The Duct Heater is an open-coil or tubular element heating assembly designed for installation inside rectangular or circular HVAC ductwork to provide on-demand air heating. Available in horizontal and vertical flow configurations, it delivers rapid temperature rise for make-up air systems, ventilation air preheating, dehumidification reheat coils, and process air warming. Widely applied in commercial buildings, greenhouses, paint booths, drying rooms, and food processing air handling units, our duct heaters feature even airflow distribution, low pressure drop, and multiple safety interlocks.

Typical Specifications: Power: 5kW–500kW; Air velocity: 2–15 m/s; Max outlet temp: 250°C (standard), 450°C (high-temp); Duct size: Custom to fit; Control stages: 1–12 stages; Element type: Open coil / Tubular finned; Safety: Airflow switch, over-temp limit, fuse protection.