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ELEKHEAT
Industrial Electric Duct Heater Manufacturer
Custom electric duct heaters designed for industrial air heating, HVAC systems, drying equipment and process heating applications.
Custom Electric Duct Heater Solutions
ELEKHEAT designs and manufactures industrial electric duct heaters for OEM equipment manufacturers, engineering companies and industrial heating systems worldwide.
Reliable Air Heating Solutions For Industrial Applications
Our duct heaters are engineered according to airflow rate, temperature requirements, installation conditions and control requirements.
With more than 30 years of industrial heating experience, ELEKHEAT provides customized heating solutions including power, voltage, material selection, dimensions and control systems.
- Industrial HVAC air heating
- Drying equipment heating
- Process air heating
- OEM equipment integration
Types of Industrial Electric Duct Heaters
ELEKHEAT provides different duct heater designs according to installation requirements, airflow conditions and industrial applications.
Flanged Duct Heater
Designed for installation between duct sections or air handling equipment. Suitable for industrial ventilation systems and large air heating applications.
- Easy installation
- Strong mechanical structure
- Suitable for continuous operation
- Customized flange dimensions
Insert Type Duct Heater
Compact duct heating solution designed for direct installation inside air ducts, chambers and OEM equipment.
- Space-saving design
- Fast heating response
- Flexible installation
- OEM integration support
High Temperature Duct Heater
Designed for demanding industrial processes requiring higher air temperature and long-term stable operation.
- High temperature resistance
- Advanced alloy materials
- Industrial process heating
- Customized design available
Customized Design Parameters
Heating Power
1kW – 1000kW+ customized solutions available.
Material Selection
SS304, SS316, Incoloy and special alloys according to working environment.
Control System
Thermostat, PID controller, SCR power control and safety protection.
Why Choose ELEKHEAT Duct Heaters?
ELEKHEAT provides different duct heater designs according to installation requirements, airflow conditions and industrial applications.
30+ Years Experience
Since 1997, ELEKHEAT has focused on industrial heating element manufacturing and customized heating solutions.
Custom Engineering
Heating power, dimensions, materials and control systems can be customized according to customer requirements.
Reliable Quality Control
Every duct heater is tested through electrical inspection and performance verification before shipment.
Industrial Duct Heater Applications
Reliable electric air heating solutions for different industrial equipment and process systems.
HVAC & Air Handling Systems
Providing controlled heating for air handling units, ventilation systems and clean room environments.
Industrial Drying Equipment
Used for plastic drying machines, coating systems, printing equipment and industrial dryers.
Process Air Heating
Designed for chemical processing, manufacturing lines and industrial thermal processes.
OEM Equipment Integration
Customized duct heaters developed according to machine structure and operating requirements.
ELEKHEAT Duct Heater Application Cases
Reliable electric air heating solutions for different industrial equipment and process systems.
Assembly line drying
The assembly line drying equipment with 6 20KW heaters is relatively long, and 6 heaters are installed on it in sections. There is return air at the fan inlet to ensure that the overall assembly line temperature can be recycled and reused, without wasting waste heat, which is more energy-saving.
Assembly line drying
The assembly line drying equipment with 6 20KW heaters is relatively long, and 6 heaters are installed on it in sections. There is return air at the fan inlet to ensure that the overall assembly line temperature can be recycled and reused, without wasting waste heat, which is more energy-saving.
Roller sand drying
The drying equipment with 6 20KW heaters is relatively long, and 6 heaters are installed on it in sections. There is return air at the fan inlet to ensure that the temperature of the entire assembly line can be recycled and reused, without wasting waste heat, which is more energy-saving.
Sausage drying room
The drying room is 2.8*3.2*2.5 meters in size, and is equipped with a 15KW heater for constant temperature drying at 65 degrees. The temperature rises for about 30 minutes, and then the constant temperature is maintained for drying.
How Does An Electric Duct Heater Work?
Understanding the heating process helps engineers select the right air heating solution.
Electrical Energy Converted Into Heat Energy
An electric duct heater generates heat through resistance heating elements. When electric current passes through the resistance wire, heat is produced and transferred to the surrounding airflow.
Heating Process:
Electrical Energy → Resistance Heating Element → Heat Transfer → Heated Air Output
ELEKHEAT tubular heating elements use high purity magnesium oxide (MgO) insulation, providing excellent electrical insulation, thermal conductivity and long service life.
Electric Duct Heater Internal Structure
Engineered with reliable heating elements and industrial-grade materials for stable performance.
Heating Elements: These are responsible for generating heat, usually electric elements or other heat sources.
Airflow Chamber: The area where air passes through the heating elements and gets heated.
Fan or Blower: Helps circulate air through the heater and into the duct system.
Temperature Control: A thermostat or control system to regulate the temperature of the heated air.
Insulation: Keeps the heat inside the heater to improve efficiency.
Duct Connections: These connect the heater to the duct system for air distribution.
Safety Features: Built-in protections to prevent overheating or malfunctions.
Industrial Electric Duct Heater Specifications
ELEKHEAT provides standard and customized duct heater solutions according to different industrial heating requirements.
| Parameter | Specification |
|---|---|
| Product Type | Industrial Electric Duct Heater |
| Heating Power | 1kW – 1000kW+ Customized |
| Voltage | 220V / 380V / Customized Voltage |
| Frequency | 50Hz / 60Hz |
| Heating Element | Tubular Heating Element / Finned Tubular Heater |
| Sheath Material | SS304 / SS316 / Incoloy 800 |
| Insulation Material | High Purity Magnesium Oxide (MgO) |
| Temperature Control | Thermostat / PID Controller / SCR Control |
| Protection | Over Temperature Protection / Airflow Protection |
| Testing | Electrical Resistance Test / Insulation Test |
Electric Duct Heater Power Calculation Guide
Correct heating power selection ensures efficient operation and stable temperature control.
Power(kW)=Air Flow(m³/h) × Temperature Rise(°C) × 0.00034
Heating Power Formula
Power(kW) = Air Flow(m³/h) × Temperature Rise(℃) × 0.00034
Example:
- Airflow: 5000 m³/h
- Temperature rise: 20℃
- Required power: approximately 34kW
Considering heat loss and operating conditions, a safety factor of 1.2-1.3 is recommended.
Duct Heater Material Selection Guide
SS304 Stainless Steel
Suitable for general industrial air heating applications with good corrosion resistance and cost efficiency.
SS316 Stainless Steel
Recommended for humid environments or applications requiring higher corrosion resistance.
Incoloy 800 Alloy
Designed for high temperature applications requiring excellent oxidation resistance.
Custom OEM Duct Heater Manufacturing
Designed according to your equipment structure and operating conditions.
Electrical Design
- Voltage customization
- Power adjustment
- Wiring configuration
- Control system integration
Mechanical Design
- Custom dimensions
- Flange design
- Installation structure
- Housing customization
Performance Design
- Airflow analysis
- Temperature requirement
- Material selection
- Heating efficiency optimization
Engineering Support For Industrial Heating Projects
ELEKHEAT engineers provide professional assistance from initial heating calculation to final production.
- Heating capacity calculation
- Heating element design
- Material recommendation
- Mechanical structure optimization
- OEM project support
Industrial Heating Manufacturing Capability
Reliable production capability supporting OEM customers, engineering projects and industrial heating applications worldwide.
Complete Manufacturing Process Control
ELEKHEAT controls the complete manufacturing process from heating element production to final assembly and testing.
- Professional heating element production lines
- Experienced engineering team
- Customized industrial heater manufacturing
- Strict quality inspection before shipment
- Stable supply capability for global customers
Quality Control Before Shipment
Every ELEKHEAT duct heater is inspected to ensure safe and reliable operation.
Electrical Testing
Resistance testing and insulation resistance testing ensure electrical safety and product consistency.
Mechanical Inspection
Dimensions, welding quality and structural requirements are carefully inspected before delivery.
Performance Verification
Heating performance and control system operation are verified according to customer requirements.
Quality Standards & Certifications
ELEKHEAT follows international quality standards to provide reliable industrial heating solutions.
Frequently Asked Questions About Electric Duct Heaters
Find answers to common questions about electric duct heater selection, power calculation, customization options and technical requirements.
What is an electric duct heater?
An electric duct heater is a heating device installed inside an air duct system to heat moving air through electrical resistance heating elements. It is commonly used in HVAC systems, industrial dryers and process heating equipment.
How do I calculate duct heater power?
The required power depends on airflow rate and temperature rise. The basic calculation formula is:
This calculation helps determine the approximate heating capacity required for an electric duct heater application.
Can ELEKHEAT customize duct heaters?
Yes. ELEKHEAT provides OEM customization including heating power, voltage, dimensions, materials, installation structure and control systems to meet different industrial air heating requirements.
What materials are available for duct heaters?
Common materials include SS304, SS316 and Incoloy 800. Material selection depends on operating temperature, airflow conditions and working environment.
What information is needed for duct heater quotation?
Please provide airflow rate, inlet temperature, outlet temperature, heating power requirement, voltage and installation dimensions. Our engineers will recommend a suitable duct heater solution based on your application requirements.
Request Your Custom Electric Duct Heater Solution
ELEKHEAT provides reliable industrial duct heater solutions for OEM equipment manufacturers, engineering companies and global industrial projects.
