The Heat Wagon S405 is a powerful 400,000 BTU direct‑fired heater engineered for fast, efficient heating in large, open or well‑ventilated spaces. Designed to operate on liquid propane (LP) or natural gas (NG), the S405 delivers high‑output heat for demanding applications such as construction sites, industrial facilities, warehouses, tents, and temporary enclosures.

Specifications may vary by brand. The details provided are accurate for the model shown above. For complete and up-to-date information, please review the manufacturer’s official specifications.
Models and brands may vary by location and availability.

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  • Models and brands may vary by location and availability.
  • Specifications and features are accurate for the model shown above but may differ across brands or regions.
  • For the most up-to-date details, refer to the manufacturer’s official specifications or contact our support team for assistance.

We strive to provide accurate product information to help you make informed purchasing decisions. If you have any questions, reach out to us before placing your order.

400,000 BTU heating capacity for large‑area coverage
Direct‑fired design delivers fast, efficient heat output
LP or Natural Gas operation for fuel flexibility
Ideal for open or well‑ventilated spaces
Rugged construction designed for job-site and industrial environments
Portable configuration for temporary and mobile heating needs
Reliable ignition and operation for demanding conditions
Heater Type

Direct‑Fired

Fuel Type

Liquid Propane (LP) / Natural Gas (NG)

Heat Output

400,000 BTU

Application

Construction, industrial, warehouse, tent heating

Use Environment

Open or well‑ventilated areas

Operation

Temporary / portable heating

Construction

Job-site ready, heavy‑duty design

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