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  2. Room air distribution - Wikipedia

    en.wikipedia.org/wiki/Room_air_distribution

    Displacement ventilation systems supply air directly to the occupied zone.The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditorium and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.

  3. 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 ...

  4. Heating, ventilation, and air conditioning - Wikipedia

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

    Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space.

  5. Home inspection checklist for buyers: What to know - AOL

    www.aol.com/finance/home-inspection-checklist...

    Ductwork Cabinets and countertops ... ventilation and air conditioning), including thermostats, vents, distribution systems, access panels, insulation and vapor retarders ... 15 of the coziest ...

  6. F.W. Webb Company - Wikipedia

    en.wikipedia.org/wiki/F.W._Webb_Company

    Core markets include plumbing, heating, HVAC, commercial refrigeration, and PVF (pipe valves fittings). The company also offers building and process controls, propane gas equipment and parts, ductwork, water systems, commercial and industrial pumps, fire protection and fabrication, thermoplastic piping, and high purity (sanitary) process ...

  7. Ferguson Enterprises - Wikipedia

    en.wikipedia.org/wiki/Ferguson_Enterprises

    Ferguson Enterprises Inc., headquartered in Newport News, Virginia and organized in Delaware, is the largest U.S. distributor of plumbing, heating, ventilation and air conditioning (HVAC), appliances, and lighting to pipes, valves and fittings (PVF), and water and wastewater products. [1]