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 3.1. The Autoterm Air 2D leads on type approval, warranty and power draw. The VEVOR XMZ-D2 2kW Bluetooth Heater wins on value and controls and safety. The VEVOR XMZ-D2 2kW Bluetooth Heater costs $850.09 less ($99.90 vs $949.99).
VEVOR XMZ-D2 2kW Bluetooth Heater
#14 in SplitFull review
A small, cheap split heater with Bluetooth control and automatic altitude adjustment, sized for cars, small vans and boat cabins.
Amazon $99.90$99.90
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), warranty (2-year warranty vs 1-year warranty) and power draw (up to 29 W running vs up to 40 W running).
- Choose the VEVOR XMZ-D2 2kW Bluetooth Heater for value ($50 per kW ($99.90, 2 kW) vs $475 per kW ($949.99, 2 kW)) and controls and safety (holds a set temperature, automatic altitude, app, timer; 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 | VEVOR XMZ-D2 2kW Bluetooth Heater |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 25% | 7 $475 per kW ($949.99, 2 kW) | 78 $50 per kW ($99.90, 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 | 80 holds a set temperature, automatic altitude, app, timer; no CO sensor |
| Power draw 15% | 69 up to 29 W running | 44 up to 40 W running |
| Warranty 15% | 50 2-year warranty | 0 1-year warranty |
| Low setting 10% | 100 down to 0.8 kW | 83 down to 1 kW (from its lowest fuel burn) |
Specifications
| Autoterm Air 2D | VEVOR XMZ-D2 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 | 0.12 to 0.26 L/h |
| Fuel tank | - | 10 L |
| Build | Split (installed) | Split (installed) |
| Power | ||
| Supply | 12V | 12V |
| Running draw | 10 to 29 W | 40 W |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 13,780 ft | Yes, to 18,045 ft |
| App | No | Bluetooth |
| Timer | No | Yes |
| Remote | No | Yes |
| CO shutoff | No | No |
| Type approval | ECE R122 | None published |
| Build | ||
| Dimensions | 12.2 x 4.7 x 5.7 in | 13.4 x 4.5 x 5.5 in |
| Weight | 6.4 lb | 11 lb |
| Warranty | 2 years | 1 year |