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The Lf Bros Professional 5KW Diesel Heater delivers reliable heating for workshops, garages, campervans and outdoor spaces. This all-in-one unit operates on 12V, 24V or 230V power sources with included adapter.
Features include a silent oil pump that eliminates typical clicking sounds and an advanced muffler system for quiet operation. The dual heating modes offer power mode for continuous operation or temperature mode with automatic shut-off.
Built-in timer functions from 1-24 hours and PID temperature control maintain consistent heating. The leak-proof fuel tank with internal thread design prevents spills during transport. Operates effectively at altitudes up to 5,000 metres with aviation-grade components.
This heater works with 12V, 24V and 230V power sources. It includes a 220-240V adapter for mains power connection. The 12V/24V connection uses eyelet terminals that can connect to vehicle batteries or portable power stations. The power consumption ranges from 20-150 watts depending on heat output setting, making it compatible with most portable battery systems.
The built-in fuel tank holds 5 litres of diesel. Fuel consumption varies from 0.18 litres per hour on the lowest setting to 0.53 litres per hour at maximum 5KW output. This means you can expect 9-28 hours of operation from a full tank depending on your heat requirements. The tank features a leak-proof cap with internal threading to prevent spills during transport.
The heater is rated for spaces up to 25 square metres. Heat output is adjustable from 1.4KW to 5KW, allowing you to match the heating power to your space size and insulation quality. In well-insulated spaces like modern caravans, the lower settings are often sufficient, whilst workshops or poorly insulated areas may require higher output settings.
Temperature mode uses a built-in thermostat with PID control to maintain your desired temperature automatically. Set your target temperature and the heater will cycle on and off to maintain it within 2°C. When the space reaches your set temperature, the heater stops. If temperature drops 2°C below the setting, it automatically restarts. This saves fuel and prevents overheating compared to constant power mode operation.
The heater includes plateau performance technology with a built-in altimeter that adjusts combustion parameters for altitudes up to 5,000 metres. Standard diesel heaters often struggle or fail at high elevations due to reduced oxygen levels affecting combustion. The intelligent monitoring system compensates for these conditions automatically, making it reliable for mountain camping, skiing trips, or high-altitude work sites.
This heater features double noise reduction through a silent oil pump and advanced muffler design. The oil pump eliminates the clicking sounds common in cheaper diesel heaters. The muffler uses an internal bent-tube structure rather than simple baffles, significantly reducing exhaust noise. Users report it's noticeably quieter than standard Chinese diesel heaters, though the fan noise increases with higher heat output settings.
The heater requires proper exhaust ventilation to the outside as it produces combustion gases. The exhaust port must be installed outdoors and positioned downwind for proper ventilation. The muffler must be mounted horizontally with the small drainage hole facing downward. All necessary pipes and fittings are included. The unit can be floor-mounted or installed in a ventilated compartment with ducted air distribution.
The package includes the heater unit, remote control, LCD controller with 80-inch extension cable, 220-240V adapter, exhaust pipes, muffler, air intake hose and all necessary fittings. Assembly is straightforward using the included quick-connect fittings for both electrical and fuel connections. Detailed instructions and assembly videos are provided. No additional parts or complex DIY work is required - it's designed to be operational straight from the box.
| Brand | Lf Bros |
| Model | N3 |
| Heat Output | 1400-5000W |
| Fuel Type | Diesel |
| Power Source | 12V/24V/230V |
| Fuel Consumption | 0.18-0.53 litres per hour |
| Recommended Heating Area | 25 m² |
| Operating Temperature Range | -40°C to 40°C |
| Maximum Altitude | 5000 metres |
| Weight | 11.5 kg |
| Dimensions | 41 x 40 x 37 cm |
| Alternative Dimensions | 38 x 24.5 x 29.5 cm |
| Fuel Tank Capacity | 5 litres |
| Air Flow | 120-190 m³/h |
| Colour | Red |
| Form Factor | Pedestal |
| Mounting Type | Floor Mount |
| Heating Method | Radiant |
| Number of Speeds | 2 |
| Maximum Temperature Setting | 40°C |
| Energy Class | A |
| Remote Control Range | 30 metres |
| Controller Cable Length | 92 inches total |
| Timer Range | 1-24 hours |
| Warranty | 1 year manufacturer |
| Indoor/Outdoor Usage | Both |
| Glow Plug Type | Japanese |
| Body Material | Sandblasted aluminium |
| Exhaust Outlet Size | 3.5 inches |