GEARLASSO DH002 Diesel Heater
#4 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 $121.99$121.99
The GEARLASSO DH002 Diesel Heater is the better diesel heater overall, rated 3.2 to 2.7. The GEARLASSO DH002 Diesel Heater leads on warranty. The Manastin 8kW Diesel Heater costs $12 less ($109.99 vs $121.99).
Manastin 8kW Diesel Heater
#32 in All in oneFull review
One of the cheapest all-in-one heaters with Bluetooth control, for tents and small spaces, though its 8 kW rating has no fuel figure behind it.
Amazon $109.99$109.99
Prices were last checked October 31, 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).
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 | Manastin 8kW Diesel Heater |
|---|---|---|
| Overall rating | 3.2/5 | 2.7/5 |
| Value 25% | 81 $34 per kW ($121.99, 3.6 kW); 8 kW claimed, more than its fuel burn can supply | 50 no credible heat rating (neutral score used) |
| 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 | 62 holds a set temperature, app; no CO sensor |
| 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 lowest setting not published (neutral score used) |
Specifications
| GEARLASSO DH002 Diesel Heater | Manastin 8kW Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 3.6 kW from its fuel burn) | 8 kW |
| Lowest output | 1.4 kW | - |
| Fuel burn | 0.15 to 0.45 L/h | - |
| Fuel tank | 5 L | 5 L |
| Build | All in one | All in one |
| Power | ||
| Supply | 12V/24V/110V | 12V/24V/110V |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| App | Bluetooth | Bluetooth |
| Remote | Yes | Yes |
| CO shutoff | No | No |
| Type approval | None published | None published |
| Build | ||
| Dimensions | - | 12.01 x 9.65 x 15.75 in |
| Weight | - | 18.8 lb |
| Warranty | 2 years | 1 year |