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  2. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

  3. Sheet Metal and Air Conditioning Contractors' National ...

    en.wikipedia.org/wiki/Sheet_Metal_and_Air...

    The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA; pronounced 'Smack'-'Nah') is an international trade association with more than 4,500 contributing contractor members [1] in 103 chapters [2] throughout the United States, Canada, Australia and Brazil.

  4. J.C. Cannistraro - Wikipedia

    en.wikipedia.org/wiki/J.C._Cannistraro

    J.C. Cannistraro, LLC (commonly referred to as Cannistraro) is a privately held mechanical construction firm headquartered in Watertown, Massachusetts.The company provides HVAC, fire Protection and facilities maintenance services for large mechanical plants at hospitals, universities, laboratories, and many other facilities.

  5. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    Sheet metal worker, also known as a Mechanical Worker, A person who installs Heating Ventilation and Air Conditioning systems (HVAC), duct work, and exhaust systems for kitchens, bathrooms, laundry rooms, furnaces, etc. They also install gas lines and gas piping to a variety of appliances in homes and different types of businesses.

  6. CaptiveAire Systems - Wikipedia

    en.wikipedia.org/wiki/CaptiveAire_Systems

    In 1978, Ben Maynard, James’ father, suggested to Luddy that he open a sheet metal shop to manufacture ventilation hoods and integrate the fire system. Sales reached one million in 1979. Sales reached one million in 1979.

  7. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    The current industry minimum SEER rating is 14 SEER. Engineers have pointed out some areas where efficiency of the existing hardware could be improved. For example, the fan blades used to move the air are usually stamped from sheet metal, an economical method of manufacture, but as a result they are not aerodynamically efficient.