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 3.2. The GEARLASSO DH002 Diesel Heater leads on warranty. The Hcalory HBH1S Handy 1S costs $12 less ($109.99 vs $121.99).
Hcalory HBH1S Handy 1S
#7 in All in oneFull review
A cheap carry-handle heater for garages, campers and vans that still holds a set temperature. Expect about 3.6 kW of heat, not 8.
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 | Hcalory HBH1S Handy 1S |
|---|---|---|
| Overall rating | 3.2/5 | 3.2/5 |
| Value 25% | 81 $34 per kW ($121.99, 3.6 kW); 8 kW claimed, more than its fuel burn can supply | 84 $31 per kW ($109.99, 3.6 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 | 70 holds a set temperature, app, timer; 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 | 83 down to 1 kW (from its lowest fuel burn) |
Specifications
| GEARLASSO DH002 Diesel Heater | Hcalory HBH1S Handy 1S | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 3.6 kW from its fuel burn) | 8 kW claimed (about 3.6 kW from its fuel burn) |
| Lowest output | 1.4 kW | - |
| Fuel burn | 0.15 to 0.45 L/h | 0.12 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 |
| Automatic altitude | - | No |
| App | Bluetooth | Bluetooth |
| Timer | - | Yes |
| Remote | Yes | Yes |
| CO shutoff | No | - |
| Type approval | None published | None published |
| Build | ||
| Dimensions | - | 16 x 12 x 19 in |
| Weight | - | 20.9 lb |
| Warranty | 2 years | 1 year |
| Released | - | 2025-09 |