Temperature controls for enclosures shield electrical components from damage due to extreme temperatures. Heaters for electrical enclosures protect components from damage due to freezing. Air conditioners and coolers for electrical enclosures shield electrical components inside from excessive heat. Thermostats for electrical enclosures measure temperature to prevent freezing or overheating. Louver kits for electrical enclosures help control internal temperatures and moisture. Replacement filters for electrical enclosures permit airflow through the enclosure while keeping out dust and debris.