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  2. Heating, ventilation, and air conditioning - Wikipedia

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

    Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality .

  3. International Comfort Products - Wikipedia

    en.wikipedia.org/wiki/International_Comfort_Products

    ICP is a Carrier subsidiary. ICP makes oil and gas furnaces, heat pumps, and central air-conditioning systems for residential and commercial customers. [1] It manufacturers, markets, and sells residential heating and cooling systems under the Arcoaire, Comfortmaker, Day & Night, Heil, KeepRite, Lincoln, and Tempstar brands; its commercial units, with up to 25 tons of cooling capacity, are sold ...

  4. Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania

    In Pittsburgh, tomato ketchup was improved by Henry John Heinz from 1876 to the early 20th century. Famous to a lesser extent than Heinz ketchup is the Pittsburgh's Primanti Brothers Restaurant sandwiches, pierogies, and city chicken. In northeastern Pennsylvania, Italian heritage has popularized a variety of pizza styles.

  5. 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 ...

  6. WINP-TV - Wikipedia

    en.wikipedia.org/wiki/WINP-TV

    WQEX went dark again in November 1961 but returned to the air over a year later, in January 1963, [6] after technical repairs were made. [10] For much of its early years, owing to its educational status and the first-generation UHF equipment it inherited from WENS, the station was plagued by a weak signal, operating at 171 kilowatts visual, and 34.2 kilowatts aural by 1971, [6] resulting in a ...

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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!

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