NTT HEATING SDN BHD, a reputable manufacturer in the heating solutions industry, continues to deliver innovation and reliability with its NTT Air Duct Heater product line. Specifically engineered to meet the needs of a wide range of applications across various industries, NTT Air Duct Heaters offer efficient, durable, and customizable solutions for controlling air temperature in ducted systems.
With a strong distribution presence in local and across Southeast Asia region, NTT HEATING SDN BHD has grown into a trusted supplier for HVAC contractors, OEMs, system integrators, and industrial clients seeking high-performance and long-lasting heating equipment.
Product Overview: What is an Air Duct Heater?
An air duct heater is an electrical heating device installed within air handling systems or ducts. Its primary function is to heat moving air before it is distributed through ventilation ducts in various facilities. Air duct heaters are essential in applications where controlled air temperature is required for comfort, process control, or dehumidification.
The NTT Air Duct Heater is designed to deliver precision temperature control, robust construction, and easy integration into existing HVAC or ventilation systems.
Specifications of NTT Air Duct Heater
NTT’s air duct heaters are custom-built to suit specific application needs. The standard specifications include:
Material Options:
- Heating Element : Stainless Steel (SS304 or SS316)
- Frame: Galvanized steel, mild steel with powder coating, or stainless steel
- Terminal Box: Weatherproof (IP55 or IP65 upon request)
Heating Elements:
- Finned tubular or plain tubular heating elements
- Watt density: Customizable from 10 to 50 W/in²
- Surface temperature control available
Voltage Rating:
- 230V / 415V / 3-phase
- Custom voltage configurations available upon request
Capacity Range:
- From 1kW up to 200kW and above (modular designs possible for higher capacity)
Airflow Compatibility:
- Designed for low to high-speed airflows (1.5 to 15 m/s)
Control Options:
- Built-in thermostats or external control panels
- Thermocouples, RTDs, and safety thermal cutouts available
- Thyristor (4-20 mAmp)
Mounting Style:
- Flanged or slip-in (inline mounting)
- Horizontal or vertical orientation
Insulation:
- Ceramic or mica insulation depending on temperature rangeKey Features
1. Custom Design Flexibility
NTT offers bespoke configurations to fit into any duct size, airflow capacity, or application type. Whether your system requires high heat output or a low-profile installation, NTT Air Duct Heaters can be tailored to meet precise specifications.
2. Durable Construction
The use of high-quality stainless steel for heating elements ensures resistance to corrosion, oxidation, and high-temperature operation. All materials are selected for long life and consistent performance even in demanding environments.
3. Efficient Heat Transfer
Finned tubular heating elements are used to maximize surface area and improve thermal efficiency. This leads to faster heat-up times and more uniform temperature distribution across the ducted air.
4. Built-in Safety
Safety mechanisms such as automatic thermal cutoffs, overheat protection, and airflow interlocks are included or can be integrated into the design. This reduces the risk of overheating and ensures safe operation at all times.
5. Easy Installation and Maintenance
NTT Air Duct Heaters are engineered for simple integration into existing systems. Removable heating element and modular designs make maintenance straightforward and cost- effective.
Benefits of Using NTT Air Duct Heater
1. Energy Efficiency
With optimized heat transfer and customizable watt density, the heater delivers maximum output with minimal energy consumption. This leads to lower operating costs over time.
2. Reliable Performance
Engineered for 24/7 operation, the NTT Air Duct Heater maintains consistent air temperature even in fluctuating load conditions, making it ideal for critical process environments.
3. Versatile Application
Whether for air pre-heating, humidity control, or thermal comfort, the heater adapts to various airflow types and volumes. Its modular design allows expansion or changes without a full system overhaul.
4. Improved Environmental Control
By controlling duct air temperature precisely, facilities can maintain ideal operating conditions for personnel, equipment, or sensitive materials.
Applications Across Industries
NTT Air Duct Heaters are used in a wide array of industries where controlled heated air is essential. Applications include:
HVAC Systems
- Heating, Ventilation, and Air Conditioning systems in commercial buildings, malls, and hotels
- Supplementary heating in air handling units (AHUs)
Pharmaceutical and Hospitals
- Air purification and temperature-controlled zones
- Maintaining sterile environments with proper air handling
- Dehumidified process
Textile Industry
- Drying yarns and fabrics with heated airflow
- Maintaining proper humidity levels
Food Processing
- Drying, cooking, or maintaining food-safe environments
- Pre-heating air in storage areas
Wood and Paper Industry
- Kiln drying of wood
- Process air heating in paper manufacturing
Commercial Buildings
- Heating for lobbies, corridors, and large open spaces
- Energy-efficient zone heating
Electronics and Semiconductor Manufacturing
- Clean air heating for assembly lines
- ESD-safe and temperature-controlled work zones
Marine and Offshore Platforms
- Humidity and temperature control in cabins or storage compartments
Why Choose NTT HEATING SDN BHD?
Engineering Expertise
With decades of experience in industrial heating elements, we understand the specific technical requirements and performance expectations of various industries.
Manufactured In-House
NTT controls the heating element fabrication quality to metal works and final assembly— ensuring consistent quality and reliable lead times.
Custom Orders & Fast Delivery
We support custom orders with short turnaround times. Thanks to modular design and lean manufacturing, we can meet both small batch and large volume needs efficiently.
Technical Support & Consultation
Our technical team assists with sizing, airflow compatibility, and control system integration. We help customers design a complete heating solution, not just supply a component.
Conclusion: The Smart Choice for Efficient Air Heating
The NTT Air Duct Heater stands out as a reliable, efficient, and highly customizable heating solution that serves a diverse range of applications. Whether you are managing airflow in a commercial HVAC system or controlling process air in an industrial plant, NTT’s precision- engineered heaters are designed to meet your needs.
With a growing export footprint local and across Southeast Asia region, NTT HEATING SDN BHD is proud to be a regional leader in heating technology—offering quality you can trust, and service you can count on.
