{"title":"Greenheck Dampers \u0026 Louvers","description":"\u003cp\u003eShop Greenheck dampers and louvers for commercial HVAC and ventilation systems. Control airflow, pressure, and outdoor air intake with precision-engineered dampers and architectural louvers.\u003c\/p\u003e","products":[{"product_id":"greenheck-wih-louvered-gravity-intake-ventilator-4-inch-depth","title":"Greenheck WIH Louvered Gravity Intake Ventilator 4-Inch Depth","description":"\u003cp\u003eThe Greenheck WIH is a louvered gravity intake ventilator with a 4-inch depth profile, engineered for reliable passive fresh air intake in commercial and industrial building applications. Its louvered design provides weather protection while allowing natural airflow, making it a practical solution for gravity ventilation systems requiring a low-profile intake.\u003c\/p\u003e\u003cp\u003eBuilt to Greenheck's exacting standards, the WIH features durable construction suited for rooftop and wall-mount installations, offering contractors and engineers a dependable, low-maintenance intake ventilator for a wide range of building types and ventilation configurations.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring dependable louvered gravity intake ventilation in a compact 4-inch depth profile.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":52652926370068,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/WH_Alt-removebg-preview.png?v=1781191945"},{"product_id":"greenheck-wrh-louvered-gravity-relief-ventilator-4-inch-depth","title":"Greenheck WRH Louvered Gravity Relief Ventilator 4-Inch Depth","description":"\u003cp\u003eThe Greenheck WRH is a louvered gravity relief ventilator with a 4-inch depth profile, engineered for reliable passive pressure relief in commercial and industrial building ventilation systems. Its louvered design provides weather protection while allowing excess air pressure to exhaust naturally, balancing building pressure without mechanical assistance.\u003c\/p\u003e\u003cp\u003eBuilt to Greenheck's exacting standards, the WRH features durable construction suited for rooftop and wall-mount installations, offering contractors and engineers a dependable, low-maintenance relief ventilator for a wide range of building types and HVAC configurations.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring dependable louvered gravity pressure relief ventilation in a compact 4-inch depth profile.\u003c\/p\u003e","brand":"LK Metal Products","offers":[{"title":"Default Title","offer_id":52652927484180,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/WH_Alt-removebg-preview_51843b19-949a-4087-9427-52c3ff5a664f.png?v=1781192177"},{"product_id":"greenheck-eac-401-combination-louver-damper-drainable-blade-4-inch-depth","title":"Greenheck EAC-401 Combination Louver Damper Drainable Blade 4-Inch Depth","description":"\u003cp\u003eThe Greenheck EAC-401 is a combination louver and damper with drainable blade design and a 4-inch depth profile, engineered for weather-resistant air intake and exhaust with integrated airflow control in commercial and industrial building applications. The combined louver and damper construction eliminates the need for separate components, simplifying installation and reducing wall penetration depth.\u003c\/p\u003e\u003cp\u003eBuilt to Greenheck's exacting standards, the EAC-401 features durable construction suited for wall installations, providing contractors and engineers with a dependable, space-efficient solution for HVAC systems requiring both weather protection and active damper control in a single unit.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring a compact combination drainable blade louver and damper for weather-resistant, controlled ventilation in a 4-inch depth profile.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":52653168066836,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/EAC-401_Cutaway-removebg-preview.png?v=1781200930"},{"product_id":"greenheck-gfsd-211-out-of-wall-combination-fire-smoke-damper","title":"Greenheck GFSD-211 Out of Wall Combination Fire Smoke Damper","description":"\u003cp\u003eThe Greenheck GFSD-211 is an out-of-wall combination fire and smoke damper engineered to restrict the spread of fire and smoke through HVAC ductwork where the damper is mounted outside the rated wall assembly. Designed to meet UL 555 and UL 555S requirements, it provides both fire-rated closure and smoke control in a single unit for applications where in-wall installation is not feasible.\u003c\/p\u003e\u003cp\u003eBuilt to Greenheck's exacting standards, the GFSD-211 features a robust actuator and blade assembly that closes automatically upon detection of fire or smoke, offering flexible installation options while maintaining life-safety performance in commercial and institutional HVAC systems.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring UL-listed out-of-wall combination fire and smoke damper protection in HVAC systems where standard in-wall damper installation is not possible.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":52653220331796,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/GFSD-211-212-removebg-preview.png?v=1781202400"},{"product_id":"greenheck-cfsd-211-corridor-ceiling-combination-fire-smoke-damper","title":"Greenheck CFSD-211 Corridor Ceiling Combination Fire Smoke Damper","description":"\u003cp\u003eThe Greenheck CFSD-211 is a corridor ceiling combination fire and smoke damper engineered to restrict the spread of fire and smoke through ceiling-mounted HVAC ductwork in corridor applications. Designed to meet UL 555 and UL 555S requirements, it provides both fire-rated closure and smoke control in a single ceiling-mount unit, simplifying installation in corridor ceiling plenum configurations.\u003c\/p\u003e\u003cp\u003eBuilt to Greenheck's exacting standards, the CFSD-211 features a robust actuator and blade assembly that closes automatically upon detection of fire or smoke, helping protect building occupants and limit property damage in life-safety critical corridor HVAC systems.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and healthcare buildings requiring UL-listed corridor ceiling combination fire and smoke damper protection in ceiling-mounted HVAC duct systems.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":52653249233172,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/CFSD_Config-1_Cutaway-removebg-preview.png?v=1781203512"},{"product_id":"greenheck-esd-series-stationary-drainable-blade-louver","title":"Greenheck ESD Series Stationary Drainable Blade Louver","description":"\u003cp\u003eThe Greenheck ESD Series is a stationary drainable blade louver engineered for weather-resistant air intake and exhaust in commercial and industrial building applications. Available in 6-inch depth (ESD-635) and 4-inch depth (ESD-435, ESD-403) profiles to suit a wide range of wall and rooftop installation requirements.\u003c\/p\u003e\u003cp\u003eThe drainable blade design effectively sheds water and debris while maintaining high free area for efficient airflow, providing superior weather protection without compromising ventilation performance. Durable construction and low-maintenance operation make the ESD Series a reliable specification for demanding commercial HVAC applications.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring dependable stationary drainable blade louver ventilation with proven Greenheck quality.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612396151060,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/ESD-635_Cutaway-removebg-preview.png?v=1781196561"},{"product_id":"greenheck-esj-edj-series-stationary-j-blade-louver","title":"Greenheck ESJ\/EDJ Series Stationary J Blade Louver","description":"\u003cp\u003eThe Greenheck ESJ\/EDJ Series is a stationary J-blade louver with a 4-inch depth profile, engineered for weather-resistant air intake and exhaust in commercial and industrial building applications. Available in ESJ-401 and EDJ-401 configurations to suit specific installation requirements.\u003c\/p\u003e\u003cp\u003eThe J-blade design provides effective rain defense while maintaining strong free area performance for reliable airflow in demanding ventilation specifications. Durable construction and low-maintenance operation make the ESJ\/EDJ Series a dependable specification for wall and rooftop installations across a wide range of commercial HVAC applications.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring dependable stationary J-blade louver ventilation with proven Greenheck quality.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612404015380,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/ESD-403_Cutaway-removebg-preview_0ac6af2f-aca2-497b-9d21-2769d2578a08.png?v=1781199962"},{"product_id":"greenheck-ead-series-operable-drainable-blade-louver","title":"Greenheck EAD Series Operable Drainable Blade Louver","description":"\u003cp\u003eThe Greenheck EAD Series is an operable drainable blade louver engineered for controlled air intake and exhaust in commercial and industrial building applications. Available in 6-inch depth (EAD-635) and 4-inch depth (EAD-401) profiles to suit a wide range of wall and rooftop installation requirements.\u003c\/p\u003e\u003cp\u003eThe operable blade design allows blades to open and close on demand, providing active airflow control while the drainable blade geometry effectively sheds water and debris when open. Durable construction and dependable operation make the EAD Series a reliable specification for HVAC systems requiring active ventilation management and superior weather protection.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring operable drainable blade louver ventilation with proven Greenheck quality.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612404637972,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/EAD-635_Cutaway_1.png?v=1781200617"},{"product_id":"greenheck-fsd-series-combination-fire-smoke-damper","title":"Greenheck FSD Series Combination Fire Smoke Damper","description":"\u003cp\u003eThe Greenheck FSD Series is a combination fire and smoke damper engineered to restrict the spread of fire and smoke through HVAC ductwork in commercial and institutional building applications. Available in FSD-211 and FSD-212 configurations to meet specific installation and code requirements.\u003c\/p\u003e\u003cp\u003eDesigned to meet UL 555 and UL 555S requirements, the FSD Series provides both fire-rated closure and smoke control in a single unit, simplifying installation and code compliance. A robust actuator and blade assembly closes automatically upon detection of fire or smoke, helping protect building occupants and limit property damage in life-safety critical HVAC systems.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring UL-listed combination fire and smoke damper protection in HVAC duct penetrations through rated walls and floors.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612406112532,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/FSD-211_External_Actuator_Honeywell-removebg-preview.png?v=1781201431"},{"product_id":"greenheck-ofsd-series-out-of-wall-combination-fire-smoke-damper","title":"Greenheck OFSD Series Out of Wall Combination Fire Smoke Damper","description":"\u003cp\u003eThe Greenheck OFSD Series is an out-of-wall combination fire and smoke damper engineered to restrict the spread of fire and smoke through HVAC ductwork where the damper is mounted outside the rated wall assembly. Available in OFSD-211 and OFSD-311 configurations for applications where in-wall installation is not feasible.\u003c\/p\u003e\u003cp\u003eDesigned to meet UL 555 and UL 555S requirements, the OFSD Series provides both fire-rated closure and smoke control in a single unit. A robust actuator and blade assembly closes automatically upon detection of fire or smoke, offering flexible installation options while maintaining life-safety performance in commercial and institutional HVAC systems.\u003c\/p\u003e\u003cp\u003eIdeal for commercial, institutional, and industrial buildings requiring UL-listed out-of-wall combination fire and smoke damper protection where standard in-wall installation is not possible.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612410503444,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/OFSD-211-removebg-preview.png?v=1781201946"},{"product_id":"greenheck-crd-series-ceiling-radiation-damper","title":"Greenheck CRD Series Ceiling Radiation Damper","description":"\u003cp\u003eThe Greenheck CRD Series is a ceiling radiation damper engineered to prevent the passage of heat through ceiling membrane penetrations in fire-rated floor\/ceiling and roof\/ceiling assemblies. Available in standard (CRD-1) and wood truss (CRD-1WT) configurations to suit a wide range of residential and commercial ceiling applications.\u003c\/p\u003e\u003cp\u003eTested and listed to UL 555C, the CRD Series closes automatically when exposed to elevated temperatures to maintain the fire rating of the ceiling assembly. The CRD-1WT is specifically designed for compatibility with wood truss construction, while the CRD-1 suits standard commercial and residential ceiling installations. Both models feature durable, easy-to-install designs for HVAC diffuser and grille penetrations.\u003c\/p\u003e\u003cp\u003eIdeal for residential, commercial, and institutional ceiling assemblies requiring UL 555C-listed ceiling radiation damper protection at HVAC penetrations through fire-rated ceilings.\u003c\/p\u003e","brand":"Greenheck","offers":[{"title":"Default Title","offer_id":53612411191572,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/0643\/6884\/files\/CRD-1WT_Cutaway-removebg-preview.png?v=1781203889"}],"url":"https:\/\/lkmetal.com\/collections\/greenheck-dampers-and-louvers.oembed","provider":"LK Metal Products","version":"1.0","type":"link"}