Wal-Mart, Overstock, Amazon.com, eBay and Used AC Warehouse all sell refurbished AC units. Wal-Mart, Amazon.com and Overstock offer only refurbished portable AC units and those for windows. Used AC Warehouse offers all o... More »

www.reference.com Home & Garden Heating & Cooling

The top window air conditioner, according to ApartmentTherapy.com, is the Frigidaire FRA086AT7, as of 2015. Reviewers there scored it very highly for efficiency, cooling power, ease of use and price. More »

www.reference.com Home & Garden Heating & Cooling

To install a window AC, open the bottom sash fully, balance the unit in the window with the bottom flange against the outside of the frame, close the sash, lock the sash in place, and expand the wings. Add insulation and... More »

www.reference.com Home & Garden Heating & Cooling

Yes, as of 2015, window air conditioning units can be purchased online from home improvement retailers such as Lowe's and The Home Depot. Retailers offer a variety of shipping options, including in-store pickup and direc... More »

www.reference.com Home & Garden Heating & Cooling

Carrier manufactures 13 different models of split system air conditioner units as of 2015. Carrier offers three different air conditioner product lines: the Infinity, Performance and Comfort Series. More »

www.reference.com Home & Garden Heating & Cooling

Recently-built Goodman air conditioning units are considered highly reliable, according to heating and air conditioning review website WebHVAC. However, the long-term reliability of these units is unknown. More »

Used air conditioner units can be purchased online from stores such as the Used A/C Warehouse and Budget Heating & Air Conditioning, as well as from equipment auction sites such as Bid-on-Equipment. General auction sites... More »

www.reference.com Home & Garden Heating & Cooling