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RDIF - Commercial Insert Duct Heater
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Certified for use in ordinary (nonclassified) locations
Designed for use in commercial comfort heating applications
Finned tubular element increases heat transfer surface area resulting in lower operating temperature
Primary and secondary cutouts for overheat protection are standard on all models
The Ruffneck™ RDIF Commercial Insert Duct Heater with finned tubular (Calrod® type*) elements is designed for use in comfort heating applications, such as make-up air heating, air pre-heating, air handling equipment, fan coils, terminal reheating, multi-zone reheating, heat pump auxiliary systems and return air heating.
The finned tubular elements are constructed using a steel tube with a corrugated steel fin wrapped around it and brazed together, which increases the heat transfer surface of the element resulting in a lower operating temperature than the non-finned tubular element designs.