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  2. Heating, ventilation, and air conditioning - Wikipedia

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

    The three major functions of heating, ventilation, and air conditioning are interrelated, especially with the need to provide thermal comfort and acceptable indoor air quality within reasonable installation, operation, and maintenance costs. HVAC systems can be used in both domestic and commercial environments.

  3. 432 Park Avenue - Wikipedia

    en.wikipedia.org/wiki/432_Park_Avenue

    The smallest unit is a 351-square-foot (32.6 m 2) studio, while the largest unit is the 8,255-square-foot (766.9 m 2), six-bedroom, seven-bath apartment on floor 96, with its own library. [38] A sample medium-sized unit, #35B, covers 4,000 square feet (370 m 2 ) with three bedrooms and four-and-a-half baths, facing south and west with views of ...

  4. 111 West 57th Street - Wikipedia

    en.wikipedia.org/wiki/111_West_57th_Street

    They are reinforced with 5,500,000 square feet (510,000 m 2) of rebar and welded plates. [24] [37] [44] The floors are also supported by additional beams at three-story intervals, as well as four outrigger walls on the mechanical floors and 6-foot-wide (1.8 m) beams on the southern side of each floor. [24]

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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!

  6. Split-level home - Wikipedia

    en.wikipedia.org/wiki/Split-level_home

    This style of house is also known as a "split foyer". This is a two-story house that has a small entrance foyer with stairs that "split"—part of a flight of stairs go up (usually to the living room, kitchen, and bedrooms) and part of a flight of stairs go down (usually to a family room and garage/storage area). [3]

  7. Passive house - Wikipedia

    en.wikipedia.org/wiki/Passive_house

    The passive house standards in Europe set a space heating and cooling energy demand of 15 kWh/m 2 (4,750 BTU/sq ft) per year, and 10 W/m 2 (3.2 Btu/h/sq ft) peak demand. In addition, the total energy to be used in the building operations including heating, cooling, lighting, equipment, hot water, plug loads, etc. is limited to 120 kWh/m 2 ...

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