Difficulty: Moderately Easy
Step1
Face the doghouse south or southeast so the door is out of the winter winds' way. If possible, turn doghouse to face a garage or shed wall.
Step2
Place bedding inside the doghouse. Straw or wood shavings work well; these materials retain heat and evaporate moisture. Old blankets or sheets, contrary to popular belief, actually mat down too much over time and provide less warmth than you might think.
Step3
Purchase a heated water dish to place inside the doghouse, available at most retail pet stores. Don't forget about the dog's food and water when winterizing the doghouse. A heated water dish can keep the water from freezing.
Step4
Check the roof of the doghouse for leaks or holes. Make necessary repairs. If the dog spends any time on the roof, there could be some damage that allows snow or rain to leak into the doghouse.
Step5
Install a doghouse heater, available at pet retail stores or online retailers. If this is too expensive, winterize the doghouse by insulating the walls or buying a heated dog mat.