A small, cheap split heater with Bluetooth control and automatic altitude adjustment, sized for cars, small vans and boat cabins.
Amazon $99.90The VEVOR XMZ-D2 2kW Bluetooth Heater rates 3.1 among split diesel heaters; the Sunster TR B1 rates 2.8 among all in one ones. The VEVOR XMZ-D2 2kW Bluetooth Heater costs $33.09 less ($99.90 vs $132.99).

A small portable heater for a car, truck cab or tent where 8 kW clones are far too much. Its fuel figures back up its 2 kW rating.
Amazon $132.99Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (split and all in one), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | VEVOR XMZ-D2 2kW Bluetooth Heater | Sunster TR B1 |
|---|---|---|
| Overall rating | 3.1/5 | 2.8/5 |
| Value 25% | 78 $50 per kW ($99.90, 2 kW) | 56 $66 per kW ($132.99, 2 kW) |
| Type approval 20% | 0 no type approval published | 0 no type approval published |
| Controls and safety 15% | 80 holds a set temperature, automatic altitude, app, timer; no CO sensor | 55 app, timer; no CO sensor |
| Power draw 15% | 44 up to 40 W running | 50 power draw not published (neutral score used) |
| Warranty 15% | 0 1-year warranty | 0 1-year warranty |
| Low setting 10% | 83 down to 1 kW (from its lowest fuel burn) | 83 down to 1 kW |
Specifications
| VEVOR XMZ-D2 2kW Bluetooth Heater | Sunster TR B1 | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 2 kW | 2 kW |
| Lowest output | - | 1 kW |
| Fuel burn | 0.12 to 0.26 L/h | 0.1 to 0.26 L/h |
| Fuel tank | 10 L | 5 L |
| Build | Split (installed) | All in one |
| Power | ||
| Supply | 12V | 12V/24V/110V/240V |
| Running draw | 40 W | - |
| Controls and safety | ||
| Thermostat | Yes | - |
| Automatic altitude | Yes, to 18,045 ft | - |
| App | Bluetooth | Bluetooth |
| Timer | Yes | Yes |
| Remote | Yes | Yes |
| CO shutoff | No | No |
| Type approval | None published | None published |
| Build | ||
| Noise | - | 35 dB |
| Dimensions | 13.4 x 4.5 x 5.5 in | - |
| Weight | 11 lb | 15.7 lb |
| Warranty | 1 year | 1 year |
| Released | - | 2026-08 |