✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
Flagro FVNP-400RC Indirect Fired Heater – Powerful 390,000 BTU Dual-Fuel Performance with Recirculating Hood
When performance, safety, and efficiency matter most, the Flagro FVNP-400RC Indirect Fired Heater delivers. Engineered for tough industrial and commercial job sites, this powerful 390,000 BTU dual-fuel heater combines advanced Riello burner technology, rugged stainless steel construction, and quiet, ductable airflow—making it the ideal solution for clean, high-capacity heat in cold, enclosed, or sensitive environments.
Built by Flagro Industries, a trusted name in jobsite heating, the FVNP-400RC 390,000 BTU indirect-fired dual-fuel heater is optimized for reliability, mobility, and safety. Whether you're heating warehouses, supporting disaster relief, or powering construction zones, this unit offers the flexibility to run on propane or natural gas—no conversion kits or downtime required.
Key Features of the Flagro FVNP-400RC Indirect-Fired Heater
Dual-Fuel Compatibility
Easily switch between propane and natural gas using the built-in fuel selector—no tools or conversion kits required. Get fuel flexibility on the go.
Advanced Riello Burner Technology
Features a nozzle pre-heater and low-temperature fuel pump for reliable cold-weather starts. Riello burners are known for long life and highly efficient combustion.
Powerful 390,000 BTU Heat Output
The FVNP-400RC delivers high-capacity heating, drying, and dehumidifying for large projects and temporary structures.
Stainless Steel Heat Exchanger
Constructed from 16-gauge 304 stainless steel for superior corrosion resistance and long service life.
Backward-Incline Blower Fan – 4,000 CFM
Ductable up to 150 ft, this quiet fan moves large air volumes efficiently with only 10.5 amps at 115 V / 15 A.
Recirculating Hood for Maximum Efficiency
Reuses return air from your space for faster heat-up and better fuel economy.
Smart Power Control with Volt Meter
Onboard indicator and voltmeter ensure safe operation—ideal for generator or variable site power.
Flat-Free High-Density Wheels
Durable 16″ flat-free wheels provide smooth mobility on rough or uneven ground.
Certified for Jobsite Safety
cETLus approved and built to North American standards. Safe for enclosed or semi-enclosed areas when properly ventilated.
Flagro FVNP-400RC Heater Specifications
| Feature | Details |
|---|---|
| Model | Flagro FVNP-400RC |
| Heat Capacity | 390,000 BTU/hr |
| Fuel Type | Propane or Natural Gas |
| Propane Consumption | 18.5 lbs/hr |
| Natural Gas Consumption | 380 CFH |
| Manifold Pressure | Propane 1.5″ W.C. / Natural Gas 2.0″ W.C. |
| Ignition | Direct Spark |
| Fan Motor | 1 HP |
| Air Circulation | 4,000 CFM |
| Air Outlet | 2 × 12″ or 1 × 16″ diameter |
| Air Inlet | 1 × 16″ diameter |
| Power Requirements | 115 V / 15 A / 60 Hz (10.5 A draw) |
| Dimensions (L × W × H) | 70″ × 29″ × 47″ |
| Weight | 365 lbs |
| Wheels | 2 × 16″ flat-free high-density |
| Certifications | cETLus |
Included and Optional Accessories
Included:
- Built-in dual-fuel selector
- Smart volt meter display
Optional Accessories:
- Remote thermostat – FV-THB
- Outlet ducting – FV-HD12 (12″ × 12 ft) or FV-HDG16 (16″ × 25 ft)
- Return ducting – FV-HDV16 (16″ × 12 ft)
These accessories enable the Flagro FVNP-400RC to provide customized, safe, and efficient heating in temporary or mobile setups.
Applications
- Construction and infrastructure projects
- Warehouses, plants, and temporary buildings
- Disaster relief and emergency heating
- Oilfield, mining, and utility operations
- Military, municipal, and government sites
With 390,000 BTU of heat output, portability, and a safe ducted design, the Flagro FVNP-400RC is ideal for large-scale operations that demand high-capacity clean heat.
Safety Guidelines for Operation
- Operate only in well-ventilated or semi-open areas.
- Maintain clearances: 10 ft (front), 2 ft (rear/sides), 3 ft (above).
- Not for residential or fully enclosed indoor use.
- Set on a level, stable surface during operation.
- Inspect hoses, ignition, and connections regularly.
- Use appropriate regulators and fuel supply for your setup.
Order the Flagro FVNP-400RC Today
When temperatures drop and dependable performance matters most, trust the Flagro FVNP-400RC from Cleanflow—Canada’s trusted source for industrial and commercial heating solutions. This powerful 390,000 BTU indirect-fired heater offers dual-fuel flexibility, rugged construction, and safe, clean, ductable heat for challenging worksites and large spaces.
Whether you’re heating a construction site, warehouse, or emergency shelter, Cleanflow provides high-performance indirect-fired heaters from Flagro—engineered for safety, efficiency, and reliability in harsh conditions.
Frequently Asked Questions
Can I duct the air output from the Flagro FVNP-400RC?
Yes. The heater supports ducting up to 150 ft with multiple inlet and outlet options using 12″ and 16″ diameter connectors.
Is the FVNP-400RC noisy during operation?
No. It uses a backward-inclined blower that delivers high CFM airflow quietly and efficiently, ideal for industrial and event applications.
What makes indirect-fired heaters like the Flagro FVNP-400 safer than direct-fired units?
Indirect-fired heaters transfer heat through a stainless-steel heat exchanger, preventing combustion byproducts from entering the heated space—making them safer for enclosed environments.
Can I switch fuel types without tools or kits?
Yes. The FVNP-400RC includes a built-in fuel selector that allows quick switching between propane and natural gas without conversion hardware.
How do I know if 390,000 BTU/hr is enough for my space?
Use the BTU Calculator to estimate your heating requirements based on square footage, insulation, and climate. This 390,000 BTU model heats large areas efficiently and cleanly.
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
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