Shop the $400 Costway 6000BTU 3-in-1 Portable Air Conditioner at Walmart for only $270. Skip to main content. ... even if you don't have a built-in unit in your apartment.

In the context of air conditioners, “ton” doesn’t mean how heavy the unit is — it refers to the amount of heat the AC can remove from a room in an hour. A 1-ton AC can cool 12,000 BTU/hour ...

We also include information on what to consider before you buy a unit. The Best Air Conditioners. Best Overall Window: Frigidaire Gallery U-Shape Window Air Conditioner; ...