390,000 BTU • Indirect Fired • Oil Heater • Built-In Fuel Tank
Flagro Indirect Fired Oil Heater FVO-400
The Flagro Indirect Fired Oil Heater FVO-400 is a high-capacity industrial heating solution designed to deliver clean, dry heat for large-scale applications. Utilizing indirect-fired technology, this unit ensures combustion gases are fully separated from the heated air stream, making it ideal for enclosed environments where air quality and safety are critical. With a powerful output of up to 390,000 BTU and a built-in fuel tank for extended operation, the FVO-400 is engineered for reliability in demanding jobsite conditions.
Flagro Indirect Fired Oil Heater FVO-400 Applications
- Large construction sites and winter jobsite heating
- Warehouses, factories, and industrial facilities
- Event tents and temporary structures
- Disaster relief and emergency heating operations
- Remote locations requiring self-contained fuel systems
Ideal for large enclosed spaces that require powerful, clean, and reliable heated air distribution.
Flagro Indirect Fired Oil Heater FVO-400 Specifications
| Heating Capacity |
Up to 390,000 BTU/H |
| Fuel Type |
Oil (Diesel/Kerosene Compatible) |
| Fuel Tank Capacity / Run Time |
42 US Gallons / Up to 14 Hours |
| Power Requirements |
115V / 15 AMPS (10.5 AMP Draw) |
| Fan Motor / Airflow |
3/4 HP / 2,500 CFM |
| Heat Exchanger |
16 Gauge 304 Stainless Steel |
| Ignition |
Direct Spark |
| Nozzle Size / Pump Pressure |
2.00 x 60B / 170 PSI |
| Air Outlet |
2 × 12" Dia. or 1 × 16" Dia. |
| Ducting Capability |
Up to 50 ft |
| Dimensions |
70" × 29" × 52" |
| Weight |
450 lbs |
| Wheels |
2 × 16" High Density Flat-Free Wheels |
| Approvals |
cETLus |
Flagro Indirect Fired Oil Heater FVO-400 Performance & Construction
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Indirect fired system ensures clean, breathable heated air with complete separation from combustion gases.
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Proven Riello burner technology with integrated nozzle pre-heater enables reliable cold weather start-up and improved fuel atomization.
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Updated low-temperature fuel pump maintains consistent performance in extreme conditions.
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304 stainless steel heat exchanger provides long-lasting durability and resistance to corrosion.
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Smart power indicator control confirms proper electrical input, reducing setup issues and downtime.
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Built-in fuel tank allows extended operation without the need for external fuel supply systems.
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High-density flat-free wheels ensure easy transport across rough jobsite terrain.
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High airflow system delivers 2,500 CFM for effective heat distribution across large areas.
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Flexible ducting options support multiple outlet configurations for targeted heating.
Why Choose the Flagro Indirect Fired Oil Heater FVO-400
- Up to 390,000 BTU for large-scale heating performance.
- Clean, indirect-fired heat safe for enclosed environments.
- Self-contained unit with built-in fuel tank for extended runtime.
- Cold-weather optimized burner system for reliable ignition.
- Durable construction designed for demanding industrial use.
The Flagro Indirect Fired Oil Heater FVO-400 is built for professionals who require powerful, clean, and dependable heat in large or challenging environments, delivering performance and durability you can rely on.