This Heated Kitty House is made with heavy denier nylon with a vinyl backing that makes this water resistant. This house comes with and accommodates a Lectro Soft Outdoor Heated Kitty Bed that uses only 20 watts. The roof hangs over the 2 doors to keep the cats warm, dry and safe. Includes removable door flaps for added protection. Easy to assemble with Velcro walls and a zippered roof. | K&H Pet Products Thermo Outdoor Heated Kitty House Barn in Red | Size Medium