RENTAL OF PORTABLE AIR CONDITIONING Our portable Spot Coolers are easy to install and operate. All AC units have a hot exhaust hose that must be hooked up to a window. All units do include an 8 ft hose and a window kit for easy installation. All units will cool the area according to the heat load of the space and will adapt accordingly depending on size (sqft). In most room conditions, the AC will evaporate any excess water in the unit, so there’s no need to drain it.