The heating element is low power density, less than 10 watts per square inch, to reduce dirt in sticky products. Dry well design elements can be removed for maintenance without interrupting your process, which is an obvious benefit. The terminal housing is weatherproof standard and can also be used in hazardous environments of selected sizes. Heaters come with ETL list names and controls are UL list names to ensure product quality as well as to promote electrical inspection and insurability.