Nomad Gear Finder
Eberspächer Airtronic S3 D2L
Eberspacher Espar Airtronic Heater Kit AS3 D2L (Diesel) 12V Upgraded Version of The S2 D2
A compact 12V split heater that modulates from 0.9 to 2.2 kW (7506 BTU/h) and burns 0.10 to 0.27 L/h. At 5.51 lbs it is among the lightest listed, its 27 W running draw is among the lowest, and it adjusts automatically for altitude and works down to -40 ℃. ECE R122 approved and priced well above budget 2 kW models, it suits small vans needing certified heat.
$1,250.00 as of – Details
Only 17 left in stock - order soon on Amazon
- Max heat output
- 2.2 kW
- Min heat output
- 0.9 kW
- Max heat output (BTU/h)
- 7,506 BTU/h
- Fuel consumption min
- 0.10 L/h
- Brand
- Eberspächer
Rankings in the diesel heaters Category
How does this product compare with others in Nomad Gear Finder's diesel heaters category?
- Startup power draw 90 W The lowest of 5
- Running power draw 27 W The lowest of 19
- Weight 5.51 lbs 2.50 kg The lowest of 39
- Length 12.20 in. 310 mm Lower than 92% of 40 others
- Width 4.53 in. 115 mm Lower than 95% of 40 others
- Depth/Height 4.80 in. 122 mm Lower than 92% of 40 others
Compare this product with close matches Compare with all diesel heaters
Videos for this product
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Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase; see our About page for more information.
Core specs
- Heater type
- Split
- Max heat output
- 2.2 kW
- Min heat output
- 0.9 kW
- Max heat output (BTU/h)
- 7,506 BTU/h
Fuel
- Fuel consumption min
- 0.10 L/h
- Fuel consumption max
- 0.071 gal/h 0.27 L/h
Power
- DC input voltage
- 12V
- Startup power draw
- 90 W
- Running power draw
- 27 W
Physical Attributes
- Brushless motor
- Yes
- IP rating
- IP5K4K
- Weight
- 5.51 lbs 2.50 kg
- Length
- 12.20 in. 310 mm
- Width
- 4.53 in. 115 mm
- Depth/Height
- 4.80 in. 122 mm
Altitude
- Altitude adjustment
- Automatic
Operating Temp Range
- Operating temp min
- -40 ℉ -40 ℃
Safety
- Overheat protection
- Yes
- Low-voltage protection
- Yes
Warranty & Certification
- ECE R122 approved
- Yes
- ECE R10 (E-mark) EMC
- Yes
Features
Details from the Eberspächer Airtronic S3 D2L Amazon listing:
- The Eberspacher Airtronic AS3 D2L is the brand-new diesel heater on the market, offering 2kW / 6824 BTU maximum heat output. This power, combined with the D2L’s advanced features and engineering, makes it one of the best 2kW diesel heaters on the market.
- Compact design for convenient installation, i.e. Under passenger seat. Airtronic D2L is the same size as the AS3 B2L but smaller in size than B4L.
- The Eberspacher D2L is engineered to operate in extreme conditions and high altitudes. It can operate in temperatures as low as -46°C / - 50°F and at altitudes of up to 18K feet. This is possible thanks to its integrated altitude sensor, and unlike earlier models there is no additional wiring or installation required for high altitude operation.
- Controlling the heater is simple because it has an integrated temperature sensor. The Eberspacher D2L’s stepless blower system enables optimized heating control and maximizes performance efficiency.
- The stepless blower system also ensures quieter performance compared to previous models, while the dampened fuel pump piston reduces clicking noise. The Eberspacher D2L also sports a brushless fan which helps to further reduce noise.
- The Eberspacher D2L is highly versatile when it comes to installation. Its adaptable ducting system, which can go up to 15 meters / 49ft in length, features outlets of either 60mm or 75mm. Ducting outlets are closable and can have different degree grilles and outlet types, plus the number of outlets can be varied based on the complexity of the ducting system.
- The Eberspacher D2L is easier to install than previous models. It features plug and play installation which requires fewer tools, enabling DIY installation.
- The heater’s fuel system plugs directly into your vehicle’s fuel system or tank with a standpipe or via an auxiliary tap (if your vehicle manufacturer offers one). Installation of the fuel system has been simplified for this model, with the same line used for the whole installation.
- The Eberspacher AS3 D2L is compatible with all 3 communication protocol technologies used by Eberspacher - CAN, LIN and S+. This means you can use your earlier generation controller with the Eberspacher D2L
- The brushless fan ensures the Eberspacher D2L has a long operating life, increasing service time from 3k hours (on previous models) up to 5k hours. And if there are any issues, the new controller communication system allows more accurate on-screen fault diagnostics. Start up power consumption has been reduced compared to previous models.
Similar products from other brands
Chosen for their similar specs and price:
 This productEberspächer Airtronic S3 D2L |
 KOZAK Air 2D |
 Truck Parts Line Air Top 2000 STC |
 VEVOR XMZ-D2 |
|
|---|---|---|---|---|
| Price | $1,250.00 | $949.99 | $1,295.00 | $99.90 |
| Reviews | – | Mostly positive | – | – |
| Model | Airtronic S3 D2L | Air 2D | Air Top 2000 STC | XMZ-D2 |
| Popular brand | Yes | No | No | Yes |
| Heater type | Split | Split | Split | – |
| Max heat output kW | 2.2 | 2.0 | 2.0 | 2.0 |
| Min heat output kW | 0.9 | 0.8 | 0.9 | – |
| Max heat output (BTU/h) BTU/h | 7,506 | 6,824 | 7,000 | – |
| Heating area m² | – | – | – | 15 |
| Heating area sq ft | – | – | – | 161 |
| Air flow m³/h | – | 86 | 93 | – |
| Fuel tank capacity L | – | – | – | 10.0 |
| Fuel tank capacity gal | – | – | – | 2.6 |
| Fuel consumption min L/h | 0.10 | 0.10 | 0.12 | 0.12 |
| Fuel consumption max L/h | 0.27 | 0.24 | 0.24 | 0.26 |
| Fuel consumption max gal/h | 0.071 | 0.063 | 0.063 | 0.069 |
| Max runtime per tank hours | – | – | – | 38 |
| Heat levels levels | – | – | – | 10 |
| Thermostat mode | – | Yes | – | Yes |
| Thermostat min ℉ | – | – | – | 46 |
| Thermostat max ℉ | – | – | – | 97 |
| Thermostat min ℃ | – | – | – | 8 |
| Thermostat max ℃ | – | – | – | 36 |
| Timer | – | – | – | Yes |
| Remote control included | – | – | – | Yes |
| Remote range ft | – | – | – | 32 |
| App connectivity | – | – | – | Bluetooth |
| DC input voltage | 12V | 12V | 12V | 12V |
| Startup power draw W | 90 | – | – | – |
| Running power draw W | 27 | 29 | 29 | – |
| Air duct diameter mm | – | 60 | – | – |
| Brushless motor | Yes | – | – | – |
| IP rating | IP5K4K | – | – | – |
| Weight lbs | 5.51 | 6.39 | 5.73 | 11.00 |
| Weight kg | 2.50 | 2.90 | 2.60 | 5.00 |
| Length in. | 12.20 | 12.20 | 12.25 | 13.40 |
| Length mm | 310 | 310 | 311 | 340 |
| Width in. | 4.53 | 4.69 | 4.72 | 4.50 |
| Width mm | 115 | 119 | 120 | 115 |
| Depth/Height in. | 4.80 | 5.71 | 4.76 | 5.50 |
| Depth/Height mm | 122 | 145 | 121 | 140 |
| Max operating altitude ft | – | 8,202 | – | 18,045 |
| Max operating altitude (m) m | – | 2,500 | 2,200 | 5,500 |
| Altitude adjustment | Automatic | – | Manual | Automatic |
| Operating temp min ℃ | -40 | -45 | – | – |
| Operating temp min ℉ | -40 | -49 | – | – |
| Overheat protection | Yes | Yes | – | Yes |
| Low-voltage protection | Yes | Yes | – | – |
| Warranty | – | 2 Years | 2 Years | 12 Months |
| ECE R122 approved | Yes | – | – | – |
| ECE R10 (E-mark) EMC | Yes | – | – | – |
Data sources
Data for this product compiled from these sources:
- https://www.eberspaecher.com/fileadmin/data/corporatesite/pdf/technische_doku/TB/Luftheizger%C3%A4te/Airtronic_3/25.2953.90.0001.0A_EN_0424.pdf
- https://www.eberspaecher-climate.com/fileadmin/data/csp/pdf/ProductSheets_new_EN/Airtronic_S3M3_Data_sheet_EN.pdf
- https://www.eberspaecher-climate.com/products/fuel-operated-heaters
Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.
Specifications last updated Nov 5, 2026.