HOT ! Heatstar HSP400ID-G Pro-Series Propane/Natural Gas Indirect Fired Heater - 400,000 BTU/HR, UL Certified, Dual Fuel, for Industrial & Rental Use

Heatstar HSP400ID-G 400,000 BTU Indirect Fired Propane/Natural Gas Heater

The Heatstar HSP400ID-G Pro-Series delivers powerful, clean heating with dual-fuel flexibility that adapts to your fuel availability and budget. This UL-certified indirect-fired heater produces 400,000 BTU/HR of fume-free heat, making it the reliable choice for construction sites, industrial facilities, and rental applications where air quality and safety matter.

Key Features of the Heatstar HSP400ID-G Indirect Heater

Dual-Fuel Flexibility

Switch between propane and natural gas based on availability and cost, ensuring your project never stops due to fuel shortages.

Clean, Safe Heat for Enclosed Spaces

Advanced heat exchanger technology separates combustion gases from heated air, delivering 100% clean, breathable air perfect for occupied spaces and enclosed work areas.

High-Performance Airflow

Powerful fans generate 4,032 CFM with excellent static pressure, enabling heat distribution through ducting up to 100 feet.

Industrial-Grade Construction

Built with a heavy-duty frame, stainless steel combustion chamber, and pneumatic wheels for reliable performance and easy jobsite mobility.

UL Certified Safety

Electronic flame control, water-resistant control box, and automatic safety devices ensure compliance with North American safety standards.

Specifications

Feature	Specification
Model	HSP400ID-G
Heat Output	399,000 BTU/HR
Heating Area	Up to 9,875 sq ft
Air Volume	4,032 CFM
Fuel Type	Propane (LP) or Natural Gas (NG)
Electrical	120V/60Hz, 13 Amp
Ducting	Standard dual 12\" adapters, 100 ft max length
Dimensions (L×W×H)	68\" × 27\" × 60\"
Weight	473 lbs
Wheels	Pneumatic for easy transport
Certification	UL Listed
Warranty	1-Year Limited

Fuel Flexibility Advantages

Natural Gas Benefits:

• Lower operating costs for permanent installations
  


• Continuous supply eliminates refueling
  


• Environmentally cleaner burning
  


• Ideal for facilities with existing gas infrastructure
  

Propane Benefits:

• Complete portability for remote locations
  


• Independent of utility infrastructure
  


• Consistent supply regardless of location
  


• Higher BTU content per unit volume
  

Compatible Accessories

Temperature Control Options:

• 
  Digital Thermostat (F105106) - Precise temperature management with 33-foot cable
  


• 
  Analog Thermostat (F105018) - Simple, reliable temperature control
  

Heat Distribution:

• 
  Flexible Heat Ducts - 25-foot high-temperature ducting for extended reach
  


• 
  Air Recycle System (F105127) - Improve fuel efficiency by up to 30%
  

Exhaust & Safety:

• 
  Chimney Pipe - 6\" diameter exhaust venting
  


• 
  High Wind Vent Cap - Prevents backdraft in windy conditions
  

Best Applications

Construction Sites

• Concrete curing in cold weather
  


• Worker comfort in temporary structures
  


• Paint booth applications requiring clean air
  


• Multi-story building heating through ducting
  

Industrial Facilities

• Warehouse heating during maintenance shutdowns
  


• Equipment storage building climate control
  


• Emergency backup heating systems
  


• Process area heating where air quality matters
  

Event & Entertainment

• Wedding tent heating with clean air output
  


• Festival venue climate control
  


• Trade show booth heating
  


• Outdoor event weather protection
  

Agricultural Operations

• Livestock facility heating
  


• Grain drying operations
  


• Greenhouse supplemental heat
  


• Equipment barn heating

Order Your Heatstar HSP400ID-G Heater Today

Order today from Cleanflow — trusted across Canada & the USA for supplying municipalities, contractors, and industrial crews with professional-grade heating solutions.

Explore our complete Heatstar indirect-fired heater collection for different BTU ranges and fuel options.

Questions about installation or operation? Our technical experts are available at 1-866-335-1078 (Canada) or 204-888-8469 (USA).

FAQs

What\'s the difference between this model and direct-fired heaters?

The HSP400ID-G uses indirect heating technology, separating combustion gases from heated air. This delivers 100% clean, fume-free air suitable for enclosed or occupied spaces, unlike direct-fired units that mix exhaust with heated air.

Can I use both propane and natural gas?

Yes! The dual-fuel design allows you to switch between propane (LP) and natural gas (NG) based on availability and cost. Simply adjust the gas controls - no additional conversion kit required.

How much area will this heater cover?

The HSP400ID-G effectively heats up to 9,875 square feet in average conditions. For precise sizing based on your specific application, use our BTU Calculator.

Is this heater suitable for indoor use?

Absolutely. The indirect-fired design makes it safe for use in enclosed spaces, including warehouses, event tents, and construction buildings, as long as proper exhaust venting is installed.

What ducting length is supported?

The powerful 4,032 CFM airflow supports ducting up to 100 feet, allowing heat distribution across large areas or multiple zones while maintaining effective heating performance.

What is the most efficient type of propane heater?

The most efficient propane heater depends on your application. For enclosed spaces or occupied areas, indirect-fired propane heaters like the Heatstar HSP400ID-G are the best choice because they deliver 100% clean, fume-free heat. Direct-fired heaters are more fuel-efficient in open, well-ventilated job sites, but are not safe for enclosed environments.

What’s the difference between propane and natural gas heaters?

Propane and natural gas heaters both provide powerful heat, but they differ in performance and environmental impact:

• 
  Propane: Portable, produces slightly fewer pollutants, and offers higher BTU content per unit volume, making it more efficient for remote or temporary sites.


• 
  Natural Gas: Lower cost when connected to a utility line and offers an endless fuel supply, but emits more methane than propane, making it slightly less eco-friendly.

👉 The Heatstar HSP400ID-G gives you the flexibility of both fuel types in one heater, letting you choose the most efficient and cost-effective option for your project.