Combusto – The Overlander’s Weather-Resistant Diesel Heater

Combusto 5kW is built for overlanders facing the harshest winter conditions. With powerful, dependable heat, it keeps you comfortable when...
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Color: Backordered- Ships in Late Sep
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    Sale price $649.00Regular price
    Regular price $649.00

    Combusto – The Overlander’s Weather-Resistant Diesel Heater

    Combusto – The Overlander’s Weather-Resistant Diesel Heater

    Combusto 5kW is built for overlanders facing the harshest winter conditions. With powerful, dependable heat, it keeps you comfortable when temperatures drop so you can stay focused on the adventure.

    Combusto Mini 2kW delivers the same premium performance, with an optimized internal layout that carries over the key features of the 5kW model in a lighter, weekend-ready package.

    The Core: Both models feature a high-elevation-rated heating core housed in a military-grade hard case, delivering consistent performance at elevations up to 13,000 feet.

    Most portable heaters were not designed around the realities of overlanding. Combusto was.

     Specs & FAQs 

    5kW Combusto

    Case + Fuel Tank Dimensions: 19” × 10” × 16”
    Fuel Capacity: 6 L (≈ 1.5 gal)
    Weight: 20 lbs

    2kW Combusto

    Main Case Dimensions: 16” × 10” × 8”
    Fuel Capacity: 4 L (≈ 1 gal)
    Weight: 10 lbs

    What’s Included
    • Combusto Hot Box
    • 110V Power Cord
    • LCD Control Panel with 8 ft Cable
    • Wireless Remote Controller
    • Exhaust Muffler & Pipe
    • Hot Air Ducting

    This unit is intended for quick, ground-level run-and-gun use. For safety reasons, do not bolt the heater to your racks or operate your vehicle with the heater bolted in place. Always use a quick-release style mounting solution instead.

    Our customers have successfully tested these mounting methods:

    -Diesel Heater Exterior Hangers (Affordable) 

    -The Mounting Company Bracket L

    -Croc Hinge Recovery Bracket

     

    5kW Combusto

    Best for deep winter, larger spaces, and extended overlanding setups. Delivers maximum heat output for extreme cold, multi-person tents, or enclosed workspaces. Ideal if you camp at high elevation or in sustained freezing conditions.

    2kW Combusto

    Best for compact setups and travel-light builds. Provides efficient, reliable heat for smaller tents, solo campers, or short trips where portability and low power draw matter most.

    Quick Recommendation

    Choose the 5kW if you camp in harsh winters or need serious heat.

    Choose the 2kW if you want a compact, efficient heater for lighter, mobile setups.

    All power stations — even entry-level units — can run the Combusto using our new 110V adapter. The only time you may run into breaker-tripping issues is when using a 12V cigarette-lighter plug, as those ports are not designed for high startup loads.

    Power Draw: Both the 2kW and 5kW models pull 8–15 amps during startup, then settle to 1–3 amps while running.

    Fuel Consumption:

    2kW model: ~0.2 L/hour

    5kW model: ~0.4 L/hour (depending on heat level)

    No — the Combusto diesel heater isn’t an Alibaba rebrand. It started as a concept and was turned into reality by a real USA based overlanding nuts.

    This isn’t rocket science or a patented invention — anyone handy could throw a heater into a Pelican-style case. The difference is we found a reliable core, we built and refined it around this engine, and stand behind it with real support. That’s what makes Combusto worth owning.

    Out in the market, you’ll find $100 heaters that fail fast, and $2,500 builds that feel overpriced for something you use seasonally. We built Combusto to sit in the sweet spot: a solid, dependable mid-tier option that balances quality, reliability, and price without the nonsense.

    Warranty

    We stand behind what we build. If anything comes up—whether you’re in or out of warranty—we’re here to help. That may mean troubleshooting an error code, diagnosing an issue, or walking you through a part replacement.

    Returns

    You may return your Combusto within 7 days of delivery for any reason, provided it has not been used or fueled. 

    A 25% restocking fee plus return shipping costs will apply.

    Heaters that have been used, are missing their original packaging, or show signs of wear may be subject to an additional restocking fee.

    Because fueled Combusto is classified as a hazardous-material item for shipping purposes, return shipping arranged through us may involve additional carrier requirements and fees. If a return is needed, we encourage customers to arrange return shipping themselves when possible.

    For the 2026 Winter Batch, we’ve refined the overall layout for improved reliability and efficiency:

    • All fuel lines now use soft PTFE tubing with quick release, helping prevent loose connections caused by wear on harder rubber tubing.
    • Cold-side components are now positioned on the right, while heat-generating components remain on the left.
    • The power port and air intake have moved to the right, with the exhaust and hot-air outlet on the left.
    • The previous intake ducting has been removed for more direct and efficient airflow.

    Customer Reviews

    Overall rating: 4.9 / 5 from 19 reviews.

    This heater is great. It’s very quiet, well built and puts out a good deal of heat. I have a Jackery 2000 running it and it appears to be able to power it for almost 60 hours on low. I’ll be testing it extensively in the coming year. So far, I am very satisfied with this purchase. I’d recommend it for those of us who are too lazy to build our own. 😂

    Combusto - Overlander's All in One 5kw Diesel Heater

    The manual was impressive and well written, with pro tips and personal feedback on operating the unit. It really feels like Yotto Overland put effort into this build. Everything is solid, only one adjustment I made to the design was relocating the power and LCD panel connector to the right side of the heater. Since they originally shared the same side as the hot air outlet, moving them makes for a more practical setup.

    Combusto - Overlander's All in One 5kw Diesel Heater

    Customer photo review of Combusto - Overlander's All in One 5kw Diesel Heater

    Works perfectly for us weekend warriors — solid build quality, easy setup, and great heat output even in the Colorado cold. Customer service was next level — had a question and Miles answered at midnight. We were warm and toasty in no time. Highly recommend!

    Combusto - Overlander's All in One 5kw Diesel Heater

    This thing is amazing. When it arrived, the carrier damaged a part. Miles gave me thorough instructions on how to temporarily fix it and sent me a new unit to replace mine with. The one night I used it, it was great. I wouldn’t hesitate to buy a product from Yotto based purely off of their customer service. Hopefully they start making some 4runner and GX parts soon!

    Combusto - Overlander's All in One 5kw Diesel Heater

    We’ve purchased a total of six Combusto units for our touring company over the past two years, and we’ve definitely seen the product improve over time. Our first unit used metal clips throughout the fuel line system, while the newer versions switched to soft tubing, which gives everything a much cleaner and more refined look. This thing is really well built. What’s been most impressive is the reliability. All six units are still running strong with no major failures, even with heavy use about four days a week. The build quality has been excellent, and our customers have been extremely happy.

    Combusto 2/5kW – The Overlander’s All-in-One Diesel Heater

    Very fast shipping! Well built and thought out design, instructions clearly written by someone who speaks English and knows how to operate the heater. Everything was straight forward and it works as it’s supposed to. Read the start up instructions there’s important info in them regarding the initial process. Well done Yotto!

    Combusto 2/5kW – The Overlander’s All-in-One Diesel Heater

    Very cool heater. I think this would heat a small well insulated building. Puts off a ton of heat. The only thing that worries me is that the controls dont seem very durable and i will also be running this unit outside in all weather and im afraid the electrical connections may not hold up well to getting wet.

    Combusto 2/5kW – The Overlander’s All-in-One Diesel Heater

    I wouldn’t call it plug-and-play, but it’s definitely fun learning how this heater works. You do need to be a bit handy when it comes to troubleshooting a few things. Overall, I’m really happy with the product — it feels much more solid and thoughtfully built than my previous $300 Hcalory heater. It’s also impressively quiet. Easy 5 stars from me!

    Combusto - Overlander's All in One 5kw Diesel Heater

    We ordered 4 units last winter and added 6 more this season. We use them on our ice fishing and aurora expeditions, and I have to say the current version has made some great improvements—especially in the manual, overall build quality, and a core unit that runs noticeably quieter than last year’s model. As a touring company based in Fairbanks, these upgrades make a real difference for both our team and our customers.

    Combusto - Overlander's All in One 5kw Diesel Heater

    Right before I primed the unit, I noticed a fuel line had disconnected from the bracket. If I had gone straight into prime mode, it probably would’ve leaked everywhere. Luckily, it was a quick fix, and customer service was extremely responsive and attentive. Not a big deal overall—I’d still recommend this product to anyone. Just make sure to do a thorough inspection before priming!

    Combusto - Overlander's All in One 5kw Diesel Heater

    Store owner replied: Thank you very much for your understanding and kind note. We always perform a test run, but unfortunately this issue may occurred during shipping. Moving forward, we’ll reinforce each bracket more precisely and also update our startup instructions to include the double inspection step. We truly appreciate your feedback. -Miles

    Great Product! The 5kW was honestly overkill for our Gazelle—we had to dial it down and even leave a zipper cracked open through the night. Before this heater, my wife and I would always end up with cold feet, even when we zipped two zero-degree down sleeping bags together. With this heater, though, we stayed perfectly warm using nothing more than a costco blanket in 20°F weather. It kept us cozy and toasty all night long.

    Combusto - Overlander's All in One 5kw Diesel Heater

    Store owner replied: Great to hear! Enjoy!

    We originally bought this heater as a backup for our family road trip to Alaska. To our surprise, it ended up working even better than the built-in diesel heater in our sprinter. The kids especially loved it when they camped out in a tent beside the RV—it kept them warm and comfortable all night (they said it felt like “camping with central heating”!). On top of that, we really appreciated the manual that came with this heater. It was actually clear and easy to follow—unlike others we tried that read like they were run through Google Translate. This one made setup almost fun, which is something I never thought I’d say about an instruction manual.

    Combusto - Overlander's All in One 5kw Diesel Heater

    CAUTION