390,000 BTU Frost Fighter IDH400QR – Return Air

The Frost Fighter IDH400QR is a high-capacity, indirect-fired heater with a 390,000 BTU output, equipped with return air capability. This feature allows it to recirculate warm air, improving heating efficiency for large enclosed areas. It’s commonly used in construction, industrial spaces, event tents, and temporary shelters where powerful and clean, fume-free heat is necessary.

Specifications

1. Heating Capacity:
   • BTU Output: 390,000 BTU/hr
2. Fuel and Power Requirements:
   • Fuel Type: Propane or natural gas (depending on model)
   • Fuel Consumption:
     • 7-14 W.C. Propane or Natural Gas.
   • Power Requirements: 120V or 240V for blower and ignition systems, depending on model
3. Airflow:
   • CFM (Cubic Feet per Minute): Approximately 3,200 CFM, providing substantial air movement for even heat distribution
   • Return Air Capability: Equipped with a return air option to recirculate heated air, enhancing efficiency and maintaining consistent warmth
4. Heating Area:
   • Suitable for heating spaces up to 10,000–12,000 square feet, depending on insulation and environmental conditions
5. Physical Dimensions and Weight:
   • Dimensions: Roughly 75 inches (L) x 36 inches (W) x 55 inches (H)
   • Weight: Approximately 420 lbs.
6. Ducting Capability:
   • Supports both supply and return ducting, with 16-inch ducts that can extend up to 50 feet, providing flexibility in directing warm air across large areas.

Applications

• Construction and Industrial Heating: Ideal for large job sites, workshops, and warehouses needing reliable heat.
• Event and Tent Heating: Provides clean, safe heat for large tents, pavilions, and temporary event structures.
• Temporary Shelter Heating: Suitable for emergency shelters and other temporary structures in colder climates.
• Agricultural and Greenhouse Heating: Useful for maintaining stable temperatures in greenhouses and agricultural buildings.

The Frost Fighter IDH400QR delivers powerful, efficient heating with return air functionality to maximize fuel economy and temperature consistency. It is an effective solution for large-scale heating needs in both temporary and semi-permanent spaces.