Stelpro USA

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All Systems Operational

Since Tuesday, 02/23/2021 04:00
Eastern Time Zone

Round and Custom Duct Heaters

Made-to-order comfort

SDHR-SDHx

As practical as they are efficient, duct heaters supply the energy required to raise a room's temperature to the desired setpoint. Their modulation system and temperature sensor deliver precise and efficient performance, while their modular design makes for easy installation and maintenance. Customize your ventilation system with our standard or custom duct heaters.

Product images

  • SDHX | AMBIANCE2
  • SDHX | AMBIANCE1
  • SDHx | 3PRODUCTS
  • SDHR | ANGLE
  • SDHR | FACE
  • SDHI | ANGLE
  • SDHI | FACE
  • SDHF | ANGLE2
  • SDHF | FRONT2
  • SDHF | ANGLE
  • SDHF | FACE

Advantages

  • 4 safety levelsBuilt-in temperature limiting sensor, connection terminals between control barriers and automatic and manual overload protection.
  • Advanced electronic controls compatible with 4 control signals0-10 VDC, 2-10 VDC, 24 VDC PWM or 24 VAC control
  • Modulating elements (SCR technology)Accurate and stable temperature
  • Multiple sensor options

FINISH

  • 20 to 16 gauge galvanized steel cabinet resistant to corrosion

MANUFACTURING

  • Junction box door
  • Removable electric elements (optional)
  • Double thermal protections (manual and automatic)
  • Neoprene gasket (optional)
  • Nema 4, Nema 4x and Nema 12 control box (optional)
  • Stainless steel element housing (optional)

ELEMENTS

  • Open, nichrome elements
  • Tubular in Incoloy 800
  • Modulation of the elements by SCR technology to maintain a constant temperature using only the required energy

CONTROL

  • Built-in temperature limit sensor (TT option)
  • Electronic air velocity sensor (P option)
  • For more electronic control and card options, see the options and controls table
  • Control voltage: 0-10 V, 2-10 V (4-20mA), 24Vac (PWM), 24Vdc
  • Heater interlock included

INSTALLATION

  • Round duct starting at 4 in. (SDHR model)
  • Rectangular duct starting at 6 in. x 6 in. (SDHI and SDHF models)
  • Vertical, horizontal, upflow or downflow position
  • “Zero inch” clearance from flammable materials

WARRANTY

  • Three years