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  2. National Register of Historic Places listings in Columbus, Ohio

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

    This is a list of the National Register of Historic Places entries in Columbus, Ohio, United States.The National Register is a federal register for buildings, structures, and sites of historic significance.

  3. Sleeve (construction) - Wikipedia

    en.wikipedia.org/wiki/Sleeve_(construction)

    For example, a 4" pipe, with 1" of thermal insulation makes a 6" penetrant (1" pipe covering on each side of the pipe), plus two pipe sizes = an 8" sleeve, creating a 1" annulus. In case of insulated piping, the size of the insulation must be taken into account for the intended firestop certification listing .

  4. Merchant Building - Wikipedia

    en.wikipedia.org/wiki/Merchant_Building

    The building will replace a surface lot used by North Market. The one-acre (0.40 ha) site [1] is in the North Market Historic District, and is the historical site of North Market, the city's oldest surviving marketplace. The market currently occupies an adjacent building, with the project site utilized as a 130-space surface parking lot. [1]

  5. Liebert Corporation - Wikipedia

    en.wikipedia.org/wiki/Liebert_Corporation

    Liebert Corporation office in Columbus, Ohio. Liebert Corporation, headquartered in Westerville, Ohio, produced electric power systems, precision cooling equipment, server racks and integrated cabinets, and related infrastructure management and services.

  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. 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.

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Old Oaks Historic District - Wikipedia

    en.wikipedia.org/wiki/Old_Oaks_Historic_District

    Old Oaks is a small neighborhood approximately one mile east of, and just south of downtown. The community is bounded by Mooberry Street to the north, East Livingston Avenue to the south, South Ohio Avenue to the west, and Kimball Place to the east.

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