Flagro FLE-150RC: Electric Heater
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The Flagro FLE-150RC 150 kW Electric Forced-Air Heater delivers up to 512,000 BTU/hr of flameless electric heat for construction sites, warehouses, and industrial facilities. Featuring three adjustable heating settings, powerful airflow, and ductable supply and return connections, it provides a high-capacity temporary heating solution.
Key Specifications:
- Heating Capacity: 60 / 90 / 150 kW
- Maximum Output: 512,000 BTU/hr
- Airflow: Up to 7,300 CFM with heat
- Electrical: 480V / 3-Phase / 200A Supply
- Blower: 7.5 HP Direct Drive
- Supply Duct: 20″
- Return Duct: 20″
- Ducting: Up to 200 Feet in Approved Configurations
- Thermostat: Optional Remote Control
- Weight: 560 lbs
- Installation: Indoor Use Only
Features: Variable-speed blower, color-coded cam-lock connections, fan-only operation, and heavy-duty construction.
Contact Climate Control Solutions for current pricing and availability.
The Flagro FLE-150RC 150 kW Electric Forced-Air Heater delivers high-capacity temporary heating for commercial construction sites, warehouses, industrial facilities, and large enclosed work areas. Providing up to 512,000 BTU/hr of electric heat, the FLE-150RC combines powerful airflow, adjustable heating output, and flexible ducting for demanding commercial applications.
Designed for industrial electrical service, this heater offers three heating settings of 60 kW, 90 kW, and 150 kW, allowing heating output to be adjusted according to application requirements.
The FLE-150RC uses a 7.5 HP direct-drive blower to deliver up to 7,300 CFM of heated airflow, along with a fan-only mode for air circulation without heating.
With 20-inch supply and return-air connections, color-coded cam-lock electrical connections, and rugged commercial construction, the Flagro FLE-150RC is designed for temporary heating applications where high-capacity electric heat is preferred over combustion-based equipment.
Key Features of the Flagro FLE-150RC
- 150 kW Maximum Heating Capacity: Delivers approximately 512,000 BTU/hr of electric heating.
- Three Heating Settings: Select 60 kW, 90 kW, or 150 kW depending on heating requirements.
- High-Volume Airflow: Provides up to 7,300 CFM at maximum heating output.
- 100% Electric Heating: Produces heat without on-site fuel combustion or burner exhaust.
- 480V Three-Phase Operation: Designed for compatible high-capacity industrial electrical systems.
- 7.5 HP Direct-Drive Blower: Provides powerful airflow through compatible ducting.
- Variable Fan Speed: Automatically adjusts blower operation to support appropriate temperature rise.
- 20-Inch Supply-Air Outlet: Compatible with approved heated-air ducting.
- 20-Inch Return-Air Connection: Supports compatible return-air configurations.
- Extended Ducting Capability: Published ducting capability up to 200 feet in approved installations.
- Color-Coded Cam-Lock Connections: Designed for commercial electrical installations.
- Optional Remote Thermostat: Available for temperature-controlled operation.
- Fan-Only Mode: Provides air circulation without activating the heating elements.
- Recessed Control Panel: Includes airflow and high-temperature indicator lights.
- Heavy-Duty Construction: Black powder-coated cabinet with protective inlet and outlet guards.
- Indoor Use: Manufacturer-approved for indoor applications.
Three Adjustable Heating Settings
The Flagro FLE-150RC provides three selectable heating capacities for commercial and industrial applications.
| Heating Setting | Heat Output | Airflow |
|---|---|---|
| 60 kW | 205,000 BTU/hr | 5,400 CFM |
| 90 kW | 307,000 BTU/hr | 6,700 CFM |
| 150 kW | 512,000 BTU/hr | 7,300 CFM |
| Fan Only | No Heating | 7,900 CFM |
The adjustable settings allow the heater to support different temporary heating demands without requiring separate equipment for each capacity.
The blower’s variable-speed control adjusts airflow according to the selected heat setting.
This helps maintain suitable air temperature rise and heating performance across the operating range.
Flameless Electric Heating
Unlike propane, natural gas, and oil-fired heaters, the FLE-150RC generates heat using electric resistance heating elements.
Because there is no on-site fuel combustion, the heater does not produce burner exhaust or combustion moisture.
Advantages of Electric Heating
- No on-site fuel combustion
- No fuel tank or gas supply connections
- No burner flue exhaust
- No added combustion moisture
- Adjustable heating capacity
- Ductable supply and return airflow
- Compatible with properly designed indoor temporary heating systems
The FLE-150RC is particularly useful where combustion-based heating equipment is undesirable and sufficient electrical capacity is available.
Electrical heating does not eliminate the need for appropriate building ventilation or compliance with installation requirements.
Common Applications for the Flagro FLE-150RC
Commercial Construction Heating
Construction projects often require temporary heating before permanent HVAC equipment is operational.
The FLE-150RC provides electric heat for suitable indoor construction environments.
Common applications include:
- Commercial building construction
- Winter construction projects
- Building renovations
- HVAC system replacement
- Temporary heating during interior work
- Commercial maintenance projects
Warehouses and Industrial Facilities
Large commercial buildings may require supplemental heating during cold weather or permanent HVAC maintenance.
The FLE-150RC offers three heating settings, a high-capacity blower, and ductable airflow for properly designed temporary heating installations.
Potential applications include:
- Warehouses
- Manufacturing facilities
- Industrial workshops
- Distribution facilities
- Commercial maintenance areas
Temporary Commercial Structures
The FLE-150RC can support suitable indoor temporary structures where adequate electrical power and approved air-distribution arrangements are available.
Its electric heating elements avoid the combustion exhaust associated with fuel-fired heaters.
Emergency Commercial Heating
Temporary electric heating may be needed during:
- Permanent HVAC equipment failure
- Scheduled heating-system maintenance
- Commercial renovation projects
- Industrial facility shutdowns
- Seasonal heating demand
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Flagro FLE-150RC Technical Specifications
| Specification | Flagro FLE-150RC |
|---|---|
| Model | FLE-150RC |
| Equipment Type | Industrial Electric Forced-Air Heater |
| Maximum Heating Capacity | 150 kW / 512,000 BTU/hr |
| Intermediate Heating Setting | 90 kW / 307,000 BTU/hr |
| Low Heating Setting | 60 kW / 205,000 BTU/hr |
| Electrical Supply | 480V / 3-Phase / 60Hz |
| Published Supply Requirement | 200A |
| Alternate Voltage Version | 575V Configuration Documented |
| Blower Motor | 7.5 HP |
| Blower Type | Direct Drive |
| Airflow at 150 kW | 7,300 CFM |
| Airflow at 90 kW | 6,700 CFM |
| Airflow at 60 kW | 5,400 CFM |
| Fan-Only Airflow | 7,900 CFM |
| Maximum Static Pressure | 3″ W.C. |
| Supply-Air Connection | 20″ |
| Return-Air Connection | 20″ |
| Advertised Ducting Capability | Up to 200 Feet |
| Electrical Connection | Color-Coded Cam-Lock |
| Remote Thermostat | Optional |
| Thermostat Cord | 25 Feet |
| Fan Speed Control | Variable Frequency Drive |
| Length | 66″ |
| Width | 36″ |
| Height | 40″ |
| Equipment Weight | 560 lbs |
| Approved Location | Indoor Use Only |
Specifications are based on Flagro’s published FLE-150 series literature. Confirm the exact voltage configuration, equipment nameplate, electrical requirements, and availability before ordering.
Industrial Electrical Requirements
The Flagro FLE-150RC is designed for facilities with high-capacity industrial electrical service.
For the 480V configuration, Flagro publishes the following electrical supply requirement:
480V / Three Phase / 200A
Older FLE-150 literature identifies approximately 161 amps at maximum 150 kW heating output. The manufacturer’s published 200A supply requirement should not be confused with the heater’s operating current.
Important Electrical Considerations
- Verify available three-phase voltage before ordering.
- Confirm sufficient electrical service capacity.
- Use compatible color-coded cam-lock connections.
- Follow manufacturer grounding requirements.
- Have electrical installation performed by qualified personnel.
- Follow the current equipment nameplate and applicable electrical codes.
The FLE-150RC is not compatible with standard 115V or 230V convenience outlets.
An appropriate industrial electrical supply or adequately sized temporary power system is required.
Ductable Supply and Return Air
The FLE-150RC features a 20-inch heated-air supply connection and a 20-inch return-air inlet.
These connections allow the heater to be integrated into appropriately designed temporary air-distribution systems.
20-Inch Supply-Air Ducting
Heated air can be directed through compatible high-temperature ducting to distribute warmth throughout the intended area.
20-Inch Return-Air Ducting
The return-air connection allows suitable recirculating configurations.
This can help maintain temperatures by returning air from the conditioned area to the heater.
Extended Ducting Capability
Flagro advertises ducting capability of up to 200 feet for the FLE-150 series.
The actual permitted configuration depends on duct dimensions, static pressure, air resistance, and manufacturer requirements.
The maximum advertised distance should not be interpreted as approval for every combination of duct lengths and fittings.
Compatible Accessories
FLE-HDG20 — 20-Inch Supply-Air Duct
A manufacturer-listed 20-inch by 25-foot heated-air duct accessory for compatible outlet configurations.
FLE-HDV20 — 20-Inch Return-Air Duct
A manufacturer-listed 20-inch by 25-foot return-air duct for approved configurations.
Optional Remote Thermostat
The heater supports an optional remote thermostat with a 25-foot cord for temperature-controlled operation.
Electrical Connection Equipment
Suitable industrial cam-lock power connections and cables may be required depending on the installation.
The correct electrical accessories must be specified for the supplied voltage, current requirements, and site electrical configuration.
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Variable-Speed Blower and Fan-Only Mode
The FLE-150RC uses a variable frequency drive to control blower speed.
Airflow adjusts according to the selected heating output.
This helps maintain appropriate discharge-air temperatures while allowing different heating capacities to be used.
The heater also provides a fan-only operating mode with published airflow of up to 7,900 CFM.
Fan-only operation allows air circulation when additional heating is not required.
Commercial-Grade Construction and Controls
The Flagro FLE-150RC is designed for demanding temporary heating applications.
Its construction features include:
- Heavy-duty equipment frame
- Black powder-coated finish
- Protective inlet and outlet guards
- Recessed operating controls
- Airflow indicator lights
- High-temperature warning indicators
- Color-coded cam-lock electrical connections
- Direct-drive industrial blower
The manufacturer lists equipment dimensions of 66 inches long, 36 inches wide, and 40 inches high, with an approximate weight of 560 pounds.
Appropriate equipment-handling procedures are required when transporting and positioning the heater.
Safety and Installation Requirements
The Flagro FLE-150RC is industrial electric heating equipment designed for approved indoor installations.
Important safety considerations include:
- Verify the correct equipment voltage and electrical supply.
- Use properly rated three-phase electrical service.
- Have power connections installed by qualified personnel.
- Follow manufacturer grounding requirements.
- Maintain required clearances from combustible materials.
- Keep supply and return-air openings unobstructed.
- Use approved ducting and connection accessories.
- Protect the heater from water exposure.
- Maintain airflow through the heating elements.
- Follow manufacturer shutdown and cooling procedures.
- Inspect electrical connections and equipment before operation.
- Follow all applicable building, fire, and electrical codes.
The FLE-150RC does not require a combustion exhaust flue because it operates electrically.
However, its high electrical demand requires careful installation planning.
Why Choose the Flagro FLE-150RC?
The Flagro FLE-150RC combines 150 kW of heating capacity, up to 7,300 CFM of heated airflow, and three adjustable heat settings in one industrial electric heater.
Its electric resistance heating system provides high-capacity temporary heat without on-site fuel combustion.
The heater’s ductable supply and return connections, variable-speed blower, and optional thermostat make it a flexible option for suitable commercial and industrial applications.
Alternative Electric Heating Options
For projects with lower heating demand or limited electrical capacity, smaller electric heaters may offer a more suitable solution.
The Flagro FLE-60RC provides up to 60 kW of heating capacity.
Multiple smaller heaters can also provide heating across different areas, subject to available power and appropriate load calculations.
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Frequently Asked Questions About the Flagro FLE-150RC
How much heat does the Flagro FLE-150RC produce?
The heater provides up to 150 kW, approximately 512,000 BTU/hr, of electric heating output.
What heating settings are available?
The heater provides three heating settings: 60 kW, 90 kW, and 150 kW.
What voltage does the FLE-150RC require?
The documented 480V configuration requires three-phase industrial electrical service. A 575V configuration is also documented.
How much electrical capacity is needed?
Flagro’s published 480V specifications identify a 200A three-phase electrical supply requirement. The electrical installation must follow the nameplate and current manufacturer instructions.
How much airflow does the heater provide?
The FLE-150RC provides up to 7,300 CFM at its maximum heating setting.
Does the heater produce combustion exhaust?
No. The FLE-150RC uses electric resistance heating elements and does not burn fuel on site.
Can the FLE-150RC be connected to ducting?
Yes. The heater features 20-inch supply and return-air connections for compatible ducting.
How much ducting can the heater support?
Flagro advertises ducting capability up to 200 feet, subject to approved installation configurations.
Does the heater have a thermostat?
An optional remote thermostat with a 25-foot cord is available.
Can it operate without heating?
Yes. The fan-only mode provides air circulation without activating the electric heating elements.
Can the FLE-150RC be used outdoors?
The manufacturer identifies the equipment as approved for indoor use only.
How much does the heater weigh?
Flagro’s published equipment weight is approximately 560 pounds.
Is the FLE-150RC currently available?
Availability depends on the manufacturer’s production schedule and the required voltage configuration. Contact Climate Control Solutions for current lead times.
Request a Quote for the Flagro FLE-150RC
Climate Control Solutions supplies industrial electric heaters, commercial temporary heating equipment, and high-capacity HVAC solutions nationwide.
Equipment selection can include heating-capacity requirements, voltage compatibility, electrical connections, ducting, and freight arrangements.
Contact Climate Control Solutions for pricing, lead times, and availability.
Phone: (800) 633-8711
Email: [email protected]
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