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Home | Duct Heaters

Duct Heaters

Carlton Technologies stock a number of standard air duct heaters for a number of air heating applications in the UK. We can also provide bespoke solutions, please get in touch to discuss your specific requirements

We produce electrical heating elements for duct air heaters in large air conditioning units or drying oven to regulate air flow and air temperature as an industrial heating solution.

The air duct heaters can be tubular (also finned) or open coil heating elements and are mounted on rectangular or circular metal section frames suitably designed for ease of fitting into our customers design application.

Made from galvanised carbon steel for rectangular ducts, providing increased air stream and good outlet temperatures. At Carlton Tech, we supply a wide range of great heater element solutions including electric air heaters, atex heaters, immersion heaters, and more systems for heat transfer.

What are duct heaters? Expand Collapse
Duct heaters are industrial electric heating elements designed to heat air as it passes through HVAC systems, ventilation ducts, or drying ovens. They increase the thermal energy of airflow, providing controlled and efficient temperature regulation for both commercial and industrial applications.
Well-engineered duct heaters provide:
  • Consistent outlet temperatures across the airflow
  • Minimal pressure drop in the duct system
  • Efficient heating, balancing heating power, airflow rates, and duct design
What are ATEX duct heaters? Expand Collapse
ATEX duct heaters are designed for use in hazardous or explosive atmospheres, such as areas with flammable gases, dust, or vapours. Our ATEX-compliant duct heating elements meet strict European safety standards for industrial applications.
When selecting a duct heater, you should consider:
  • Duct size (cross-section and length)
  • Airflow rate and velocity
  • Desired outlet air temperature
  • Ambient conditions and duct material
  • Safety requirements (e.g., ATEX compliance)
  • Electrical supply voltage and power rating
Finned tubular duct heaters: Higher surface area for improved heat exchange, uniform heating, and better efficiency in high-flow systems.

Open-coil duct heating elements: More compact, easier to maintain, but may have higher exposed temperatures and different operational considerations.
Duct heaters are commonly used in:
  • HVAC and ventilation systems
  • Drying ovens and process air heating
  • Food and beverage processing
  • Pharmaceutical manufacturing
  • Industrial OEM applications requiring precise warm air control