Horizontal Electric Unit Heater

• All-Electric Operation: No gas, no emissions. Ideal for electrified buildings and sustainability goals.
• Multiple Power Configurations: Available in single- or three-phase options to fit most electrical systems.
• High-Capacity Heating Elements: Delivers reliable warmth across a wide BTU range.
• Compact Horizontal Design: Mounts easily near ceilings to save floor space.
• Adjustable Louvers: Direct heat precisely where it’s needed for even comfort.
• Quiet, Maintenance-Free Operation: No combustion, no venting, and minimal moving parts.
• Durable 20 ga. Steel Construction: Built for long life in commercial and industrial environments.
• Flexible Mounting: Ceiling or wall brackets allow for optimal airflow orientation.
• Adjustable Deflector Blades: Modify the heat throw length and direct heated air either upwards or downwards.
• Accessible Terminal and Junction Boxes: Simplify access to heating-element terminals, overheat control switch, power supply, and control connections.
• Enclosed Motors: Safeguarded against thermal overload for enhanced reliability.
• Balanced Fans: Both statically and dynamically balanced for stable operation.
• Automatic Overheat Control: Interrupts power to the heating elements if overheating occurs, resetting once it’s safe.
• Removable Fan and Motor Assemblies: Allow for maintenance without lowering the unit heater.
• Hinged Bottom Access: Provides easy access to controls for convenience.
• DEA in the USA: Proudly designed, engineered & assembled in America.

Factory-Configured Options

• Capacity Options (kW Rating):
  • 3.0kW (10,200 BTU)
  • 5.0kW (17,100 BTU)
  • 7.5kW (25,600 BTU)
  • 10.0kW (34,100 BTU)
  • 12.5kW (42,700 BTU)
  • 15.0kW (51,200 BTU)
  • 20.0kW (68,200 BTU)
  • 25.0kW (85,300 BTU)

• Power Supply (Voltage & Phase) Options:
  • Single-Phase: 208V/1ph or 240V/1ph (3.0kW through 10.0kW only)
  • Three-Phase: 208V/3ph, 240V/3ph, 480V/3ph, or 600V/3ph (12.5kW to 25.0kW units are strictly three-phase)

• Control Code (Factory-Installed Control Options):
  • No Factory Option
  • Factory-Mounted Disconnect Switch
  • Factory-Mounted Line-Volt Thermostat
  • Factory-Mounted 24V Transformer
  • Factory-Mounted Disconnect Switch and Line-Volt Thermostat
  • Factory-Mounted Disconnect Switch and 24V Transformer

• Unit-Mounted Thermostat Kit
  • A field-installed dial thermostat kit designed exclusively for HER units. (Note: Cannot be combined with the low-voltage control kit).

• Remote Line-Voltage Single-Stage Thermostat
  • A wall-mounted line-voltage thermostat for standard on/off temperature control.

• Low-Voltage Single-Stage Thermostat
  • A wall-mounted low-voltage thermostat (requires the Low-Voltage Control Kit).

• Low-Voltage Control Kit
  • A transformer and contactor relay assembly allowing the heater to interface with standard low-voltage thermostats.

• Summer/Winter Toggle Switch Kit
  • A rated toggle switch in a conduit box. In “Summer” mode, the fan runs continuously for air circulation; in “Winter” mode, the thermostat cycles both the fan and heating elements together.

• Wall Mounting Bracket
  • A heavy-duty bracket for wall mounting where ceiling suspension is not feasible, featuring a single-point suspension that allows the unit to swivel up to 90° horizontally. (Applicable to larger models; not available for the smallest HER30 unit).

• Pipe Suspension Adapter Kit
  • A threaded-pipe mounting kit containing drilled pipe caps and capscrews. (Requires 1 kit per HER unit).

• Vertical Deflector Blades
  • Secondary vertical air deflector louvers installed on the front face of the unit to provide left/right directional control in addition to the standard horizontal louvers.

The HER series is perfect for spaces where gas isn’t practical or available. Its clean, all-electric operation makes it ideal for: