Mudiro M-5S Ultra Diesel Heater
#2 in All in oneFull review
A cheap all-in-one heater for tents, garages and vans that adds a CO shutoff and automatic altitude adjustment, though its real output is well under the 8 kW rating.
Amazon $129.99$129.99
The Mudiro M-5S Ultra Diesel Heater rates 3.4 among all in one diesel heaters; the Hcalory UNIT 2 8kW Diesel Heater rates 3.2 among split ones. The Mudiro M-5S Ultra Diesel Heater costs $40 less ($129.99 vs $169.99).
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
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.
Scores side by side
These two sit in different type classes (all in one and split), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Mudiro M-5S Ultra Diesel Heater | Hcalory UNIT 2 8kW Diesel Heater |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 25% | 70 $45 per kW ($129.99, 2.9 kW); 8 kW claimed, more than its fuel burn can supply | 72 $61 per kW ($169.99, 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% | 92 holds a set temperature, CO shutoff, automatic altitude, app | 90 holds a set temperature, automatic altitude, app, timer |
| 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% | 83 down to 1 kW (from its lowest fuel burn) | 83 down to 1 kW (from its lowest fuel burn) |
Specifications
| Mudiro M-5S Ultra Diesel Heater | Hcalory UNIT 2 8kW Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 2.9 kW from its fuel burn) | 8 kW claimed (about 2.8 kW from its fuel burn) |
| Fuel burn | 0.12 to 0.36 L/h | 0.12 to 0.35 L/h |
| Fuel tank | 5 L | 15 L |
| Build | All in one | Split (installed) |
| Power | ||
| Supply | 12V/24V/110V | 12V/24V |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 18,050 ft | Yes, to 16,400 ft |
| App | Bluetooth | Bluetooth |
| Timer | - | Yes |
| Remote | Yes | Yes |
| CO shutoff | Yes | - |
| Type approval | None published | None published |
| Build | ||
| Dimensions | - | 15.71 x 5.59 x 6.97 in |
| Weight | - | 16.8 lb |
| Warranty | 2 years | 1 year |
| Released | - | 2026-07 |