Autoterm Air 2D
#3 in SplitFull review
For van and boat owners who want a type-approved 2 kW heater for less than Webasto or Espar. Add a timer panel if you want it warm before you wake.
Amazon $949.99$949.99
The Autoterm Air 2D is the better diesel heater overall, rated 3.5 to 3.3. The Autoterm Air 2D leads on type approval. The maXpeedingrods 2KW Bluetooth Heater wins on value and controls and safety. The maXpeedingrods 2KW Bluetooth Heater costs $850 less ($99.99 vs $949.99).
maXpeedingrods 2KW Bluetooth Heater
#8 in SplitFull review
A cheap small split heater for a van, truck cab or small boat cabin. Its fuel burn backs up the 2 kW rating, but the maker gives no warranty length or power figures.
Amazon $99.99$99.99
Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Autoterm Air 2D for type approval (type approved (ECE R122) vs no type approval published).
- Choose the maXpeedingrods 2KW Bluetooth Heater for value ($50 per kW ($99.99, 2 kW) vs $475 per kW ($949.99, 2 kW)) and controls and safety (holds a set temperature, automatic altitude, app; no CO sensor vs holds a set temperature, automatic altitude; no CO sensor).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every split diesel heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Autoterm Air 2D | maXpeedingrods 2KW Bluetooth Heater |
|---|---|---|
| Overall rating | 3.5/5 | 3.3/5 |
| Value 25% | 7 $475 per kW ($949.99, 2 kW) | 78 $50 per kW ($99.99, 2 kW) |
| Type approval 20% | 100 type approved (ECE R122) | 0 no type approval published |
| Controls and safety 15% | 50 holds a set temperature, automatic altitude; no CO sensor | 72 holds a set temperature, automatic altitude, app; no CO sensor |
| Power draw 15% | 69 up to 29 W running | 50 power draw not published (neutral score used) |
| Warranty 15% | 50 2-year warranty | 50 warranty not published (neutral score used) |
| Low setting 10% | 100 down to 0.8 kW | 58 down to 1.3 kW (from its lowest fuel burn) |
Specifications
| Autoterm Air 2D | maXpeedingrods 2KW Bluetooth Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 2 kW | 2 kW |
| Lowest output | 0.8 kW | - |
| Fuel burn | 0.1 to 0.24 L/h | 0.16 to 0.26 L/h |
| Fuel tank | - | 9 L |
| Build | Split (installed) | Split (installed) |
| Power | ||
| Supply | 12V | 12V/24V |
| Running draw | 10 to 29 W | - |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 13,780 ft | Yes, to 18,050 ft |
| App | No | Bluetooth |
| Timer | No | - |
| Remote | No | Yes |
| CO shutoff | No | No |
| Type approval | ECE R122 | None published |
| Build | ||
| Dimensions | 12.2 x 4.7 x 5.7 in | 34 x 11.5 x 11.5 cm |
| Weight | 6.4 lb | - |
| Warranty | 2 years | - |