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www.reference.com/article/type-refrigerant-used-air-conditioners-c855594af1e05960

The most commonly used refrigerant in air conditioners is R-22, or Freon, as of 2015. Freon is being phased out from use due to the harmful effects on the environment it creates and should be phased out completely by 2020, according to the U.S. EPA.

www.reference.com/article/different-types-air-conditioning-units-7a1887f5861ed0c8

There are several types of air conditioners, including self-contained window units, portable air conditioners with window exhaust kits, split central air conditioning systems and split ductless air conditioners. In addition, there are reversible air conditioners called ...

www.reference.com/article/types-air-conditioning-units-homes-849d09878500ccef

The four main types of air conditioning units for homes are split systems, heat pumps, central air conditioners and ductless mini-split systems. Each type has its own advantages, and the right choice for homeowners depends on the size of the home and whether the home ha...

www.reference.com/article/air-conditioning-work-4450a7469e20bd10

Air conditioners work by transferring heat energy from inside the home to the exterior. Liquid refrigerant absorbs heat from the home, becomes a gas, and travels to the outside. A compressor and condenser then converts it back to a liquid, and it releases the energy, th...

www.reference.com/article/different-types-window-air-conditioning-units-9b056ec48268cca4

Window air conditioning units only come in one type, called a unitary system; however, they do come in many output sizes, ranging from 5,000 to 28,500 Btus. Unitary systems have all air conditioning parts, including compressor, condenser, coils and evaporator, in one un...

www.reference.com/article/types-air-conditioner-refrigerant-big-lots-sell-b1522a1fe6cad50d

Air conditioner refrigerants for automotive or residential use are not available at Big Lots' online store, as of August 25, 2015. However, Big Lots is a large retailer of closeout items, so its inventory changes regularly. Other physical Big Lots stores may carry diffe...

www.reference.com/article/air-conditioning-products-85ee2ed3e746fa43

The first steps a buyer takes to find air conditioning products are to understand what he needs and find stores that offer the products. Some of the stores that offer air conditioning products as of 2015 include ACPShutters.com, Airedale.com and Daikin.com. These websit...