Herman Nelson BT400 Series Indirect Fired 400K BTUs Heater
Meet the Herman Nelson BT400 Series—a lineup of powerful, field-proven indirect-fired heaters proudly made in Canada and built to perform in the toughest conditions. Choose between the BT 400 NEX-D (diesel) or the BT 400 NEX-G (gasoline) to get dependable heat wherever you need it. Both units are CSA certified and engineered to meet the demands of industrial, aviation, military, and construction environments.
⚠️ Important Pricing Update⚠️
Starting January 1, 2026, pricing for the Herman Nelson BT400 NEX-D and BT400 NEX-G heaters will increase by 3.5%.
Common Applications
The Herman Nelson BT400 Series is trusted in demanding industries where performance matters most:
- Aviation & Ground Support: Pre-heating aircraft engines, hangars, and equipment
- Construction Sites: Curing concrete, warming crews, and drying interiors
- Military Operations: Remote field bases and cold-weather missions
- Oil & Gas: Equipment thawing and remote camp heating
- Disaster Relief: Emergency heating in temporary shelters and response zones
- Mining & Exploration: Heating remote drill sites, thawing equipment, and maintaining safe working temperatures in extreme cold.
- Remote Camps & Northern Operations: Keeping essential buildings, sleeping quarters, and utility structures warm during severe winter conditions.
- Equipment Rentals & Industrial Service Providers: Reliable, high-demand heating units for customers who need dependable performance during winter peak season.
Key Capabilities
- Up to 400,000 BTU/h heating output
- Ductable up to 30 feet
- Rugged steel housing for extreme conditions
- Built-in safety features
- Fast setup and teardown
- Compatible with most remote power sources
✅ Pros
- High-capacity heat output
- Easy to deploy and service
- Built for extreme environments
- Operates Off-Grid – No Additional Power Required
- Dual fuel options to suit your needs
- Trusted by military and aviation crews worldwide
- Made In Canada
❌ Cons
- Not ideal for small job sites
- Higher upfront cost than entry-level heaters
- Requires trained personnel for maintenance
BT400 NEX-D
Indirect Fired Diesel Heater
400,000 BTU/h
| Fuel Type | DIESEL |
|---|---|
| Heating Capacity | 400,000 BTU/h |
| Maximum Air Delivery Rate | 2,100 CFM |
| Run Time | 14 Hours |
| Dimensions | 71” L x 50” W x 48” H |
BT400 NEX-G
Indirect Fired Gas Heater
400,000 BTU/h
| Fuel Type | GAS |
|---|---|
| Heating Capacity | 400,000 BTU/h |
| Maximum Air Delivery Rate | 2,100 CFM |
| Run Time | 8 Hours |
| Dimensions | 51” L x 20” W x 27” H |
