Image 1 of 1
Image 1 of 1
Image 1 of 1
Image 1 of 1
Manufacturer: Flagro USA
Models Supported: HCI-400D, HCI-400DBT, HCI-400G
The Flagro 400K Indirect Fired Heater delivers high-capacity, clean, and dependable heat for temporary HVAC applications across construction, industrial facilities, large events, emergency response, and cold-weather projects. With 400,000 BTU/hr output, 4,000 CFM airflow, and the ability to duct heat up to 150 feet, the HCI-400 series provides powerful, efficient heating while keeping combustion byproducts outside the conditioned space.
Available in diesel, extended-run diesel, or dual-fuel propane/natural gas configurations, these heaters are built for rugged jobsite performance and optimal safety with stainless-steel heat exchangers, backward-incline direct-drive blowers, and optional stackable frames.
400,000 BTU/hr indirect-fired heat output
4,000 CFM airflow (ductable to 150 ft)
115V / 15A power requirement
16-gauge 304 stainless-steel heat exchanger
Multiple fuel options: diesel, extended-capacity diesel, or dual-fuel (LP/NG)
Backward-incline direct-drive blower for efficient, consistent airflow
Remote thermostat with 25' cord included
Stackable frame on select models for transport & storage
Multiple air outlet configurations: (2) 12", (1) 16", (1) 20"
Return air inlet: 16"
(From model table on page 1)
BTU/hr: 400,000
CFM: 4,000
Ducting: Up to 150 ft
Heat Exchanger: 16 GA 304 stainless steel
Burner Options: Riello or Beckett
Blower: Backward-incline, direct-drive
Frame: Stackable on HCI-400D & HCI-400G
Outlets: (2) × 12", (1) × 16", (1) × 20"
Return Air Inlet: 16"
Power Requirement: 115V, 15A
HCI-400D: 74" × 29" × 60", 465 lbs
HCI-400DBT: 71" × 33" × 71", 850 lbs
HCI-400G: 74" × 29" × 60", 380 lbs
Construction heating & curing
Industrial and warehouse heating
Tent heating for events
Emergency and disaster-response HVAC
Temporary heating for facilities under renovation
Oil & gas, agriculture, and remote work sites
High-output, clean heat without introducing combustion fumes indoors
Multiple fuel options for site flexibility
Rugged, jobsite-ready construction
Long runtime options with extended-tank model
Easy ducting for targeted or distributed heat
Reliable burner systems and stainless heat exchanger ensure long service life
Download the Product Spec Sheet or contact our team for availability, fuel-type selection, and HVAC solutions tailored to your project needs.
Manufacturer: Flagro USA
Models Supported: HCI-400D, HCI-400DBT, HCI-400G
The Flagro 400K Indirect Fired Heater delivers high-capacity, clean, and dependable heat for temporary HVAC applications across construction, industrial facilities, large events, emergency response, and cold-weather projects. With 400,000 BTU/hr output, 4,000 CFM airflow, and the ability to duct heat up to 150 feet, the HCI-400 series provides powerful, efficient heating while keeping combustion byproducts outside the conditioned space.
Available in diesel, extended-run diesel, or dual-fuel propane/natural gas configurations, these heaters are built for rugged jobsite performance and optimal safety with stainless-steel heat exchangers, backward-incline direct-drive blowers, and optional stackable frames.
400,000 BTU/hr indirect-fired heat output
4,000 CFM airflow (ductable to 150 ft)
115V / 15A power requirement
16-gauge 304 stainless-steel heat exchanger
Multiple fuel options: diesel, extended-capacity diesel, or dual-fuel (LP/NG)
Backward-incline direct-drive blower for efficient, consistent airflow
Remote thermostat with 25' cord included
Stackable frame on select models for transport & storage
Multiple air outlet configurations: (2) 12", (1) 16", (1) 20"
Return air inlet: 16"
(From model table on page 1)
BTU/hr: 400,000
CFM: 4,000
Ducting: Up to 150 ft
Heat Exchanger: 16 GA 304 stainless steel
Burner Options: Riello or Beckett
Blower: Backward-incline, direct-drive
Frame: Stackable on HCI-400D & HCI-400G
Outlets: (2) × 12", (1) × 16", (1) × 20"
Return Air Inlet: 16"
Power Requirement: 115V, 15A
HCI-400D: 74" × 29" × 60", 465 lbs
HCI-400DBT: 71" × 33" × 71", 850 lbs
HCI-400G: 74" × 29" × 60", 380 lbs
Construction heating & curing
Industrial and warehouse heating
Tent heating for events
Emergency and disaster-response HVAC
Temporary heating for facilities under renovation
Oil & gas, agriculture, and remote work sites
High-output, clean heat without introducing combustion fumes indoors
Multiple fuel options for site flexibility
Rugged, jobsite-ready construction
Long runtime options with extended-tank model
Easy ducting for targeted or distributed heat
Reliable burner systems and stainless heat exchanger ensure long service life
Download the Product Spec Sheet or contact our team for availability, fuel-type selection, and HVAC solutions tailored to your project needs.
