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  2. The 6 best-looking window air conditioners that ... - AOL

    www.aol.com/best-looking-window-air-conditioners...

    The 6 best-looking window air conditioners that actually look like home decor — Windmill, Frigidaire, Midea and more Moriba Cummings Updated June 16, 2023 at 8:01 AM

  3. The Best Window Air Conditioners, According to ... - AOL

    www.aol.com/best-window-air-conditioners...

    Friedrich Chill Premier 10000 BTU Smart Window Air Conditioner CCF10A10A. Best for: Large rooms This model can cool a 400- to 500-square-foot space with ease thanks to its 10,000 BTUs and eight ...

  4. Lennox Merit Series air conditioner - Wikipedia

    en.wikipedia.org/wiki/Lennox_Merit_Series_air...

    The Merit series is the lowest cost Lennox air conditioner, and there are 4 models of Single-stage with a 13, 14, 15 or 16 Seasonal energy efficiency ratio (SEER) rating. [2] The units are also available with ratings from 1.4 tons to 5 tons. [ 1 ]

  5. Sound transmission class - Wikipedia

    en.wikipedia.org/wiki/Sound_transmission_class

    The STC is useful for evaluating annoyance due to speech sounds, but not music or machinery noise as these sources contain more low frequency energy than speech. [ 1 ] There are many ways to improve the sound transmission class of a partition, though the two most basic principles are adding mass and increasing the overall thickness.

  6. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    Less work is required to move heat than for conversion into heat, and because of this, heat pumps, air conditioners and refrigeration systems can have a coefficient of performance greater than one. The COP is highly dependent on operating conditions, especially absolute temperature and relative temperature between sink and system, and is often ...

  7. Power conditioner - Wikipedia

    en.wikipedia.org/wiki/Power_conditioner

    An AC power conditioner is the typical power conditioner that provides "clean" AC power to sensitive electrical equipment. Usually this is used for home or office applications and commonly provides surge protection as well as noise filtering.

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