Premium Diesel Heater — In a Bunker

Rugged and reliable, this thoughtfully designed heater is built for weekend adventurers to hardcore overlanders. Fully waterproof and BUILT TOUGH to face harsh weather conditions, it delivers toasty warmth whether it’s a rooftop tent, ground shelter, or garage workspace.

High-Altitude Performance

Equipped with built-in elevation and cold-air sensors, the unit delivers consistent, dependable heat at altitudes up to 13,000 feet — making it ideal for high-mountain adventures and challenging terrain.

Fuel Consumption & Efficiency

On its lowest setting, a full 6-liter diesel tank typically lasts three nights—even in extreme cold. According to most user feedback, you won’t need to run it at full blast while sleeping—unless you want to wake up roasted!

How Does It Work? 

The diesel heater burns fuel in a engine to make heat. A fan pulls in clean air, passes it over a hot metal part inside, and transfer the warm air into your space by ducting. The exhaust goes outside through a pipe with muffler — so only clean, dry heat stays inside. It’s safe, fuel-efficient, and great for staying warm in cold or high places.

• Professional Assembled: Combusto is proudly assembled in the USA.
• Build Tough: Military-grade hard case for optimal durability.
• High Efficiency: Powerful heating while maximizing diesel efficiency for extended operation.
• Weather Resistance: The combusto can withstand harsh weather.
• Enhanced Safety: Equipped with safety features like overheat protection and automatic tip over shutdown for worry-free operation.

Main Rugged Case: 18”x16”x8”

Rugged Fuel Tank: 4.5” x 15” x 16”

Fuel Capacity 6L= 1.6 Gallon

Minimum Weight: 20 lbs

Material: Polypropylene with rubber seals

Whats in the hot box？

• 12V cigarette lighter plug
• 110v Power Adapter
• 3 inch Ducting
• LCD control panel
• Remote controller
• Exhaust muffler/pipe

• A reliable power station or power inverter is mandatory to run this unit properly.
• Some entry-level power stations may not handle the start-up surge of this heater, so be sure your setup can deliver enough output.
• If your main power source struggles to start the engine, switch to a 120V plug as a backup option.

By purchasing Combusto, you agree to our policies below:

Warranty:

We offer repair warranty for six months from the date of delivery. Our warranty covers troubleshooting and the replacement of faulty components. To qualify for warranty service, the unit or parts must be shipped back to our office with the fuel tank disconnected.

Warranty Exclusions

Your warranty will be void under the following conditions:

• Any modifications to the original design.
• Misuse or failure to follow the operational guidelines.

Return Policy:

We accept returns on unused Diesel Heaters within 7 days of delivery, with a 20% restocking fee. Return shipping fee is customer's responsibility. 

The item must be returned in its original condition, with all accessories included and unused. 

We do not accept returns on USED diesel heater.

Liability:

By purchasing and using Combasto, you acknowledge and agree that:

• You must follow the guidelines on operating this machine.
• Any user error, improper installation, modifications, or misuse will  void any warranty or claim.

Before your overland trip:

1. Read through the instruction manual, to get an idea of it.
2. Save this PDF File.
3. Please prime it in an open space area before your first outdoor use.