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 is the better diesel heater overall, rated 3.4 to 3.1. The Mudiro M-5S Ultra Diesel Heater leads on warranty and controls and safety. The Mudiro M-5S Ultra Diesel Heater costs $20 less ($129.99 vs $149.99).
SILVEL 8kW 9L Diesel Heater
#9 in All in oneFull review
A budget all-in-one heater with a big tank and automatic altitude adjustment, for garages, tents and campers that need long runtimes.
Amazon $149.99$149.99
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 Mudiro M-5S Ultra Diesel Heater for warranty (2-year warranty vs 1-year warranty) and controls and safety (holds a set temperature, CO shutoff, automatic altitude, app vs holds a set temperature, automatic altitude, 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 | Mudiro M-5S Ultra Diesel Heater | SILVEL 8kW 9L Diesel Heater |
|---|---|---|
| Overall rating | 3.4/5 | 3.1/5 |
| Value 25% | 70 $45 per kW ($129.99, 2.9 kW); 8 kW claimed, more than its fuel burn can supply | 77 $37 per kW ($149.99, 4 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 | 65 holds a set temperature, automatic altitude, timer; 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% | 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 | SILVEL 8kW 9L Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 8 kW claimed (about 2.9 kW from its fuel burn) | 8 kW claimed (about 4 kW from its fuel burn) |
| Fuel burn | 0.12 to 0.36 L/h | 0.12 to 0.5 L/h |
| Fuel tank | 5 L | 9 L |
| Build | All in one | All in one |
| Power | ||
| Supply | 12V/24V/110V | 12V/24V/110V |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 18,050 ft | Yes, to 11,480 ft |
| App | Bluetooth | No |
| Timer | - | Yes |
| Remote | Yes | Yes |
| CO shutoff | Yes | No |
| Type approval | None published | None published |
| Build | ||
| Dimensions | - | 18.11 x 18.11 x 15.55 in |
| Warranty | 2 years | 1 year |