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LF Bros N3

LF Bros 110V/12V 5KW Diesel Heater with Timer, Thermostat, Plateau Mode | 17,162 ft Altitude Tested, 9~27H Runtime, 6-Layer Safety Protection, Freeze-Resistant Wiring, Fast Heating, Low-Noise Pump

Only 11 left in stock - order soon.

A 5 kW diesel heater in a sandblasted aluminum body weighing 9.2 lbs (4.2 kg), lighter than most heaters with a stated weight. It adjusts automatically for altitude up to 17,000 ft (5,182 m) and offers power and thermostat modes with auto start/stop and a 24-hour timer. It runs on 12V or 110V through the included transformer, and its premium price suits overlanders who want a light, high-altitude unit.

Price
$499.99
Brand
LF Bros

Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.

How it compares

Compared with the other diesel heaters on this site that list each value:

  • Weight is lower than 95% of 21 others: 9.24 lbs (4.19 kg)
  • Max operating altitude is higher than 71% of 28 others: 17,000 ft
  • Max operating altitude (m) is higher than 75% of 28 others: 5,182 m

Compare with similar products

Videos

Recommended videos may not be an exact match for this product. Check product details before purchase.

Review All about LF Bros Premium All-In-One Diesel Heaters · Underground Explorers Overland Overlanders who used LF Bros heaters for months walk through the N3 and how it differs from the N2 and N2 Pro.
Installation LF Bros N3 Diesel Heater install--Step-by-Step Guide for Van/Camper · LF Bros LF Bros' animated guide to connecting the N3's ducts, exhaust, power and controller in a van or camper.

Search YouTube for more LF Bros N3 videos

Specifications

These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase.

Model
N3
Popular brand
No

Core specs

Max heat output
5.0 kW

Controls

Auto start/stop
Yes
Thermostat mode
Yes
Timer
Yes

Power

DC input voltage
12V
AC adapter included
Yes

Physical Attributes

Housing material
Metal
Weight
9.24 lbs
Weight
4.19 kg

Altitude

Max operating altitude
17,000 ft
Max operating altitude (m)
5,182 m
Altitude adjustment
Automatic

Safety

Overheat protection
Yes

More specifications

Warranty
1 Year

Features

Details from the LF Bros N3 Amazon listing:

  • Better High-Altitude Performance: Tested above 17,000 ft, this diesel air heater automatically adjusts combustion with altitude, delivering steady warmth on high-altitude adventures. The imported Japanese glow plug ensures fast, stable ignition and reduces startup failures. At only 9.24 lbs, the sandblasted aluminum body speeds heat transfer and minimizes energy loss for efficient heat output. Ideal for alpine camping, ice fishing, winter hunting, and mountain cabins.
  • Power & Constant Temperature Modes: Enjoy two heating options designed for different comfort needs. Power Mode keeps the 5kw diesel heater running continuously at the selected power level, while Temperature Mode lets you set your desired temperature. Once the surrounding temperature rises 2°C above the set temperature, the heater automatically pauses and resumes heating when the temperature drops below the set point. This automatic temperature regulation helps maintain a comfortable environment and prevent overheating.
  • Fast Heating & Flexible 24-Hour Timer: Warm air starts flowing within minutes, helping you get comfortable quickly during cold-weather camping and outdoor adventures. Set the 24-hour timer for a single or multiple heating periods to match your schedule, saving time and reducing unnecessary power use. The LCD panel clearly displays operating status and key information for easy monitoring.
  • Exclusive Oil Leaking Proof: Our diesel parking air heater comes with a car-grade internal thread fuel tank cover, superior to ordinary simple lids. Using automotive sealing technology, it effectively stops fuel leakage and overflow and well suited for overlanding, road trips, and outdoor adventures where equipment is frequently moved.
  • Real Use Anywhere: Apart from supporting 12v battery, the kit includes a 110V transformer. You can plug the heater directly to 110V sockets. No fuss to buy extra parts and do the DIY work to use it in you garage or basement. Keep you feel toasty in RV,car, camper,trailer,etc in winter. Get prepared when the weather takes a turn
  • 6-Layer Built-In Protection: This parking air heater includes overheat protection, short-circuit protection, overvoltage protection, overcurrent protection, reverse connection protection, and surge protection. These safeguards help support reliable operation, so you can enjoy consistent warmth and greater comfort during everyday use.

Similar products from other brands

Chosen for their similar specifications and price.

Similar products from other brands
This productLF Bros N3 maXpeedingrods 5KW Portable Diesel Heater Self-Powered,Remote Control,Quiet | Self-Generating, with USB Output and Plateau Mode, Wireless Startup Quiet Car Heater for Camping Ice Fishing Tents Boats VEVOR XMZ-D2 HCALORY UNIT 2
Price $499.99 $699.99 $101.55 $169.99
Model N3 – XMZ-D2 UNIT 2
Popular brand No No – –
Heater type – All-in-one – Split
Max heat output (kW) 5.0 5.0 8.0 8.0
Max heat output (BTU/h) (BTU/h) – – 27,296 –
Heating area (m²) – – 25 27
Heating area (sq ft) – – 269 291
Fuel tank capacity (L) – 3.7 10.0 15.0
Fuel tank capacity (gal) – 1.0 2.6 4.0
Fuel consumption min (L/h) – 0.17 0.16 0.12
Fuel consumption max (L/h) – 0.48 0.62 0.35
Fuel consumption max (gal/h) – 0.127 0.164 0.093
Max runtime per tank (hours) – 8 16 –
Heat levels (levels) – – 10 –
Auto start/stop Yes – – Yes
Thermostat mode Yes – Yes Yes
Thermostat min (℉) – – 46 –
Thermostat max (℉) – – 97 –
Thermostat min (℃) – – 8 –
Thermostat max (℃) – – 36 –
Timer Yes – Yes Yes
Remote control included – Yes Yes Yes
Remote range (ft) – – 98 98
App connectivity – – Bluetooth –
DC input voltage 12V 12V 12V 12V/24V
AC adapter included Yes – – –
Running power draw (W) – – 40 –
Noise level (dB) – – 70 –
Housing material Metal – – –
Air duct diameter (mm) – – 77 –
Weight (lbs) 9.24 – 13.60 16.76
Weight (kg) 4.19 – 6.15 7.60
Length (in.) – 16.14 14.80 15.71
Length (mm) – 410 375 399
Width (in.) – 10.43 5.50 5.59
Width (mm) – 265 140 142
Depth/Height (in.) – 11.02 6.90 6.97
Depth/Height (mm) – 280 175 177
Max operating altitude (ft) 17,000 16,404 18,045 16,404
Max operating altitude (m) (m) 5,182 5,000 5,500 5,000
Altitude adjustment Automatic – Automatic Automatic
Operating temp min (℃) – -40 -40 –
Operating temp min (℉) – -40 -40 –
Overheat protection Yes – Yes –
Low-voltage protection – – Yes –
Certifications summary – CE FCC Part 15 statement –
FCC Part 15 compliant – – Yes –
CE marked – Yes – –
Warranty 1 Year – – –

Specifications last updated Oct 20, 2026.

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