Greenheck's Marty Gissel, segment manager in commercial dampers, walks us through the differences between dampers. 

Greenheck's newest additions to its automatic balancing damper line.

This year’s Top 10 states for LEED, released by the U.S. Green Building Council (USGBC), include more than 468 million gross square-feet of LEED-certified space. LEED-certified buildings use less energy, water, reduce carbon emissions and save money for families, businesses and the community.

Ruskin has introduced the BTR-250 heavy-duty isolation damper, designed to provide bubble-tight airflow leakage performance in systems with up to 10 in. wg pressure. 

Life-safety dampers are critical fire-protection features of buildings. By protecting duct and air-transfer-opening penetrations through fire- and smoke-rated construction, they help to contain fire and smoke within the area of origin. 

Greenheck will invest nearly $60 million to expand production of its Dedicated Outdoor Air Systems (DOAS), Tempered Air Products (TAP) and Architectural Products at its manufacturing facilities in Shelby, North Carolina.  

Pre-engineered rooftop ventilator models RV-110 and RVE-180 with energy recovery offer capacities up to 18,000 cfm, up to 70 tons of packaged cooling and 1200 mbh indirect gas-fired heating. 

In all, Kaempf & Harris Sheet Metal utilized 600,000 pounds of galvanized ductwork to construct a commercial-grade HVAC system for the 270,000-square-foot Frederick High School in Frederick, Maryland. 

The Ruskin ADC105 addressable damper controller meets NFPA 80 and 105 life safety remote damper testing requirements. 

The TED50V features Ruskiprene blade and jamb seal material. The TED50VXT is designed to protect against extreme cold temperature conditions by using mechanically-fastened extruded silicone on the blade seals and ribbed-extruded silicone on the jamb seals.