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Flagro THC-355CDF Direct Fired Heater – 330,000 BTU Heating with Thermostatic Control and Dual Fuel Capability

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The Flagro THC-355CDF Direct Fired Heater delivers 330,000 BTU of heat with thermostatic control, dual fuel capability, and flexible ducting. Ideal for large spaces, tents, and construction sites.

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Flagro THC-355CDF · 330,000 BTU Direct-Fired Dual-Fuel Heater

Box-style, ductable heater for tents, construction sites, and temporary structures — runs on Natural Gas or Propane.

The Flagro THC-355CDF delivers 330,000 BTU/hr of high-output direct-fired heat using
liquid propane (LP) or natural gas (NG). Thermostatic control, quiet operation, and flexible ducting make it ideal
for construction sites, tent events, and temporary enclosures that require fast, reliable, and evenly distributed heat.

Model: THC-355CDF · Category: Ductable Direct-Fired Heater



Key Features of the Flagro THC-355CDF

  • 330,000 BTU Heating Capacity — Powerful output for large spaces such as tent events and construction zones.
  • Thermostatic Control — Maintains precise temperature for comfort and fuel efficiency.
  • Dual Fuel Capability — Runs on LP (propane) or NG (natural gas) for maximum flexibility.
  • Quiet and Portable Design — Easy to set up and operate with minimal noise.
  • Flexible Ducting Options — Direct warm air exactly where it’s needed.

Flagro THC-355 Specifications

Heating Capacity 330,000 BTU/hr
CFM (Airflow) 2,600
Fuel Consumption LP: 16 lbs/hr · NG: 307 CFH
Fuel Source Dual Fuel (LP & NG)
Voltage / Amps 115 V / 15 A
Dimensions (L×W×H) 47″ × 32″ × 42″
Weight 345 lbs

Advanced Features of the THC-355CDF

  • Variable Heat Controls — Adjust output smoothly for maximum efficiency.
  • Fresh Air Circulation Mode — Switch between heat or fresh-air circulation at the touch of a switch.
  • Durable Construction — Designed for long-term reliability and quiet operation in harsh environments.

Applications of the Flagro THC-355CDF

  • Large Tent Events — Quiet, comfortable heat for temporary venues.
  • Construction Sites — Provides powerful, direct heat indoors or outdoors.
  • Temporary Structures — Ideal for warehouses, workshops, and restoration projects.

Why Choose the Flagro THC-355CDF?

  • Energy Efficiency — Thermostat and variable heat controls reduce fuel consumption.
  • Dual-Fuel Flexibility — Switch between LP and NG quickly on site.
  • Reliable Performance — Proven Flagro design built for industrial and rental applications.

Order the Flagro THC-355CDF Today

For pricing or availability, contact Climate Control Solutions at
(800) 633-8711 or email
[email protected].
Our team can help you select fuel setup and duct configuration for your application.

Note: Verify fuel supply, pressure, and ventilation per local codes before operation.


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Flagro THC-355CDF Direct Fired Heater with 330,000 BTU capacity and dual fuel capability
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Flagro THC-355CDF Direct Fired Heater – 330,000 BTU Heating with Thermostatic Control and Dual Fuel Capability

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