Flagro - Direct Fired Heaters

Your Guide to Flagro’s Direct-Fired Heaters

Flagro specializes in high-performance portable heating equipment for construction, commercial, and industrial applications. With over four decades of experience, the company produces a wide range of heaters—including direct fired, indirect fired, radiant, and electric models—designed for durability, efficiency, and safety. Built to operate on propane, natural gas, or oil, Flagro heaters are known for delivering rapid, even heating while minimizing energy consumption.

Why Choose Flagro Direct-Fired Heaters?

Flagro Direct-Fired Heaters are a top choice for efficient and powerful temporary heating solutions, offering high BTU output and rapid heat delivery, ideal for construction sites, warehouses, and outdoor events. They are known for their durability, portability, and ease of setup, with models that run on propane or natural gas. Designed with safety features like flame safeguards and overheat protection, Flagro heaters ensure reliable performance even in extreme conditions. These direct-fired heaters are available at our Canadian warehouse. You can also check them out below:

Flagro THC-175DF Dual Fuel Direct Fired Tent Heater

The Flagro THC-175DF Dual Fuel Direct Fired Tent Heater is a powerful 175,000 BTU ductable direct-fired heater designed for tent events and construction sites, offering dual-fuel flexibility with propane or natural gas. It features thermostatic control, quiet operation, and can function as both a heater and a fresh air circulator. With easy setup, multiple ducting options, and efficient fuel use, this heater ensures reliable, consistent heating in large spaces.

Flagro F-400T Propane/Natural Gas Direct-Fired Heater

The Flagro F-400T Propane/Natural Gas Direct-Fired Heater offers dual fuel capability with easy switching between propane and natural gas. Ideal for job sites, it features automatic temperature control, electronic direct spark ignition, and a rugged steel frame for durability and portability. With efficient air circulation (2,000–7,000 CFM) and minimal combustion emissions, it provides safe, clean, and reliable heat for construction and maintenance applications.

Flagro F-1000T Direct-Fired Dual-Fuel Construction Heater

The Flagro F-1000T Direct-Fired Dual-Fuel Construction Heater is a high-performance, direct-fired construction heater delivering 1,000,000 BTU/hr, ideal for large-scale heating in commercial and maintenance environments. With dual-fuel capability, users can easily switch between propane and natural gas, supported by a 100% flame safeguard system and direct spark ignition for safety and reliability. Designed for efficiency and portability, it features a 7,000 CFM fan, thermostat control, and minimal combustion impurities.

FAQs

1. Are direct-fired heaters safe for indoor use in large commercial facilities?

Yes, but only when properly ventilated. Direct-fired heaters introduce combustion byproducts directly into the heated space, so adequate ventilation is critical to ensure indoor air quality and safety. Facilities like warehouses and factories often use them with built-in fresh air intakes or exhaust systems to maintain safe CO and O₂ levels.

2. How do direct-fired heaters help in achieving rapid temperature rise in process heating?

Direct-fired heaters offer immediate combustion-to-process heat transfer, allowing them to ramp up temperatures quickly compared to systems that rely on intermediaries like steam or oil. This rapid heat delivery is essential for operations like drying, curing, and heating large volumes of air or product in a short time frame.

3. Can direct-fired heaters be customized for specific industrial applications?

Absolutely. Manufacturers often provide customized direct-fired heater designs tailored to an industry’s airflow, temperature range, and spatial constraints. Options include vertical or horizontal configurations, multiple burner setups, adjustable temperature controls, and integration with existing ductwork or automation systems.

4. What are the maintenance requirements for direct-fired heaters?

Maintenance typically involves regular inspection and cleaning of burners, fuel lines, ignition systems, and air filters. Because the combustion process happens within the same air stream used for heating, soot buildup and debris can affect performance and safety if not routinely addressed. Scheduled maintenance ensures optimal efficiency and compliance with safety standards.

5. How do direct-fired heaters impact product quality in industrial drying or curing processes?

Direct-fired heaters offer precise and uniform heat distribution, which helps maintain consistent drying or curing conditions, especially in industries like food processing, paint finishing, and textiles. This consistent heat ensures product integrity, minimizes defects, and reduces production waste.