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  2. Heating, ventilation, and air conditioning - Wikipedia

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

    Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

  3. 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] The company offers a warranty of up to ten years [3]

  4. 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. [61]

  5. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    Evaporative air conditioning is also popular and well-suited to the southern (temperate) part of Australia. In dry, arid climates, the installation and operating cost of an evaporative cooler can be much lower than that of refrigerative air conditioning, often by 80% or so.

  6. Packaged terminal air conditioner - Wikipedia

    en.wikipedia.org/wiki/Packaged_terminal_air...

    Packaged terminal air conditioner installed in a residential apartment. A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in ...

  7. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    The Alliance for CO 2 Solutions claims, however that the initial costs of CO 2 systems will be around €5 higher than drop-in solutions and that over a car's life cycle, CO 2 air conditioning systems will be more cost-efficient than any currently used or proposed new chemical blends.

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