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  2. No, You Don't Need to Clean Your Air Ducts Every Year ... - AOL

    www.aol.com/no-dont-clean-air-ducts-110500245.html

    And, cleaning cooling coils and heat exchangers can boost your system's efficiency (but not cleaning ducts alone). Related: The 6 Best Furnace Filters of 2024 How to Know If You Should Clean Your ...

  3. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    The heat pump itself can be improved by increasing the size of the internal heat exchangers, which in turn increases the efficiency (and the cost) relative to the power of the compressor, and also by reducing the system's internal temperature gap over the compressor. Obviously, this latter measure makes some heat pumps unsuitable to produce ...

  4. List of tallest buildings in Calgary - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_buildings...

    This is a list of tallest buildings in Calgary, Alberta, namely buildings that are at least 400 feet (120 meters) tall. Calgary is both the largest city and largest metropolitan area in the Canadian province of Alberta , with a municipal population of 1,267,344 [ 1 ] as of April 1, 2018, and a metropolitan population of 1,469,300 [ 2 ] as of ...

  5. 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.

  6. AltaGas - Wikipedia

    en.wikipedia.org/wiki/AltaGas

    AltaGas is a North American energy infrastructure company based in Calgary, Alberta. It links natural gas liquids (NGLs) and natural gas to both Canadian and global markets. [ 2 ] The company operates in four business segments: utilities, midstream, power and corporate.

  7. Scotia Place - Wikipedia

    en.wikipedia.org/wiki/Scotia_Place

    That proposal included two buildings: a 19,000–20,000 seat events centre [5] to serve as the new home arena of two hockey clubs, the National Hockey League's Calgary Flames, and the Calgary Hitmen of the Western Hockey League, [6] as well as the Calgary Roughnecks lacrosse team; and a 40,000-seat football stadium and fieldhouse [5] for the ...

  8. Calgary Tower - Wikipedia

    en.wikipedia.org/wiki/Calgary_Tower

    The Calgary Tower is a 190.8-metre (626 ft) free standing observation tower in the downtown core of Calgary, Alberta, Canada. Originally called the Husky Tower , it was conceived as a joint venture between Marathon Realty Company Limited and Husky Oil as part of an urban renewal plan and to celebrate Canada's centennial of 1967.

  9. 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 ...