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  2. 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]

  3. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    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 in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [60]

  4. Mains electricity by country - Wikipedia

    en.wikipedia.org/wiki/Mains_electricity_by_country

    50 Hz. (1) Nominal grid voltage according to regulation is 230/400 V, [ 44] but in practice, equipment with 220/380 V is more commonly used. (2) Types C and F plugs are officially recognized by SNI 04-3892.1.1-2003. (3) British Type G sockets are common in Riau Islands due to their close proximity to Singapore.

  5. Is Central Air Worth the Cost? Plus, What You Can Do Instead

    www.aol.com/central-air-worth-cost-plus...

    Central AC doesn’t come cheap, either. The average cost of both the unit plus installation will range from between $5,000 up to a whopping $12,000, according to Adam Graham, a construction ...

  6. The best portable air conditioner - Engadget

    www.engadget.com/2019-06-08-the-best-portable...

    Read the full guide to portable air conditioners. If you don't have central air, and a window AC isn't an option, get the LG LP1419IVSM portable air conditioner—the quietest and most efficient ...

  7. Household Air Conditioning Unit Doubles As Water Heater

    techcrunch.com/2011/06/12/air-conditioning-water...

    At its peak, the ACWH can provide 18,000 BTU, or 1.5 tons of cooling using 1333 watts per hour. Heating water while cooling a building can help save energy, since the heat recovery process eases ...

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