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

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

    If central air isn’t affordable for your household you can opt for window air conditioning units, mini splits, or portable air conditioners instead. Central Air May Save Energy

  3. 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 ...

  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. Seasonal energy efficiency ratio - Wikipedia

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

    For example, there is little cost benefit in having a very high SEER air conditioning unit in Maine, a state in the northeast US. Starting January 1, 2015, split-system central air conditioners installed in the Southeastern Region of the United States of America must be at least 14 SEER. The Southeastern Region includes Alabama, Arkansas ...

  6. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...

  7. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    Less expensive to install and operate. Estimated cost for professional installation is about half or less that of central refrigerated air conditioning. [34] Estimated cost of operation is 1/8 that of refrigerated air conditioning. [35] No power spike when turned on due to lack of a compressor.

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