Sparks Overland 4kW Portable BASECAMP Diesel Heater
High-output heat. Quiet operation. Built for larger camp setups.
Now Standard With Every BASECAMP Heater
110V Wall Adapter + Sparks Overland Load Out Cube
Please allow 4–6 weeks for delivery after your deposit is placed.
The Sparks Overland 4kW Portable BASECAMP Diesel Heater is our higher-output option for customers heating large ground tents, wall tents, enclosed shelters, vans, trailers, and larger camp spaces.
⚠️ IMPORTANT: NOT FOR ROOFTOP TENTS
The 4kW BASECAMP is engineered strictly for large-volume enclosures. Because it produces an immense amount of heat, using it in any rooftop tent—regardless of the tent's size—will result in severe overheating and poor temperature modulation. For all rooftop tents and compact sleeping spaces, please see our 2kW Mini Diesel Heater.
After more than two years of testing, refinement, and real-world use, we built this system around the things that matter most in camp: strong heat output, quiet operation, low electrical draw, simple setup, reliable altitude performance, and easy storage.
At its core is our Sparks-spec 4kW diesel heater platform, integrated into our aluminum portable enclosure with a 1.9-gallon stainless steel fuel tank, premium fuel and electrical components, Bluetooth control, 90mm quick-connect ducting, and a complete accessory system.
And now, every BASECAMP Heater includes both a 110V wall adapter and our Load Out Cube, giving you one organized place for your ducting, power cables, funnel, adapters, caps, and heater accessories.
Built for Bigger Spaces
The 4kW BASECAMP is designed for applications where a 2kW heater simply doesn’t have enough reserve capacity.
It is an excellent match for:
- Large ground tents
- Wall tents
- Enclosed camp shelters
- Larger vans and camper interiors
- Trailers
- Hunting camps
- Ice-fishing shelters
- Off-grid cabins and workspaces
-
Portable emergency heat applications
The additional output provides more heating capacity for larger interiors, greater heat loss, and colder conditions.
For all rooftop tents and compact sleeping spaces, the 2kW model is required to provide proper modulation and temperature control.
Quiet, Powerful 4kW Performance
More heat shouldn’t automatically mean more noise.
The Sparks 4kW platform combines a brushless motor, refined fan control, and low-noise metering pump to reduce fan noise, vibration, and repetitive pump ticking commonly associated with portable fuel heaters.
The result is a higher-output heater that remains suitable for overnight use while providing significantly more heating capacity than our 2kW Mini.
Performance Highlights:
- Up to 4.0kW heat output
- Approximately 1.0kW minimum output
- Heated airflow up to 120 m³/h
- Automatic altitude compensation
- Brushless motor
- Low-noise metering pump
- Bluetooth app control
- Approximately 8A startup draw
- Approximately 1.5–3.2A running draw
-
Fuel consumption approximately 0.18–0.55 L/hr
90mm Quick-Connect Duct System
No pile of hose clamps. No rebuilding the duct system every time you set up camp.
The 4kW BASECAMP uses our 90mm quick-connect hot-air duct system, giving the higher-output heater the airflow capacity it needs while keeping setup fast and simple.
The included expandable aluminum duct packs down compactly for transport and extends when it’s time to set up.
Attach the duct in seconds. Run it into your tent or shelter. Pack it back into the Load Out Cube when you’re done.
110V Wall Power — Included
Every 4kW BASECAMP now includes our 110V AC wall adapter.
Plug the adapter into a standard household outlet and connect the heater through its 12V power input.
That gives you another way to run the heater when shore power is available at home, in a garage, at a powered campsite, or anywhere you have access to standard 110V AC power.
You still retain the included 12V vehicle-style power connection for portable and off-grid operation.
Sparks Overland Load Out Cube — Included
Portable equipment is only convenient if all the pieces stay together.
The included Load Out Cube is designed to carry the heater’s accessory system in one organized case.
Use it to store:
- Power cables
- 110V wall adapter
- 90mm duct
- Quick-connect fittings
- Fuel funnel
- Intake travel cap
-
Small adapters and hardware
Instead of cables, fittings, and ducting ending up in three different bins, the complete support kit stays together and ready to go.
Stainless Steel Fuel Tank
Inside the enclosure is a 1.9-gallon stainless steel diesel tank designed specifically around the portable heater package.
We use metal rather than a basic external plastic fuel tank because it creates a cleaner, more durable, integrated system for transport and repeated field use.
The low-profile tank includes a dedicated fill point and pressure-management system and is securely mounted within the enclosure.
Diesel-Specific Fuel System
The entire fuel system is configured specifically for diesel operation.
That includes:
- Diesel-compatible fuel line
- Metering pump and filtration
- Secure connections
- Integrated stainless fuel tank
-
Combustion tuning designed for diesel
The result is a compact system built around one fuel source from tank to burner.
Bluetooth Control
Control the heater without leaving your sleeping setup.
Bluetooth connectivity allows compatible heater functions to be controlled from your phone, including output and temperature adjustment.
You also retain the dedicated physical controller mounted directly on the heater.
Isolated Combustion System
The heater uses a sealed combustion circuit separate from the heated-air stream.
Combustion air is drawn from outside the heated space, while exhaust is routed externally according to the installation instructions.
The air being heated and delivered to your tent, camper, or shelter does not pass through the combustion chamber.
As with any fuel-burning heater, the combustion intake and exhaust must remain outside the occupied space, and the heater must be operated according to the supplied safety instructions.
Premium Components Throughout
We didn’t build the 4kW BASECAMP around the cheapest collection of parts we could find.
You’ll find details such as:
- Stainless exhaust components and muffler
- Sealed electrical connectors
- Quality diesel-compatible fuel line
- Stainless fuel tank and silicone connections
- 90mm aluminum expandable hot-air ducting with quick-connect duct hardware
- Brushless heater motor
-
Purpose-built enclosure and mounting hardware
They’re small details individually. Together, they’re what make the finished heater feel like a complete system.
Assembled & Tested in Colorado
Each Sparks Overland portable heater is assembled, integrated, and tested in Colorado before shipment.
The heater core, enclosure, fuel system, wiring, duct connections, tank, and accessories are brought together as a complete Sparks Overland system rather than simply shipped as a collection of components.
What’s Included
Every Sparks Overland 4kW Portable BASECAMP Diesel Heater includes:
- Sparks Overland 4kW diesel heater system
- 1.9-gallon stainless steel fuel tank
- Integrated heater controller
- Mountable aluminum legs
- 90mm quick-connect hot-air duct system & expandable aluminum ducting
- 110V AC wall adapter & 12V vehicle-style power cable
- Sparks Overland Load Out Cube
- Silicone fuel funnel & air-intake travel cap
-
Instruction manual
Specifications
- Heat Output: Up to 4.0kW (Minimum: ~1.0kW)
- Fuel: Diesel
- Fuel Consumption: Approx. 0.18–0.55 L/hr
- Heated Air Volume: Up to 120 m³/h
- Electrical System: 12V DC (Startup: ~8A | Running: ~1.5–3.2A)
- 110V Operation: Included AC-to-12V wall adapter
- Duct System: 90mm quick-connect
- Altitude Compensation: Automatic
- Fuel Tank: 1.9-gallon stainless steel
- Dimensions: Approx. 20” × 12” × 12.5”
- Weight: Approx. 36 lb / 16.3 kg
-
Bluetooth: Yes
Why the 4kW BASECAMP?
Because some camps really do need more heat.
The 4kW BASECAMP is built for customers who want higher heat output for larger spaces and colder conditions while still keeping the portability, quiet operation, low electrical demand, and clean setup of the Sparks Mini platform.
