LF Bros N3 5kW Diesel Heater
#23 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 and the LF Bros N4 5kW Diesel Heater are evenly matched, rated 2.8 and 2.8. The LF Bros N3 5kW Diesel Heater leads on controls and safety. The LF Bros N4 5kW Diesel Heater costs $270 less ($229.99 vs $499.99).
LF Bros N4 5kW Diesel Heater
#24 in All in oneFull review
A compact portable heater for small garages, tents and vans that need mains or battery power and a timer.
Amazon $229.99$229.99
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 LF Bros N3 5kW Diesel Heater for controls and safety (holds a set temperature, automatic altitude, timer vs timer; no app).
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 | LF Bros N3 5kW Diesel Heater | LF Bros N4 5kW Diesel Heater |
|---|---|---|
| Overall rating | 2.8/5 | 2.8/5 |
| Value 25% | 50 no credible heat rating (neutral score used) | 69 $46 per kW ($229.99, 5 kW) |
| 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 | 50 timer; no app |
| 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 down to 1.4 kW |
Specifications
| LF Bros N3 5kW Diesel Heater | LF Bros N4 5kW Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 5 kW | 5 kW |
| Lowest output | - | 1.4 kW |
| Fuel burn | - | 0.18 to 0.53 L/h |
| Build | All in one | All in one |
| Power | ||
| Supply | 12V/110V | 12V/24V/110V |
| Controls and safety | ||
| Thermostat | Yes | - |
| Automatic altitude | Yes, to 17,160 ft | - |
| App | - | No |
| Timer | Yes | Yes |
| Remote | - | Yes |
| Type approval | None published | None published |
| Build | ||
| Dimensions | 16.1 x 15.7 x 14.6 in | 13.6 x 6 x 15 in |
| Weight | 25.4 lb | 16 lb |
| Warranty | 1 year | 1 year |