination Cap, 1" Firestop, 42" Flex SLP, and Adapters Dial in a safe, code‑ready venti...

HHT Insulated Outside Air Flex Duct Ensure safe and efficient airflow with the HHT ID4 Insulated Outside Air Flex Duct, designed for reliable outsi...

HHT IntelliFire Wi-Fi Module for Smart Fireplace Control | IFT-WFM Control Your Fireplace Anytime, Anywhere with the IntelliFire Smart Wi-Fi Module...

HHT AK4 Outside Air Kit for Majestic & Monessen Fireplaces Improve Fireplace Efficiency with Dedicated Outside Combustion Air Boost fireplace p...

HHT Micore Hearth Extension - 5 Pack Reliable hearth protection for wood-burning fireplaces Enhance fireplace safety with the HHT Micore Hearth Ext...

HHT AKD Outside Air Kit with Access Door (Part #AKD) Enhance Fireplace Efficiency with Dedicated Outside Combustion Air Improve fireplace performan...

HHT Outside Air Kit | AK22 Improve Fireplace Efficiency with Outside Combustion Air The HHT AK22 Outside Air Kit supplies fresh air directly to you...