Flagro Direct-fired Heaters for 2025-2026
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Dual Fuel: Propane or Natural Gas
Three sizes: 400K BTU / 2K CFM, 1000K BTU / 7K CFM, 1500K BTU / 7K CFM
See specs in description below for electrial, size, etc.
Can be ducted intake and delivery
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See our other Direct-Fired Portable Heaters.
Flagro Direct-fired Heater, dual-fuel for 2025- 2026
Propane or Natual Gas Direct-Fired Heaters are most often used in open areas where there is a supply of fresh air. Direct-Fired means the same air that is used in combustion is the air that is delivered. CO2, monoxide, and other gasses are in the delivery air. Indirect-fired heaters have two air intakes; one for the combustion chamber (the burner), and the other for the fan-powered system that blows unheated air over the burner jacket, delivering clean breathable air. Direct fired heaters are used to heat construction areas, bridgework, warehouse bays, containers for making pallets bug-free, etc.
– Engineered for easy operation and minimal servicing
– Electronic direct spark ignition control
– Equipped with 100% flame safeguard system
– Designed for commercial applications
– Just turn the fuel selector valve to change the fuel supply
– Temporary heat for construction and maintenance
– Environmentally friendly with minimal combustion impurities
Key Features
- High Output — 400,000 BTUH quickly warms expansive areas like warehouses and construction sites.
- Dual-Fuel Flexibility — easy selector valve for propane or natural gas.
- Thermostat Control — on-unit thermostat for steady, efficient heat.
- Wheel Kit Mobility — rugged wheels and handle simplify repositioning across the site.
- Safety First — 100% flame safeguard with automatic shutoff for peace of mind.
- Industrial Build — durable construction for tough, all-weather job sites.
Flagro 400K BTU Direct Fired Heater – Propane or Natural Gas F-400T
– Fuel: Propane or Natural Ga
– 14W.C. Inlet Pressure
– CFM 2,500
– BTU/hr 400,000
– 120 Volt, 60 Hertz,
– 12 Amp Single Phase Power Supply
– 48 Long x 22 Wide x 24 High
– Air outlet: 15 Diameter
– Electronic Direct Spark Ignition Control
– 100% flame safeguard
– 90 lbs
FLAGRO 1,000,000 BTU Direct-fired Dual-fuel Heater FLAG-F-100T
Specifications:
– Fuel: Propane or Natural Gas
– BTU/hr: 1,500,000 CFM: 7,000
– Heavy Duty 8″ Wheels, Rugged steel frame
– 14″W.C. Inlet Pressure
– 120 Volt, 60 Hertz, 20 Amp Power Supply
– 61″ Long x 29″ Wide x 38″ High; 15″
– Air outlet: 26″ Diameter
– Heat Output: 1,000,000 BTU
– Air Flow: 7000 CFM; 1HP Fan Motor
– Propane Fuel Consumption: 46 lbs/hr
– Natural Gas Consumption: 952 CFH Nat. Gas.
– Weight: 356 lbs
FLAGRO 1,500,000 BTU Direct-fired Dual-fuel Heater FLAG-F-1500T
Specifications:
– Fuel: Propane or Natural Gas
– BTU/hr: 1,500,000 CFM: 7,000
– Inlet Pressure Propane: 11 in W.C.
– Inlet Pressure Natural Gas: 9 in W.C.
– Voltage: 115 V
– Frequency: 60 Hz
– Phase: Single Phase
– Current: 20 amps
– Fan Motor Capacity: 1 hp
– Air Circulation: 7,000 CFM
– Fuel Consumption Propane: 16.24 GPH
– Fuel Consumption Natural Gas: 1,428 CFH
– Ignition: Direct Spark Control
– Thermostat Control: Yes
– Length: 61 in; Width: 29 in; Height: 38 in
– Air Outlet Diameter: 26 in
– Foot Note: Regulator sizing assumes job site inlet pressure of 5-10 PSI. Custom hose assemblies are available upon request.
– Weight: 356 lbs
251216
| Weight | 550 lbs |
|---|---|
| BTU Model | FLAG-F-400T 400,000 BTU, FLAG-F-1000T 1,000,000 BTU, FLAG-F-1500T 1,500,000 BTU |

