Description: Greenheck’s HBT-221 rectangular bubble-tight damper is now available in larger sizes up to 48x52 inches in a single section. This allows larger openings to be filled with one ...

Description: This product, combining the company’s ceiling exhaust fan and ceiling radiation damper at the factory into one unit, is shipped ready to install. The UL classified ceiling radiation ...

Bathroom exhaust fans are the most common way to properly ventilate and control moisture in residential bathrooms. Along with providing effective ventilation, bath fans with a ceiling radiation damper ...

KNOXVILLE, Tenn. (WATE) — Greenheck Group plans to invest $2 million in an engineering and manufacturing program with Carter High School. The company also plans to break ground on its new $300 million ...

Greenheck has announced upgrades, expansions and renovations will take place during the next two years resulting in a $19 million investment locally. Construction will begin in August on a ...

A ventilation systems manufacturer that broke ground Thursday on a Tulsa campus wants to create between 800 to 900 jobs over the next 10 years, a company spokeswoman said Thursday. Wisconsin-based ...

What is a damper, and where is it on the engine? It is the barbell-looking “weight” on the front of the crankshaft near the front of the engine. There is a free-floating ring of steel (inertia ring) ...