LF Bros N3 5kW Diesel Heater
#21 in All in oneFull review
A portable heater with a thermostat and altitude compensation for high mountain camping and cabins, at a high price for what LF Bros publishes about it.
Amazon $499.99$499.99
The LF Bros N3 5kW Diesel Heater rates 2.8 among all in one diesel heaters; the Hcalory HBU1S 5kW Diesel Heater rates 2.7 among split ones. The Hcalory HBU1S 5kW Diesel Heater costs $410 less ($89.99 vs $499.99).
Hcalory HBU1S 5kW Diesel Heater
#30 in SplitFull review
A cheap app-controlled split heater for DIY van and RV installs, though Hcalory publishes few specs for this 5 kW version.
Amazon $89.99$89.99
Prices were last checked November 2, 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 | LF Bros N3 5kW Diesel Heater | Hcalory HBU1S 5kW Diesel Heater |
|---|---|---|
| Overall rating | 2.8/5 | 2.7/5 |
| Value 25% | 50 no credible heat rating (neutral score used) | 50 no credible heat rating (neutral score used) |
| Type approval 20% | 0 no type approval published | 0 no type approval published |
| Controls and safety 15% | 82 holds a set temperature, automatic altitude, timer | 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% | 0 1-year warranty | 0 1-year warranty |
| Low setting 10% | 50 lowest setting not published (neutral score used) | 50 lowest setting not published (neutral score used) |
Specifications
| LF Bros N3 5kW Diesel Heater | Hcalory HBU1S 5kW Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 5 kW | 5 kW |
| Fuel tank | - | 10 L |
| Build | All in one | Split (installed) |
| Power | ||
| Supply | 12V/110V | 12V/24V |
| Controls and safety | ||
| Thermostat | Yes | Yes |
| Automatic altitude | Yes, to 17,160 ft | No |
| App | - | Bluetooth |
| Timer | Yes | Yes |
| Type approval | None published | None published |
| Build | ||
| Dimensions | 16.1 x 15.7 x 14.6 in | - |
| Weight | 25.4 lb | - |
| Warranty | 1 year | 1 year |
| Released | - | 2025-08 |