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Open coil elements are the most efficient type of electric heating element and the most economically feasible for most heating applications. Used predominantly in the duct heating industry, open coil heater elements have open circuits that heat air directly from the suspended resistive coils.

These industrial heating elements have fast heat up times that improve efficiency and have been designed for low maintenance and easily, inexpensive replacement parts.

Wattco​​ open coil elements

Open coil heating elements from Wattco are typically made for duct process heating, forced air & ovens and for pipe heating applications. Open coil heater elements are made to fit inside standard 2’’ or 3’’ schedule 40 NPS pipe.

Open coil heaters are used in tank, pipe heating, and/or metal tubing. A minimum clearance of 1/8’’ is required between the ceramic and the inside wall of the tube. An open coil element will provide excellent and uniform heat distribution over a large surface area.

Open coil heater elements are an indirect industrial heating solution to decrease watt density requirements or the heat fluxes on the surface area of the pipe connected to the heated section and prevent heat-sensitive materials from coking or breaking down.

Open coil elements are versatile, and used in industrial applications for efficient heat transfer. They consist of resistance wire wound into coils to heat air or gases in devices like forced-air duct heaters, ovens, and dryers. Their design provides quick heat response and even distribution, essential for processes requiring quick temperature adjustments.

These elements are highly used in space heating, industrial furnaces, and packaging equipment. Its features are adaptability, durability, cost-effectiveness, easy replacement, and customization for various wattages and sizes.

Get a quote for an open coil element today. WATTCO also manufactures other industrial heating products such as infrared heaters, control panels, circulation heaters and more.