GEARLASSO DH002 Diesel Heater
#5 in All in oneFull review
A cheap all-in-one heater with app control and a two year warranty, for tents and small vans, with real output closer to 3.6 kW.
Amazon $139.99$139.99
The GEARLASSO DH002 Diesel Heater is the better diesel heater overall, rated 3.2 to 2.9. The GEARLASSO DH002 Diesel Heater leads on warranty. The VEVOR XMZ-TB20 8kW All-in-One Heater wins on controls and safety. The GEARLASSO DH002 Diesel Heater costs $5.91 less ($139.99 vs $145.90).
VEVOR XMZ-TB20 8kW All-in-One Heater
#16 in All in oneFull review
A portable all-in-one heater with a CO shutoff and Bluetooth control, for garages, workshops and camping. Expect well under half its 8 kW rating.
Amazon $145.90$145.90
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 GEARLASSO DH002 Diesel Heater for warranty (2-year warranty vs 1-year warranty).
- Choose the VEVOR XMZ-TB20 8kW All-in-One Heater for controls and safety (holds a set temperature, CO shutoff, app; no automatic altitude vs holds a set temperature, app; no CO sensor).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every all in one diesel heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | GEARLASSO DH002 Diesel Heater | VEVOR XMZ-TB20 8kW All-in-One Heater |
|---|---|---|
| Overall rating | 3.2/5 | 2.9/5 |
| Value 25% | 75 $39 per kW ($139.99, 3.6 kW); 8 kW claimed, more than its fuel burn can supply | 70 $46 per kW ($145.90, 3.2 kW); 8 kW claimed, more than its fuel burn can supply |
| Type approval 20% | 0 no type approval published | 0 no type approval published |
| Controls and safety 15% | 62 holds a set temperature, app; no CO sensor | 72 holds a set temperature, CO shutoff, app; no automatic altitude |
| Power draw 15% | 50 power draw not published (neutral score used) | 50 power draw not published (neutral score used) |
| Warranty 15% | 50 2-year warranty | 0 1-year warranty |
| Low setting 10% | 50 down to 1.4 kW | 50 down to 1.4 kW (from its lowest fuel burn) |
Specifications
| GEARLASSO DH002 Diesel Heater | VEVOR XMZ-TB20 8kW All-in-One Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 3.6 kW from its fuel burn) | 8 kW claimed (about 3.2 kW from its fuel burn) |
| Lowest output | 1.4 kW | - |
| Fuel burn | 0.15 to 0.45 L/h | 0.18 to 0.4 L/h |
| Fuel tank | 5 L | - |
| Build | All in one | All in one |
| Power | ||
| Supply | 12V/24V/110V | 12V/24V/110V |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | - | No |
| App | Bluetooth | Bluetooth |
| Remote | Yes | Yes |
| CO shutoff | No | Yes |
| Type approval | None published | None published |
| Build | ||
| Noise | - | 75 dB |
| Dimensions | - | 15.94 x 10.83 x 11.61 in |
| Weight | - | 19.8 lb |
| Warranty | 2 years | 1 year |
| Released | - | 2026-01 |