Industrial air duct heater

Short Description:

Duct heaters are ideal to warm low-pressure air flow via convection heating. For cold and humid environments, the air flowing temperature of the duct will gradually decrease across the duct wall. For this case, an air duct heater would be useful to supply the required heat in order to warm the building. A duct heater’s simple design and installation is the main feature for this product.

Product Detail

Product Tags


The electric heating tube adopts outer-wound corrugated stainless steel belt, which increases the heat dissipation area and greatly improves the heat exchange efficiency

The heater design is reasonable, the wind resistance is small, the heating is uniform, and there is no high and low temperature dead angle

Double protection, good safety performance. A thermostat and a fuse are installed on the heater, which can be used to control the air temperature of the air duct to work under the condition of over-temperature and seamless, ensuring foolproof

Can heat the air to a very high temperature, up to 450 degrees Celsius, the shell temperature is only about 50 degrees Celsius

High efficiency, up to 0.9 or more

The heating and cooling rate is fast, the adjustment is fast and stable, and the controlled air temperature will not lead and lag, which will cause the temperature control to float, which is very suitable for automatic temperature control

It has good mechanical properties. Because its heating element is made of special alloy material, it has better mechanical properties and strength than any heating element under the impact of high-pressure air flow. This is suitable for systems and systems that need to continuously heat the air for a long time. The accessory test is more advantageous

When it does not violate the operating regulations, it is durable and the service life can reach several decades

Clean air and small size


Air duct type electric heaters are used for industrial duct heaters, air conditioning duct heaters and air in various industries. By heating the air, the temperature of the output air is increased, and it is generally inserted in the transverse opening of the duct. According to the working temperature of the air duct, it is divided into low temperature, medium temperature and high temperature. According to the wind speed in the air duct, it is divided into low wind speed, medium wind speed and high wind speed.

Energy-saving duct heaters are mainly used to heat the required air flow from the initial temperature to the required air temperature, up to 850°C. It has been widely used in many scientific research and production laboratories such as aerospace, weapon industry, chemical industry and universities, etc. It is especially suitable for automatic temperature control and large flow high temperature combined system and accessory test.

The electric air heater has a wide range of use and can heat any gas. The hot air produced is dry and moisture-free, non-conductive, non-burning, non-explosive, non-chemically corrosive, non-polluting, safe and reliable, and the heated space heats up quickly ( Controllable)


1.Are you factory?
Yes, we are factory, all customers are more than welcome to visit our factory .

2.What are the available product certifications?
We have certifications such as: ATEX, CE, CNEX. IS014001, OHSAS18001,SIRA, DCI. Etc

3.How is air heater capacity calculated?

When Calculating Heater Capacity, Use the Maximum Outlet Temperature and the Lowest Air Velocity. For Close Grouping of Heaters, Use 80% of the Calculated Value. 0 100 200 300 400 500 600 700 Outlet Air Temperature (°F) When Calculating Heater Capacity, Use the Maximum Outlet Temperature and the Lowest Air Velocity.

4.How do I choose a duct heater?
Important parameters to consider when specifying duct heaters are maximum operating temperature, heating capacity and maximum air flow. Other considerations include type of heating element, dimensions and various features.

5.How does an electric duct heater work?
Electric duct heater which makes use of electricity to warm the air that passes through a duct. It consists of a heating element which converts the electricity into heat through resistance. ... This results to efficient heat transfer without wasting energy as the room or space is only heated for the required times.

Production Process


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Industrial electric heater (1)

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