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  2. Minimum efficiency reporting value - Wikipedia

    en.wikipedia.org/wiki/Minimum_Efficiency...

    Minimum Efficiency Reporting Value, commonly known as MERV, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers to report the effectiveness of air filters in more detail than other ratings.

  3. Trane - Wikipedia

    en.wikipedia.org/wiki/Trane

    He designed a new type of low-pressure steam heating system, Trane vapor heating. Reuben Trane, James' son, earned a mechanical engineering degree (B. S. 1910) at the University of Wisconsin–Madison and joined his father's plumbing firm. [1] In 1913, James and Reuben, along with Stella Jackson (formerly Trane), incorporated The Trane Company.

  4. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning, Heating, and Refrigeration Institute, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]

  5. Lennox International - Wikipedia

    en.wikipedia.org/wiki/Lennox_International

    Lennox International Inc. is an American provider of climate control products for the heating, ventilation, and air conditioning (HVAC) and refrigeration markets. [1] Based in Richardson, Texas , the company is 9.8% owned by John W. Norris, III, a descendant of DW Norris , who acquired the company in 1904.

  6. Contractor ratings - Wikipedia

    en.wikipedia.org/wiki/Contractor_ratings

    Contractor rating systems, also known as contractor prequalifications, are one of the larger cost-saving practices available and more routinely applied by governmental organizations as a means of avoiding the high cost and inflated pricing that results from reduced competition on public work by using bonding and surety to guarantee performance of public work.

  7. Building automation - Wikipedia

    en.wikipedia.org/wiki/Building_automation

    Building automation (BAS), also known as building management system (BMS) or building energy management system (BEMS), is the automatic centralized control of a building's HVAC (heating, ventilation and air conditioning), electrical, lighting, shading, access control, security systems, and other interrelated systems. Some objectives of building ...