Eberspacher Airtronic AS3 B2L 12V Basic kit with EasyStart Pro controller
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Core Features & Benefits
Reliable Gasoline Air Heater for Your Vehicle
Enjoy dependable warmth wherever your journey takes you. The compact Espar Airtronic S3 B2L gasoline heater provides up to 6,800 BTU (2.0 kW) of heating power while maintaining low electrical consumption and quiet operation. Paired with the EasyStart Pro Controller, it allows precise and convenient temperature adjustment.
Key Benefits & Applications
The Espar S3 B2L quickly heats your vehicle interior, maintains a comfortable temperature overnight, and runs efficiently on gasoline. It is especially well suited for vehicles without a diesel fuel system. Designed for commercial operators, camper conversions, and professional vehicle installations, it delivers dependable comfort in a wide range of conditions.
- Balanced airflow for steady and comfortable heating
- Energy-efficient performance suitable for battery-powered and off-grid setups
- Quiet operation for greater comfort during rest and overnight use
- Space-saving design for convenient installation under seats or inside storage compartments
- Works with the EasyStart Pro controller for simple and accurate temperature management
Vehicle Compatibility
Designed for gasoline-powered vehicles that operate independently of the engine’s cooling system, including:
- Van conversions and camper builds - for weekend adventures or full-time travel
- RVs and small motorhomes - quiet, efficient heating for off-grid camping
- Truck sleepers and long-haul fleets - reliable heat without idling
- Construction, agricultural, and industrial vehicles - maintain cabin warmth during downtime
- Utility and emergency service vehicles - dependable heat for on-duty crews
- Electric and hybrid vehicles - efficient auxiliary heating solution
Not suitable for diesel applications or marine use.
Technical Specifications
- Fuel Type: Gasoline (Petrol)
- Voltage: 12V
- Heat Output: 6,800 BTU (2.0 kW) max; ~3,400 BTU (1.0 kW) low
- Fuel Consumption: 0.04–0.07 gal/h (0.14–0.26 L/h)
- Power Consumption: 11–26 W
- Max Altitude: 13,120 ft (4,000 m) with integrated altitude sensor
- Dimensions (heater body only): 12.2 × 4.5 × 4.8 in (310 × 115 × 122 mm)
- Certifications/Ratings: EN 55025 class 5; IP5K4K (operating), IP5K6K/IP5K9K (not operating)
- Warranty: 2 years (extendable by 1 year)
Part numbers:
- Complete kit: 202820290200
- Heater only: 202029050000
- Alternative formats: 20.2820.29.0200; 20.2820.29.02.00; 20 2820 29 0200; 20 2820 29 02 00
Kit Includes
- Espar Airtronic S3 B2L 12v Heater
- EasyStart Pro Controller
- Fuel pump (12v)
- Fuel hose
- Electrical harnesses - Plug n' Play
- Stainless steel exhaust system - approx. 4.9 ft (1.5m)
- Combustion intake pipe ~3.3 ft (1 m)
- Flexible ducting (60 mm. diameter) - 1.64 ft (0.5 m)
- Flat mounting plate and foam gasket
- Inlet grills
- Adjustable air outlet grill (60 mm. diameter)
- Screws, clips and plastic straps required for installation
- Installation manual CD (Scan QR code for installation manual download)
- Warranty documentation
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Eberspacher Airtronic AS3 B2L 12V Basic kit with EasyStart Pro controller
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