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HeatStar Indirect Fired Heater — 400,000 BTU/hr | Natural Gas / Propane

🏗 Contractor Grade 🏢 Rental Fleet Ready 🌬 Clean Indirect Heat

✅ OCCUPIED-SPACE SAFE:
This is an indirect fired heater. Combustion exhaust is fully isolated from the heated air stream via an internal heat exchanger, making it suitable for indoor and occupied spaces when properly vented.

Power Requirement: 120V / Single Phase — Optional Remote Thermostat

The HeatStar HSP400ID-G Indirect Fired Heater delivers 400,000 BTU/hr of clean, safe heat for larger occupied spaces requiring high output. Designed for professional, rental, and contractor use, this unit combines robust construction, extended runtime, and proven indirect-fired technology for reliable performance in demanding environments.

🔥 400,000 BTU/hr Output 🌬 Indirect Fired — Clean Heat 🌀 High-Static Airflow 🛢 100 Lb Propane or Direct NG 🚚 Portable, Outdoor Placement 🏗 Ductable Clean Air Delivery

High-Capacity Indirect Heat for Occupied & Ventilated Spaces

The HSP400ID-G uses a stainless steel heat exchanger to isolate combustion gases from the heated air stream, allowing the heater to be placed outdoors while delivering warm, clean air indoors. Powerful fans enable flexible ducting up to 100 ft, and optional thermostats maintain consistent temperature for controlled environments. Heavy-duty construction ensures reliability with minimal maintenance—only one annual service is recommended.

Why Choose the HeatStar HSP400ID-G

🌬 Clean Indirect Heat

  • Heat exchanger isolates combustion exhaust
  • Approved for occupied and enclosed spaces
  • Ideal for shops, tents, and event spaces

⛽ Dual-Fuel Flexibility

  • Runs on direct natural gas or 100 Lb propane tanks
  • Continuous ignition with high reliability
  • Extended runtime and minimal maintenance

🛠 Durable Construction

  • Stainless steel combustion chamber and heat exchanger
  • Heavy-duty frame with lift bracket for transport
  • Water-resistant flame control box and automatic safety devices

Ideal Applications

🏢 Occupied Workspaces

Safe, fume-free heat for indoor or partially enclosed industrial spaces.

🎪 Tents & Event Areas

Indirect heat for temporary structures and exhibition halls.

🚧 Construction & Maintenance Sites

Clean heat for temporary buildings, shops, or partially enclosed jobsite areas.

Specifications

Heating Capacity 400,000 BTU/hr
Estimated Coverage Area Up to 9,875 sq. ft.
Fuel Type Natural Gas or Propane
Fuel Connection / Tank Direct NG line or 100 Lb Propane tanks
Electrical Requirements 120V / 60Hz / 13A
Airflow High-static indirect airflow
Ducting Capability Up to 100 ft (Dual 12" or Single 16")
Heat Exchanger Stainless Steel (Indirect Fired)
Ignition Type Continuous
Mobility Pneumatic wheels / heavy-duty frame with lift bracket
Unit Dimensions (L×W×H) 68" × 27" × 60"
Unit Weight 473 lbs
Thermostat Options F105108 Analog (33') / F105106 Digital (33')
Warranty 1-Year Limited

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