Máy sưới khí ống gió Duct Heater máy sưởi khí ống gió, RDFT – Commercial Flanged Duct Heater– The Ruffneck™ RDFT Commercial Flanged Duct Heater with non-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, …








