ASL Solutions Dog House Floor HeatersAdd extra warmth and comfort to your dog's ASL Solutions DP Hunter Dog House or Dog Palace this winter with our floor Heater. The heater is specifically designed to fit so the electrical cord exits the rear of the house and keeps the dog from tripping over the cord. Recommended use when sustained outdoor temperatures are below 20 F. Built in thermostat and electrical fuse provide a safe low temperature. UL/ROHS electrical components. Provides comfortable warmth for pets outdoors. Can also be used for kennels, shelters, garages, and other outdoor environments. Be sure to choose the correct size to fit your ASL Solutions Dog Palace or DP Hunter Dog House. Small: 13 L X 18 W X 0.75 H - Fits DP Hunter Dog HouseLarge: 18 L X 18 W X 0.75 H - Fits ASL Solutions Dog Palace.