Flagro FVO-200RC42 Indirect Fired Heater with Recirculation Hood – 185,000 BTU and 42-Gallon Tank
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The Flagro FVO-200RC42 185,000 BTU Indirect-Fired Heater delivers portable commercial heating with a larger 42-gallon fuel tank, recirculation hood, and 2,600 CFM airflow. Designed for construction sites, warehouses, and temporary heating applications, it features a Riello burner and stainless steel heat exchanger.
Key Specifications:
- Heating: 185,000 BTU/hr
- Fuel: Diesel, Fuel Oil or Kerosene
- Fuel Tank: 42 Gallons
- Runtime: Approximately 35 Hours
- Airflow: 2,600 CFM
- Electrical: 115V / 15A Supply
- Air Outlet: Single 12″ or 16″
- Return-Air Inlet: 12″
- Ducting: Up to 150 Feet in Approved Configurations
Features: 16″ flat-free wheels, recirculation hood, and optional thermostat control.
Nationwide shipping available. Contact us for pricing and availability.
The Flagro FVO-200RC42 185,000 BTU Indirect-Fired Heater provides reliable temporary heating for construction sites, warehouses, industrial facilities, and commercial projects. Featuring a 42-gallon built-in fuel tank, return-air recirculation, and 2,600 CFM airflow, this portable oil-fired heater is designed for extended heating applications.
The FVO-200RC42 uses a fully welded 16-gauge 304 stainless steel heat exchanger to separate normal combustion exhaust from the heated supply air. Its recirculation hood allows previously warmed air to be returned to the heater, helping maintain temperatures in properly designed installations.
Powered by a proven Riello burner with cold-weather startup features, the heater operates on approved fuel oil, diesel, or kerosene. The manufacturer lists up to approximately 35 hours of operation for the 42-gallon configuration, depending on operating conditions.
With a compact cabinet, 16-inch flat-free wheels, and the ability to support approved ducting arrangements up to 150 feet, the Flagro FVO-200RC42 delivers portable commercial heating for demanding temporary applications.
Key Features of the Flagro FVO-200RC42
- 185,000 BTU/hr Heating Capacity: Provides temporary heat for commercial construction and industrial applications.
- 42-Gallon Built-In Fuel Tank: Extended fuel storage reduces the frequency of refueling.
- Approximately 35-Hour Published Runtime: Designed for longer heating projects.
- 2,600 CFM Airflow: Delivers heated air through compatible commercial ducting.
- Indirect-Fired Heating: Keeps normal combustion exhaust separate from the heated supply air.
- Return-Air Recirculation: Includes a 12-inch return-air inlet.
- Riello Burner: Features a nozzle preheater and upgraded low-temperature fuel pump for cold-weather startup.
- 304 Stainless Steel Heat Exchanger: Fully welded, 16-gauge construction.
- 115V Electrical Operation: Uses a 15-amp electrical supply with a published operating draw of 6 amps.
- 1/2 HP Blower Motor: Backward-incline design for efficient airflow.
- Extended Ducting Capability: Supports approved outlet ducting configurations up to 150 feet.
- Flexible Outlet Connections: Available with a single 12-inch or single 16-inch heated-air outlet.
- Thermostat Compatible: Supports an optional remote thermostat.
- Smart Power Indicator: Helps verify proper electrical power.
- 16-Inch Flat-Free Wheels: Designed for convenient jobsite mobility.
- cETLus Listed: Manufacturer-listed safety certification.
Indirect-Fired Heating with Recirculation
The Flagro FVO-200RC42 uses an indirect-fired heating system to deliver warm air without intentionally introducing burner combustion products into the heated supply stream.
The heater transfers heat through a stainless steel heat exchanger, keeping normal burner exhaust separate from the supplied air.
This design is useful for temporary commercial heating applications where direct-fired combustion gases and additional combustion moisture are undesirable.
Benefits of Return-Air Recirculation
The FVO-200RC42 includes a dedicated 12-inch return-air inlet.
In an approved recirculating installation, air from the heated space can be returned to the heater and warmed again.
Potential benefits include:
- Improved temperature maintenance
- Reduced reliance on colder outside air
- More flexible temporary heating configurations
- Potential reductions in heating demand under suitable conditions
Actual fuel savings depend on the building’s heat loss, ventilation requirements, outdoor temperatures, and operating conditions.
Important: The heater still requires an adequate combustion-air supply and properly installed exhaust venting.
42-Gallon Fuel Tank and Extended Runtime
One of the main advantages of the FVO-200RC42 is its larger onboard fuel tank.
The manufacturer identifies a 42 US gallon tank designed for longer operating periods between refueling.
Published Fuel Specifications
| Specification | Value |
|---|---|
| Fuel Tank Capacity | 42 US Gallons |
| Fuel Type | No. 1 / No. 2 Fuel Oil, Diesel or Kerosene |
| Fuel Consumption | Approximately 1.30 GPH |
| Published Runtime | Approximately 35 Hours |
Actual runtime depends on available fuel, burner operation, and equipment configuration.
The larger tank makes this model particularly attractive for construction projects requiring sustained temporary heating.
FVO-200RC vs. FVO-200RC42
Both models deliver 185,000 BTU/hr of heating capacity and 2,600 CFM airflow.
The major difference is onboard fuel capacity.
- FVO-200RC: Standard configuration with a 23-gallon fuel tank.
- FVO-200RC42: Extended-runtime configuration with a 42-gallon fuel tank.
For projects where frequent refueling is inconvenient, the FVO-200RC42 provides additional fuel storage without moving into a higher heating-capacity class.
Common Applications for the Flagro FVO-200RC42
Construction Site Heating
The FVO-200RC42 provides temporary heat for suitable commercial construction projects during cold weather.
Applications include:
- Winter construction
- Building renovations
- Temporary work enclosures
- Commercial maintenance
- HVAC replacement projects
- Construction-related emergency heating
Its integrated fuel tank and portable design help simplify temporary deployment.
Warehouses and Industrial Facilities
Warehouses, workshops, and industrial facilities may require supplemental heat during seasonal temperature changes or HVAC maintenance.
The FVO-200RC42 delivers heated air through compatible ducting for appropriately sized spaces.
Temporary Structures and Commercial Tents
The unit can support properly designed temporary heating installations for commercial tents, construction shelters, and temporary buildings.
Its indirect-fired design separates normal combustion exhaust from the heated-air stream.
Heater placement, fuel storage, exhaust routing, ventilation, and ducting must comply with manufacturer requirements and applicable codes.
Emergency Commercial Heating
The FVO-200RC42 can also be used in suitable temporary heating applications during:
- Commercial HVAC failures
- Planned maintenance shutdowns
- Building renovations
- Industrial repairs
- Winter construction projects
Explore Commercial Heating Applications
Flagro FVO-200RC42 Technical Specifications
| Specification | Flagro FVO-200RC42 |
|---|---|
| Model | FVO-200RC42 |
| Equipment Type | Oil-Fired Indirect Heater with Recirculation |
| Heating Capacity | 185,000 BTU/hr |
| Fuel | No. 1 / No. 2 Fuel Oil, Diesel or Kerosene |
| Fuel Tank Capacity | 42 US Gallons |
| Published Runtime | Approximately 35 Hours |
| Fuel Consumption | Approximately 1.30 GPH |
| Electrical Supply | 115V / 60Hz |
| Manufacturer-Listed Circuit | 15 Amps |
| Operating Current | 6 Amps |
| Blower Motor | 1/2 HP |
| Airflow | 2,600 CFM |
| Burner | Riello |
| Ignition | Direct Spark |
| Burner Nozzle | 1.10 × 70A |
| Fuel Pump Pressure | 180 PSI |
| Heat Exchanger | 16-Gauge 304 Stainless Steel |
| Air Outlet | Single 12″ or Single 16″ |
| Return-Air Inlet | Single 12″ |
| Advertised Ducting Capability | Up to 150 Feet |
| Wheels | Two 16″ Flat-Free |
| Remote Thermostat | Optional |
| Length | 51.5″ |
| Width | 27″ |
| Height | 48″ |
| Weight | Confirm for Supplied Configuration |
| Certification | cETLus |
Specifications are based on Flagro’s published product information and operating manual. Manufacturer references differ on runtime and weight. Confirm the current equipment nameplate and shipping specifications before ordering.
Electrical Requirements
The Flagro FVO-200RC42 operates on 115V electrical power.
Published electrical specifications include:
- Electrical Supply: 115V / 15A
- Operating Current: 6 Amps
- Blower Motor: 1/2 HP
- Smart Power Indicator: Included
The manufacturer requires a properly grounded electrical connection.
The heater’s operating manual also specifies suitable extension-cord sizing when an extension cord is permitted.
Electrical connections must follow the current operating instructions.
Air Distribution and Ducting
The FVO-200RC42 delivers 2,600 CFM of heated airflow and supports compatible supply and return-air ducting.
Heated-Air Outlet
Flagro lists two outlet configurations:
- Single 12-inch heated-air outlet
- Single 16-inch heated-air outlet
Confirm the required outlet size when ordering.
Return-Air Inlet
The heater includes a single 12-inch return-air connection.
This inlet supports compatible recirculation arrangements that direct previously heated air back through the heater.
Extended Ducting Capability
Flagro advertises approved heated-air ducting up to 150 feet.
Actual ducting layouts must comply with manufacturer requirements for temperature rating, diameter, airflow resistance, and permissible configuration.
Do not assume every duct diameter or combination permits a 150-foot run.
Compatible Flagro Accessories
FV-HD12 — 12-Inch Heated-Air Duct
Flagro identifies the FV-HD12 for compatible 12-inch duct connections.
FV-HD12X25 — 12-Inch × 25-Foot Heated-Air Duct
An extended 12-inch supply-air duct option for approved installations.
FV-HDG16 — 16-Inch × 25-Foot Heated-Air Duct
Compatible with the appropriate 16-inch outlet configuration.
FV-THB — Remote Thermostat
The FV-THB is a manufacturer-listed remote thermostat accessory.
It allows thermostat-controlled operation when properly connected.
Contact Climate Control Solutions for compatible ducting and thermostat pricing.
Browse Commercial HVAC Accessories
Riello Burner Technology
The FVO-200RC42 features a Riello burner designed for oil-fired temporary heating.
Flagro highlights:
- Nozzle preheater for cold-weather startup
- Upgraded low-temperature fuel pump
- Direct spark ignition
- Thermostat-control capability
These features support operation during demanding construction and industrial heating projects.
Burner adjustments and maintenance should be performed according to Flagro’s instructions.
Durable, Portable Construction
The FVO-200RC42 features a commercial-grade cabinet and two 16-inch flat-free wheels.
The manufacturer lists dimensions of:
- Length: 51.5 inches
- Width: 27 inches
- Height: 48 inches
Its built-in fuel tank and portable construction allow the heater to be repositioned between suitable jobsites.
Use appropriate lifting and handling procedures when transporting the unit, especially when fuel remains in the tank.
Safety and Installation Requirements
The Flagro FVO-200RC42 is professional indirect-fired construction heating equipment.
Important installation requirements include:
- Provide adequate combustion air and ventilation.
- Use properly rated exhaust venting.
- Maintain required clearances from combustible materials.
- Use only manufacturer-approved fuels.
- Follow proper fuel filling and storage procedures.
- Connect to a compatible grounded electrical supply.
- Keep heated-air and return-air connections unobstructed.
- Use appropriately rated high-temperature ducting.
- Position the heater on a stable surface.
- Follow applicable local fire, mechanical, and fuel-storage regulations.
The operating manual specifies a 6-inch flue connection and requires compliant vent termination arrangements.
Indirect-fired heating separates normal combustion exhaust from the supplied heated air, but it does not eliminate the need for safe exhaust venting and ventilation.
Why Choose the Flagro FVO-200RC42?
The Flagro FVO-200RC42 combines 185,000 BTU/hr heating capacity, a 42-gallon integrated fuel tank, 2,600 CFM airflow, and return-air recirculation in one portable commercial heater.
Its extended-runtime configuration is particularly useful for construction sites and industrial facilities where frequent refueling is undesirable.
Compared with the standard FVO-200RC, it provides greater onboard fuel storage while retaining the same nominal heating capacity.
Compare Other Flagro Indirect-Fired Heaters
Climate Control Solutions supplies additional Flagro heating equipment:
- Flagro FVO-200RC: 185,000 BTU indirect-fired heater with a smaller 23-gallon tank.
- Flagro FVNP-200RC: 200,000 BTU propane/natural gas indirect-fired heater with recirculation.
- Flagro FVO-400RC: 390,000 BTU oil-fired indirect heater with 4,000 CFM airflow.
- Flagro FVO-400RCBT: 390,000 BTU bulk-tank indirect-fired heater with extended runtime.
Explore Commercial Heating Solutions
Frequently Asked Questions About the Flagro FVO-200RC42
How much heat does the Flagro FVO-200RC42 produce?
The heater provides 185,000 BTU/hr of heating capacity.
What fuel does the FVO-200RC42 use?
The heater operates on manufacturer-approved No. 1 or No. 2 fuel oil, diesel, or kerosene.
Can the FVO-200RC42 operate on propane or natural gas?
No. The FVO-200RC42 is an oil-fired heater. Flagro offers the separate FVNP-200RC for propane or natural gas applications.
How large is its fuel tank?
The FVO-200RC42 includes a built-in 42-gallon fuel tank.
How long can it operate on a full tank?
Flagro’s current product listing specifies approximately 35 hours. Actual runtime depends on the supplied configuration and operating conditions.
How much fuel does it consume?
The operating manual specifies approximately 1.30 gallons per hour.
How much airflow does it provide?
The unit delivers 2,600 CFM through a 1/2 HP blower motor.
Does it support air recirculation?
Yes. It includes a 12-inch return-air connection.
What electrical power is required?
The heater operates on 115V power with a manufacturer-listed 15-amp supply and approximately 6 amps of operating current.
Does it support a remote thermostat?
Yes. The heater supports an optional FV-THB remote thermostat.
What size ducting can be used?
Flagro lists single 12-inch or single 16-inch heated-air outlets and a 12-inch return-air inlet.
What is the difference between the FVO-200RC and FVO-200RC42?
Both deliver 185,000 BTU/hr. The FVO-200RC has a 23-gallon tank, while the FVO-200RC42 uses a larger 42-gallon tank for extended operation.
Request a Quote for the Flagro FVO-200RC42
Climate Control Solutions supplies Flagro indirect-fired heaters, portable construction heaters, and temporary commercial heating equipment nationwide.
Whether you need one FVO-200RC42 for a construction project or several units for an industrial facility, our team can assist with heating requirements, ducting, equipment selection, and freight arrangements.
Contact Climate Control Solutions for current pricing and availability.
Phone: (800) 633-8711
Email: [email protected]
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