Hcalory UNIT 2 8kW Diesel Heater
#12 in SplitFull review
A well-featured split heater for van and RV builds that want automatic altitude handling and a big tank; expect about 3 kW of real heat, not 8.
Amazon $169.99$169.99
3.1/5
A small, cheap split heater with Bluetooth control and automatic altitude adjustment, sized for cars, small vans and boat cabins.
- 2 kWHeat output
- 0.12 to 0.26 L/hFuel burn
- 40 WPower draw
- None publishedType approval
- 1 yearWarranty
Check price at Amazon$99.90
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Honest 2 kW rating that its fuel burn supports
- Adjusts itself for altitude up to 18,045 ft
- Phone app, remote and timer for preheating
- Sips fuel: a 10 L tank lasts well over a day
Cons
- Too small for a large RV or uninsulated garage
- Runs on 12V only
- No type approval for vehicle installs
The VEVOR XMZ-D2 family
Every VEVOR XMZ-D2 model we rank, smallest first. Ratings compare each against its own type.
| Model | Heat output | Rating | Price |
|---|---|---|---|
| VEVOR XMZ-D2 2kW LCD Diesel Heater | 2 kW | 3.0/5 | $94.90 |
| VEVOR XMZ-D2 2kW Bluetooth Heater (this one) | 2 kW | 3.1/5 | $99.90 |
| VEVOR XMZ-D2 8kW Bluetooth Heater | 8 kW claimed (about 5 kW from its fuel burn) | 3.2/5 | $101.55 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | XMZ-D2 |
|---|---|
| Heating | |
| Heat output (maker) | 2 kW |
| Fuel burn | 0.12 to 0.26 L/h |
| Fuel tank | 10 L |
| Build | Split (installed) |
| Power | |
| Supply | 12V |
| Running draw | 40 W |
| Controls and safety | |
| Thermostat | Yes |
| Automatic altitude | Yes, to 18,045 ft |
| App | Bluetooth |
| Timer | Yes |
| Remote | Yes |
| CO shutoff | No |
| Type approval | None published |
| Build | |
| Dimensions | 13.4 x 4.5 x 5.5 in |
| Weight | 11 lb |
| Warranty | 1 year |
Alternatives in this type
Webasto Air Top Evo 55
#13 in SplitFull review
For 24V trucks, buses and larger motorhomes that need a type-approved 5 kW heater with automatic altitude adjustment. It costs far more than clone heaters of the same size.
Amazon $1,697.89$1,697.89
WAYSKA WKH-B3 8kW Diesel Heater
#15 in SplitFull review
A complete split kit with a big tank and remote for trucks, trailers and boats, but it is a generic clone priced well above others like it.
Amazon $189.99$189.99
Compare
Compare the VEVOR XMZ-D2 2kW Bluetooth Heater with any other diesel heater →
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