Open Coil Air Heaters are coiled resistance wire fixed onto a supporting steel or aluminum frame with ceramic insulators. The selection of the correct wire gauge, wire type and coil diameter requires quite some experience. There are standard elements available on the market, but quite often they...
Jaye Heater Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of open coil air heaters in China, also supports custom service. Welcome to wholesale high quality open coil air heaters at competitive price from our factory.
Open Coil Air Heaters are coiled resistance wire fixed onto a supporting steel or aluminum frame with ceramic insulators. The selection of the correct wire gauge, wire type and coil diameter requires quite some experience. There are standard elements available on the market, but quite often they need to be custom built. The Open Coil Air Heater work best below air velocities of 80 FPM. Higher air velocities could cause the coils to touch each other and short out. For higher velocities, select a tubular air heater or finned tubular heaters.
| Material | Ni-Cr Wire |
| Heater Diameter | 6.5mm |
| Heater Material | SUS304 or Customed |
| Voltage/Wattage | 220V 2000W |
1. Fast Thermal Response
Open coil heaters have extremely low thermal mass. There's no sheath to heat up, no insulation to slow conduction. The coil reaches operating temperature in seconds, not minutes. This makes open coil heaters ideal for applications requiring rapid heat-up and cool-down cycles.
2. Low Pressure Drop
Because the coil occupies very little cross-sectional area, open coil heaters create minimal resistance to airflow. This means your blower or fan doesn't have to work as hard, saving energy and reducing operating costs.
3. High Efficiency
Direct heat transfer – no sheath means no thermal barrier. Heat goes straight from the coil into the airstream. Open coil elements are widely considered the most efficient type of electric heating element available.
Open coil air heaters are the preferred choice wherever fast, efficient air heating is needed in clean, controlled environments:
HVAC Systems – Duct heaters for commercial and industrial comfort heating; air handling units
Industrial Ovens & Dryers – Curing coatings, drying substrates, baking food products, and heat-treating
Process Air Heating – Preheating combustion air, exhaust gases, or industrial airflow
Whether you need a single custom open coil heater for a laboratory oven or a large-scale duct heating system for an industrial plant, JAYE can design and build the right solution for you.
Tell us about your application – airflow rate, temperature requirements, duct dimensions, and power needs – and we'll recommend the optimal open coil air heater.
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