Espar Airtronic M3 D4L Diesel Heater

The Espar Airtronic M3 D4L is a powerful and efficient 12V diesel heater designed for larger vans, RVs, trucks, and other spacious applications. Its 4 kW heating output provides fast, reliable warmth while maintaining low fuel and electrical consumption for extended use.

The M3 D4L features built-in altitude compensation up to 18,000 ft (5,500 m), eliminating the need for an additional altitude module. Its compact design, quiet operation, and advanced control system make it well suited for overnight heating and demanding mobile applications.

Features

• 4 kW / 13,648 BTU/h heating output.
• Built-in altitude compensation up to 18,000 ft (5,500 m).
• Low fuel and electrical consumption.
• Quiet operation with multiple heating levels.
• Brushless motor designed for extended service life.
• Built-in self-diagnostics.
• Compact and easy to maintain.
• EPA verified and CARB compliant for use throughout North America.

Kit Contents

• Eberspächer Airtronic M3 D4L 12V heater.
• EasyStart Pro controller.
• Fuel metering pump, fuel line and clamps.
• Wiring harnesses.
• Stainless steel exhaust pipe.
• Combustion intake pipe.
• 0.5 m flexible ducting.
• Outlet grille and 90 mm straight air outlet hood.
• Screws, clips and plastic straps required for installation.
• Installation manual.
• Warranty documentation.

Specifications

• Fuel Type: Diesel
• Voltage: 12V
• Maximum Power: 4 kW
• BTU Output: 13,648 BTU/h
• Altitude Compensation: Up to 5,500 m / 18,000 ft
• Rated Power Consumption: 39 W
• Fuel Consumption: 0.1–0.48 L/h
• Dimensions (L × W × H): 376 × 140 × 150 mm / 14.8 × 5.5 × 5.9 in
• Weight: 4.5 kg / 9.9 lb