VELIT 4000P Diesel Air Heater - 14000BTU 4000W - 12V

12V Diesel Air Heater for Mobile and Off-Grid Heating

The Velit 4000P Diesel Air Heater is a 12V, fuel-fired heating system designed to provide reliable cabin heat in vans, trucks, boats, trailers, campers, and off-grid equipment. It uses a self-contained diesel combustion system to produce ducted warm air without running the vehicle engine. Integrated safety sensors, automatic altitude adjustment, and Bluetooth control make it suitable for installations that operate in cold climates, high elevations, and remote environments.

Important: This product is currently backordered with an estimated lead time of approximately 3–5 weeks from the order date before shipping. Free shipping is available to all lower 48 U.S. states.

Key Features

• Integrated safety sensors: Built-in carbon monoxide and flammable gas sensors automatically shut the heater down if unsafe gas levels are detected.
• High-elevation operation: Uses barometric data to adjust the air-fuel mixture, supporting efficient operation above 11,000 feet.
• Bluetooth remote control: Allows monitoring and control of the heater from a smartphone at distances up to 100 feet.
• Efficient combustion system: Proprietary combustion chamber paired with a high-volume fuel pump supports consistent heat output.
• Complete installation kit: Includes required components for installation, including an auxiliary fuel port connector for Sprinter, Transit, and ProMaster vans.
• Durable ignition and controls: Uses a Japanese glow plug and a weather-sealed controller for long-term reliability.
• Multi-application use: Suitable for heating enclosed spaces in vehicles, boats, trailers, campers, and equipment.

Specs & Details

• Model: 4000P
• Voltage: 12V
• Fuel type: Diesel
• Heating capacity: 5600–14000 BTU
• Fuel consumption: 0.053 gal/hr
• Operating power: 20–40 W
• Starting power: <120 W
• Operating temperature range: −40°F to 75°F
• Operating elevation: Up to 16,000 ft
• Dimensions: 14.6 in × 5.5 in × 5.9 in
• Weight: 10 lb
• Warranty: Two-year limited warranty