Finned Tubular Heaters

Tubular heating elements with fins brazed or welded along their length to increase surface area, for fast, efficient air and gas heating in ducts, ovens, and process airflow.

Finned Tubular Heaters
Process & Air Heaters

Finned tubular heaters take the same sheathed tubular element used in our standard Process & Tubular Heaters and add fins along the heated length — typically steel or aluminium fins, spirally wound and brazed or welded to the sheath. The fins substantially increase the surface area in contact with moving air or gas, which improves heat transfer efficiency and allows a lower sheath temperature for a given heat output.

This makes finned tubular elements well suited to any application where air or gas is forced across the heater, rather than where the heater is in direct contact with a solid or liquid load.

Specifications

Technical Specifications

Base ElementSheathed tubular heating element (Ni-Cr 80/20 in MgO-filled metal sheath)
Fin MaterialSteel or aluminium, spirally wound and brazed/welded to the sheath
Material of ConstructionSteel (ERW/seamless), Stainless Steel ASTM Grade 304/304L/310/316/316L/321, Alloys 600, 625, 800
ApplicationForced-air / gas heating — not for immersion or direct-contact loads
Benefits

Key Advantages

  • Larger surface area improves heat transfer to moving air or gas
  • Lower sheath temperature for a given watt output extends element life
  • Custom fin pitch and density to match application airflow
Applications

Where It's Used

  • Duct and process air heaters
  • Industrial ovens and furnaces
  • HVAC process air heating
  • Drying and curing equipment
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Resistant nickel-chromium (80/20) wire inserted into a protective metal sheath filled with high-purity electro-melt MgO, compacted for excellent heat transfer.

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