VEVOR XMZ-L-D3 8kW All-in-One Heater
#4 in All in oneFull review
A cheap upright all-in-one heater with an app, timer and automatic altitude adjustment, for tents, garages and high-country camping. Expect well under its 8 kW rating.
Amazon $101$101
The VEVOR XMZ-L-D3 8kW All-in-One Heater is the better diesel heater overall, rated 3.2 to 2.9. The Hcalory TB MAX2 wins on controls and safety. The VEVOR XMZ-L-D3 8kW All-in-One Heater costs $198.99 less ($101 vs $299.99).
Hcalory TB MAX2
#19 in All in oneFull review
A well-equipped toolbox heater for campers and garages that want long runtimes, altitude adjustment and quiet nights. Expect about 3 kW of heat, not 8.
Amazon $309.99 Hcalory $299.99$299.99
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 Hcalory TB MAX2 for controls and safety (holds a set temperature, automatic altitude, app, timer vs holds a set temperature, automatic altitude, app, timer; 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 | VEVOR XMZ-L-D3 8kW All-in-One Heater | Hcalory TB MAX2 |
|---|---|---|
| Overall rating | 3.2/5 | 2.9/5 |
| Value 25% | 100 $20 per kW ($101, 5 kW); 8 kW claimed, more than its fuel burn can supply | 38 $107 per kW ($299.99, 2.8 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% | 80 holds a set temperature, automatic altitude, app, timer; no CO sensor | 90 holds a set temperature, automatic altitude, app, timer |
| 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% | 58 down to 1.3 kW (from its lowest fuel burn) | 83 down to 1 kW (from its lowest fuel burn) |
Specifications
| VEVOR XMZ-L-D3 8kW All-in-One Heater | Hcalory TB MAX2 | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 5 kW from its fuel burn) | 8 kW claimed (about 2.8 kW from its fuel burn) |
| Fuel burn | 0.16 to 0.62 L/h | 0.12 to 0.35 L/h |
| Fuel tank | 5 L | 7.9 L |
| Build | All in one | All in one |
| Power | ||
| Supply | 12V | 12V/24V/110V |
| Running draw | 40 W | - |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 18,045 ft | Yes, to 16,400 ft |
| App | Bluetooth | Bluetooth |
| Timer | Yes | Yes |
| Remote | Yes | Yes |
| CO shutoff | No | - |
| Type approval | None published | None published |
| Build | ||
| Noise | - | 54.6 dB |
| Dimensions | 15 x 5.9 x 16.1 in | 15.74 x 10.83 x 12.87 in |
| Weight | 20.6 lb | 28 lb |
| Warranty | 1 year | 1 year |
| Released | - | 2026-09 |