Espar Airtronic M3 D4L Diesel 12V Heater Kit with EasyStart Pro Controller
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Core Features & Benefits
Fast, Quiet Diesel Air Heat for Vans, RVs, Trucks & Small Boats
Warm up large cabins quickly and sleep comfortably with low battery draw and steady airflow. The Airtronic M3 D4L delivers up to 13,650 BTU (4 kW) and pairs with the EasyStart Pro for simple, reliable control in all seasons.
Benefits & Use Cases
This latest-generation Eberspächer/Espar Airtronic is designed for bigger spaces—cargo vans, motorhomes, sleeper cabs, and yachts up to ~35 ft—where you need real heat without idling the engine.
- Heats fast, then maintains an even, quiet temperature through the night
- Low electrical draw (5–42 W) to protect house batteries off-grid
- Automatic altitude capability up to 18,000 ft (5,500 m) for mountain travel
- Compact body fits under seats or in service bays on vans, RVs, and trucks
Technical
- Fuel: Diesel
- Voltage: 12V
- Max Output: 13,650 BTU (4.0 kW)
- Fuel Consumption: 0.03–0.135 gal/h (0.11–0.51 l/h)
- Power Consumption: 5–42 W; starting ≤100 W
- Max Altitude: 18,000 ft (5,500 m)
- Warranty: 2 years
- Dimensions (heater body): 14.6 × 5.5 × 5.9 in (371 × 140 × 150 mm)
- Part Numbers: Heater 252955050000; Install kit 252720800000
- Certifications: ECE R122 (heating) & ECE R10 (EMC)
Vehicle Compatibility
- Large trucks – cabs with sleeping cabins
- Vans and small buses
- Large agricultural and construction machines
- Yachts up to ~35 ft (requires marine intallation kit)
- Motorhomes, minivans, and mobile office/conference vehicles
Kit Includes
- Eberspacher Airtronic AM3 D4L 12v Heater
- EasyStart Pro controller
- Fuel pump (12v)
- Fuel hose
- Exhaust Silencer / muffler
- Electrical harnesses
- Stainless steel exhaust pipe - approx. 90cm
- Combustion intake pipe
- Flexible ducting - 0.5 meter
- Inlet / Outlet grills
- Air outlet (90mm)
- Screws, clips and plastic straps required for installation
- Installation manual
- Warranty documentation
Manuals
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