Velit Portable Air Heater | 14,000 BTU 4000W

Overview

Portable 14,000 BTU fuel air heater in a crushproof, rainproof case. Runs on gasoline or diesel. Quick-connect fuel, air, and electrical. Same core heater as the Velit 4000W — built for mobility instead of permanent install.

Key features

• Quick-connect design — fuel line dry breaks, magnetic air duct, waterproof aviation plugs for electrical; breaks down without tools
• Crushproof rainproof case — built for overland and truck camping use; weather-sealed controller
• 14,000 BTU / 4,000W — modulates 5,600–14,000 BTU; 20–40W running draw at 12V; 120W startup
• Barometric altitude compensation — adjusts air-fuel ratio automatically; tested above 11,000 ft
• Three fuel supply options — Heater Only, + BYOC Kit (works with Rotopax), or + Detachable 1-Gal Can

Use cases

Overlanding, truck camping, hunting camps, and any scenario where a permanently installed heater isn't practical. The BYOC kit is ideal for builds already running Rotopax or NATO jerry cans. The detachable 1-gal can is suited for shorter trips or uses where you want self-contained fuel supply.

• Heat output: 5,600–14,000 BTU (4,000W peak)
• Operating power: 20–40W (running) / 120W (startup)
• Voltage: 12V DC
• Fuel consumption: 0.05–0.13 gal/hr
• Fuel type: Gasoline or Diesel (separate variants)
• Operating ambient: -40°F min / 75°F max
• Altitude rating: tested above 11,000 ft (barometric compensation)
• Safety: built-in CO sensor + flammable gas sensor with auto-shutoff
• Bluetooth range: 100 ft
• Connections: fuel dry-break, magnetic air duct, waterproof aviation plug (electrical)
• Case: crushproof, rainproof
• Warranty: 2-year limited

What's the difference between the Portable Heater and the Velit 4000W?

The core heater is the same — same BTU output, same barometric compensation, same CO sensor and glow plug. The difference is form factor: the Portable Heater is built into a crushproof rainproof case with quick-connect ports (dry-break fuel fitting, magnetic air duct, waterproof aviation plug). The 4000W uses a standard rubber fuel line and is designed for permanent installation in a van or RV. Choose the Portable if you need a heater that moves between vehicles or use cases.

What does the BYOC Kit include?

The BYOC (Bring Your Own Can) Kit adds a custom can cap with a fuel line dry-break and pre-assembled pickup line. You install the cap on your own fuel can — it's compatible with Rotopax, NATO cans, and most overland-style gas containers — and the dry-break connects directly to the heater's fuel inlet. No cutting or splicing required.

How does the Detachable One-Gallon Fuel Can work?

The detachable can has an attached dry-break fitting that snaps into the heater's fuel inlet. It holds 1 gallon of fuel, which at the heater's low output setting runs about 7–8 hours. The can attaches to and detaches from the heater body for easy transport. It does not need to be removed for operation — it rides with the heater as a self-contained unit.

Can I use this with my existing Rotopax?

Yes. The BYOC Kit's dry-break cap is compatible with Rotopax and most overland fuel containers. Install the cap on your Rotopax, and it becomes a ready fuel supply for the heater with a tool-free dry-break connection.

Does the gasoline version work differently from the diesel version?

The core heater mechanics are the same. The fuel tuning differs — the gasoline variant is calibrated for gasoline combustion, the diesel variant for diesel. Gasoline performs more reliably in extreme cold (diesel can gel below roughly -20°F). Choose the variant that matches the fuel you already carry.

What's in the box?

Heater unit (in crushproof case), Bluetooth thermostat with CO sensor, thermostat extension wire (10 ft), rubber fuel line (6 ft), power cable (6 ft), XT60-to-cigarette-lighter adapter, magnetic air duct (6 ft), Velcro tape, quick start guide, and full user manual. BYOC Kit or Detachable One-Gallon Fuel Can included with applicable bundle variants.