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2. Heating, ventilation, and air conditioning - Wikipedia

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

   Warm air systems distribute the heated air through ductwork systems of supply and return air through metal or fiberglass ducts. Many systems use the same ducts to distribute air cooled by an evaporator coil for air conditioning. The air supply is normally filtered through air filters [dubious – discuss] to remove dust and pollen particles. [15]

3. National Register of Historic Places listings in Southington ...

   en.wikipedia.org/wiki/National_Register_of...

   Location of Southington in Connecticut. This is a list of the National Register of Historic Places listings in Southington, Connecticut. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Southington, Connecticut, United States. The locations of National Register properties and ...

4. Process duct work - Wikipedia

   en.wikipedia.org/wiki/Process_Duct_Work

   Round ductwork allowable compressive stress is = 662 /(d/t) +339 * Fy (tubular steel structures, chapter 2). Other reference use similar equations. Ductwork typical cement plant pressure drops are: 60% to 80% of high temperature process duct work pressure drop occurs in the process equipment, baghouses, mills and cyclones. Since motor 1 (one ...

5. Southington, CT Weather - Hourly Forecasts and Local ... - AOL

   www.aol.com/weather/forecast/us/southington-12760436

   Get the Southington, CT local weather forecast by the hour and the next 10 days.

6. 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 ...

7. Smoke exhaust ductwork - Wikipedia

   en.wikipedia.org/wiki/Smoke_exhaust_ductwork

   Smoke exhaust ductwork, in Europe, is typically protected via passive fire protection means, subject to fire testing (typically to NBN EN 1366-8 [1]) and listing and approval use and compliance. It is used to remove smoke from buildings , ships or offshore structures to enable emergency evacuation as well as improved firefighting.