1 (800) 486-4328 // 1 (204) 633-1999
Aerotech Herman Nelson Heaters Intl. Inc.

Featured Heater

3-in-1 Herman Nelson Recirculating Heater

588,000 BTU/h

RUN TIME: 19 Hours at 100% Load

Manuals & Technical Documentation

Looking for troubleshooting help? Start with the Interactive Guide above. For full manuals, download your model below.

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🔧 Interactive Troubleshooting Guide – BT400 NEX-D (Diesel)

Having an issue in the field? Our interactive PDF guide helps you diagnose common BT400 NEX-D problems step-by-step — fast.

What You’ll Find Inside

Opens a guide overview page with download instructions.

🔶 BT400 NEX Series Manuals

Installation, operation, and service documentation for BT400 NEX diesel and gas heaters used in aviation, construction, and industrial applications.

BT400 NEX-D

PDF Manual – (Non-Interactive)

BT-400NEX-G2

PDF Manual – (Non-Interactive)

BT400-45

PDF Manual – (Non-Interactive)

BT-400NEX-G2

PDF Manual – (Non-Interactive)

BT400-46

PDF Manual – (Non-Interactive)

🔶 HPL Series Manuals

Manuals for the HPL all-in-one heater, power, and lighting unit, including operating instructions and technical specifications.

HPL 600D7

PDF Manual – (Non-Interactive)

HPL 600D7

PDF Manual – (Non-Interactive)

🔶 BT Blaze Heater Manuals

Documentation for BT Blaze indirect recirculating heaters, covering setup, safe operation, and maintenance.

BT-Blaze 600Turbo

PDF Manual – (Non-Interactive)

BT-Blaze 400Turbo

PDF Manual – (Non-Interactive)

BT-Blaze 200DG

PDF Manual – (Non-Interactive)

🔶 Frost Fighter Heater Manuals

Operating and service manuals for Frost Fighter indirect-fired heaters used in construction and cold-weather job sites.

Frost Fighter IDF 350 OIL/DIESEL

PDF Manual – (Non-Interactive)

Frost Fighter IDF 350 LP/NG

PDF Manual – (Non-Interactive)

Frost Fighter IDF 500 OIL/DIESEL

PDF Manual – (Non-Interactive)

Frost Fighter IDF 500 LP/NG

PDF Manual – (Non-Interactive)

Frost Fighter IHS 500

PDF Manual – (Non-Interactive)

Frost Fighter IHS 700

PDF Manual – (Non-Interactive)

Frost Fighter IHS 1250

PDF Manual – (Non-Interactive)

FLAGRO FVNP-400

PDF Manual – (Non-Interactive)

🔶 Flagro Heater Manuals

Manuals for Flagro portable heaters, including operation, maintenance, and safety guidelines.

FLAGRO FVO-400

PDF Manual – (Non-Interactive)

FLAGRO FVO-200

PDF Manual – (Non-Interactive)

🔶 Flameless Heater Manuals

Documentation for legacy Flameless heater models, provided for reference and ongoing field support.

Flameless 700K

PDF Manual – (Non-Interactive)

Flameless 1.2M

PDF Manual – (Non-Interactive)

Need help identifying your model? Our support team is happy to help.

2025 - 2026 Holiday Business Hours

Happy holidays
  • December 24
    Open 8:00 AM – 12:00 PM CDT
  • December 25
    Closed
  • December 26
    Closed
  • December 29
    Open 8:00 AM – 4:30 PM CDT
  • December 30
    Open 8:00 AM – 4:30 PM CDT
  • December 31
    Open 8:00 AM – 12:00 PM CDT
  • January 1
    Closed
  • January 2
    Open 8:00 AM – 4:30 PM CDT

Need immediate assistance while we’re closed?
Call (204) 995-2999.

Otherwise, contact us during business hours:
1 (800) 486-4328  //  1 (204) 633-1999
Sales@hermannelson.com

Regular Business Hours: Monday – Friday, 8:00 AM – 4:30 PM CDT

Your operations don’t stop — neither do we. See you in the new year.

Indirect Fired Heater Manufacturer

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