
Duct Heaters
Duct heaters used in forced air applications provide dedicated space heat or supplement existing heating systems. Typical applications are:
- Space heating
- Primary heating
- Secondary and/or auxiliary heating
- Reheat
- Multi-zone and VAV systems
- Replacement
OVERVIEW

IDHB
The IDHB series is an economical duct heater available in limited sizes. This duct heater features:
- 50/60 Hz compatibility
- Mounting: Horizontal or Vertical Up
- Capacity: Up to 18 kW per square foot
- Heater Controls: Stagged (1-3 stages)
- Voltages: 120/1 - 480/3
Capacity and stages are dependent on voltage/phase and heater dimensions.
Capacity: 39.9 kW maximum
Stages: 3 maximum
Certifications:
UL 1996

IDHE
The IDHE is a universal mounting, up to six different positions including vertical down. The IDHE has the following features:
- 50/60 Hz compatibility
- Mounting: Six different positions including vertical down
- Maximum size: 120 in. W x 144 in. H (3048 mm x 3658 mm)
- Capacity: Up to 30 kW per square foot
- Heater Controls: Staged, SCR, or Vernier SCR
- Thermostat: room or duct
- Voltages: 120/1 - 480/3
Capacity is dependent on voltage/phase and heater dimensions.
Capacity: 30 kW per square foot
Certifications:
UL 1996

IDHE-O
The IDHE-O has the same features as the IDHE and UL listed for outdoor applications. The IDHE-O has the following features:
- NEMA 4 housing
- 50/60 Hz compatibility
- Mounting: Six different positions including vertical down
- Maximum size: 120 in. W x 144 in. H (3048 mm x 3658 mm)
- Capacity: Up to 30 kW per square foot
- Heater Controls: Staged, SCR, or Vernier SCR
- Thermostat: room or duct
- Voltages: 120/1 - 480/3
- Power fusing required
Certifications:
UL 1996
- Options and Accessories
- Submittals
- Catalogs
-
Instruction Manuals
- Duct Heaters Series: IDHB, IDHE, and IDHE-O (#478052 IOM) Supplements
- IDHE-O Supplement (#484166 IOM)
- T725 Thermostat Installation Instructions (Pro1)
- T725 Thermostat Operation Instructions (Pro1)
- T855 Thermostat Installation Instructions (Pro1)
- T855 Thermostat Operation Instructions (Pro1)
- Viconics VT7225 Instruction Manual
- Viconics VT7225 User Guide
- Specifications
-
Drawings
-
STATIC MODEL DOWNLOAD3D CAD2D CAD
-
IDHBIDHEIDHE-O
-
- Videos
- Podcasts
- Warranty