Duct Heaters

Duct Heaters

duct heaters are ideal solutions for a variety of applications, including space heating, primary heating, secondary heating auxiliary heating, reheating, or multizone and variable air volume heating. National heaters use proprietary software packages to specify coils and wiring configurations, sheet metal, element support racks, controls, options, and accessories. Our software allows immediate design changes when our customers request them.

Our electric air duct heaters are designed using the most suitable materials and element types for our customer’s requirements. Our experienced design engineers can recommend the most suitable type of element layout. Using standard round Incoloy, stainless steel elements, finned elements, or open spiral elements depending on the output required. The heaters must be staggered at the correct angles to the direction of the airflow which generates turbulent flow and maximizes the heat transfer.

Our electric air duct heaters are also suitable for housings and suit any temperature whether you require a square, round, tall, long, or rectangle heater, Elmatic will build it for you.

  • Energy efficient
  • Corrosion and oxidation resistance
  • Quite easy to mount
  • Durable and easy maintenance
  • Rugged construction eliminates hazard of electric shock
  • Reinforced frame allows for minimum vibration
  • Minimal heat loss
  • Heat Treating
  • Air Drying Operations
  • Air Handling Equipment
  • Forced Air Comfort Heating
  • Core Drying
  • Fan Coils
  • Booster Air
  • Air Preheating
  • Terminal Reheating
  • Multi zone Reheating
  • Resistor Load Banks
  • Annealing
options:
Sheath MaterialSteel, Copper, Stainless Steel, INCOLOY
Heating ElementTubular, Finned and Open Coil
Watt DensityUp to 40 W/in2
WattageUpto 2 MW
ControlsSSR/ SCR/ Digitally Controlled
Diameter of Tube0.260, 0.315, 0.375, 0.430, 0.475
Voltage120, 240, 300, 480, 600
Sheath Length11 – 240 inches
Process Temperature-29 to 650 ° C
Wattage Tolerance+5%, -10%
Resistance Tolerance-5%, +10%