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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. The Most Important Place You're Probably Forgetting To Dust - AOL

    www.aol.com/most-important-place-youre-probably...

    Despite the inaccessibility of all ductwork and air vents in your home and the challenge of cleaning them, it is essential to take steps to clean what you can easily access. “In addition to ...

  4. Plenum space - Wikipedia

    en.wikipedia.org/wiki/Plenum_space

    A non-plenum airspace can become a plenum airspace by accident if the ductwork is disconnected and not properly repaired and resealed. Ductwork disconnection can occur due to building damage such as earthquakes, aging, or adverse environment causing the metal to corrode and fall apart, or simply negligence on the part of building contractors ...

  5. Pressurisation ductwork - Wikipedia

    en.wikipedia.org/wiki/Pressurisation_ductwork

    Pressurisation ductwork (sheet metal) externally fireproofed with pressed vermiculite boards, stapled together. Pressurisation ductwork made of Durasteel. Pressurisation ductwork is a passive fire protection system. It is used to supply fresh air to any area of refuge, designated emergency evacuation or egress route.

  6. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    Both supply and exhaust happened through an unconditioned attic space, with exhaust air being extracted at ceiling height and air being supplied at floor level through a vertical duct. The device was found to provide sufficient ventilation air flow for a single family home and heat recovery with an efficiency around 40%.

  7. New Detroit high-rise opens doors with $4,000 monthly rent ...

    www.aol.com/detroit-high-rise-opens-doors...

    The model units on display Tuesday had an upscale urban loft feel with exposed ductwork and concrete ceilings, along with 10-foot floor-to-ceiling windows.