Beautiful and durable, the ASL Solutions Dog Palace Insulated Dog House features up to 4 inches of real foam (Styro/EPS) insulation in each panel for optimum comfort and for a healthy temperature. This special insulated dog house is intended to keep your precious pooch cooler during hot and warm weather, while also helping to keep your dog warmer during colder weather. This insulated outdoor dog house is as convenient as it is cozy and helps to keep in warmth better than most look-alike dog houses without insulation. Featuring a heater portal (allows for the heater's electrical cord to directly exit the rear of the house) that helps to keep the dog from tripping over the cord, this innovative dog house makes for an excellent home for practically any pampered pooch. Dog Palace Heaters sold separately.The ASL Solutions Dog Palace Insulated Dog House amenities include:Easy pass-through, self-closing door with window Raised floor that provides a dry and warm bedding area Sloped floor with drain hole that whisks liquid away from your pet's living area Self-storing window panels that easily reposition from winter's closed position to summer's cross-ventilation position without tools Durable plastic construction that cleans up easily with the water from your garden hose Removable bottom half door for initial training