Developed by South Korean engineers · 1-year warranty
The OX Diesel Heater X10 from OX OUTDOOR & EXTREME BY RBM brings controlled diesel heat to camping and overlanding. Developed by South Korean engineers, it keeps the heater outside and delivers warm air into your tent through ducts.
Plan suitable electrical power for startup, operation and cooldown. Keep power connected until the cooling cycle finishes.
Install the heater, fuel tank and exhaust outdoors. Follow the manual and use a separate working CO alarm. Heating performance and fuel use depend on tent size, insulation, weather and output. A battery, diesel, tent and optional heated floor are purchased separately.
Free U.S. shipping from our U.S. warehouses. Canada shipping: US$140. Includes a 1-year warranty, subject to RBM Outdoors warranty terms.
OX Diesel Heater X10 — 10 kW Portable Diesel Air Heater with Wireless Remote
Keep the heater outside and bring warm air into your tent through ducts. No firewood to split, logs to keep adding or stove ash to clean up.
Developed by South Korean engineers for controlled heat in cool and cold weather.
One carbon monoxide sensor in the heater; a second in the wireless remote inside your tent. Keep the remote charged, switched on and connected.
Built-in protection complements proper outdoor installation and ventilation. Use a separate working CO alarm as directed in the manual.
Choose by the heat your camp needs. X10 adds heating capacity; X5 is the lighter, more compact option.
$1,790 USD
For a lower heating demand and easier packing.
$2,390 USD
For a larger or more demanding camp that needs extra heat.
Included with both: wireless remote, two built-in CO sensors, MANUAL, AUTO, Stop & Go, timer and fan-only mode.
Your X10 package: heater, remote, ducts, exhaust and muffler, external tank, fuel line, power cable, U.S.-plug power supply and two transport bags. Battery, diesel and optional heated floor are separate.
Required heat depends on tent volume, insulation and weather. Two outlets do not provide separately set room temperatures.
Two selectable heating cores. Warm air inside. Remote control from your tent. See the controls and real field tests, then explore the connections. Choose a topic and press play for sound.
Choose A, B or A+B on the remote. A or B: one core heats. A+B: both cores heat.
Select A or B for one heating core, or A+B for both. This is the clearest way to understand what makes X10 different: two selectable sources of heat in one body.
Choose the output for the conditions. The two outlets do not provide independently set room temperatures.
About 70°F (21°C).
A close-up frame from the winter-camping test, held so you can read the thermometer.
This setup also uses an optional heated floor. It is one field observation, not a promised temperature or a test of the standard heater alone.
Watch the meter. Listen to the original operating sound.
First, beside the heater outdoors. Then, in the center of the tent. Close-up views make the changing decibel readings easier to see.
These excerpts use pauses without commentary and retain the original heater and background sound. Distance and surroundings affect the readings; playback volume is not a calibrated sound level.
Quick-connect fuel line. Connect the external diesel tank to the heater.
The external tank connects to the X10 through a quick-connect fuel line. Check the connection and fuel system before starting.
Prime an empty line only as directed in the manual. Fuel use depends on the selected output and conditions.
Connect the exhaust securely. Keep exhaust outside and away from tent openings.
Secure the exhaust and muffler components as shown in the installation instructions. Position the outlet away from people, tent openings and air intakes.
Keep the exhaust clear of snow, standing water and other obstructions.
Flexible ducts connect to the heater. Warm air goes into the tent. The heater stays outside.
The inner passage delivers warm air; the surrounding return path takes tent air back to the heater. Secure both parts and keep the passages open.
Recirculation does not replace the ventilation required by your tent and heater instructions.
Aim the swivel outlets. Direct the airflow toward your living area.
Position the outlets inside the tent and direct the airflow toward your living area. Keep the air path clear rather than pushing an outlet under bedding.
Plan the duct entry points before arranging beds, tables and other furniture.
12V DC power with an XT90 connection. Check startup demand. Battery sold separately.
The X10 needs a suitable 12V DC source. Check the voltage, polarity and startup capacity of the exact power-station port and cable you will use.
A large Wh rating alone does not prove compatibility. Allow for startup demand up to 130 W.
The heater and fuel tank stay outside. Warm air reaches your tent through the connected ducts.
Place the heater securely outdoors on a stable, noncombustible surface. The tank and exhaust stay outside too; a closed vestibule is not an outdoor location.
Route the ducts through suitable tent openings and follow the manual’s clearances.
The open air outlets sit inside the tent. Keep the outlets clear of bedding and gear.
The open ends of the ducts extend into the tent and deliver the heated air. The actual installation footage shows their correct position.
Keep outlets and return openings free of furniture, bedding and loose gear.
AUTO climate control: set your preferred temperature from about 46–97°F (8–36°C) on the wireless remote. The heater adjusts output toward your target, helping keep your tent comfortable as conditions change.
Stop & Go: a separate mode pauses and restarts heating as needed. It can reduce unnecessary fuel use; savings depend on weather, insulation and settings. Every restart needs startup power.
MANUAL: choose one of 10 heat levels when you want direct control of heating output.
Two independently selectable 5 kW heating cores deliver up to 10 kW of heat. Use one for a lighter heating demand, or both when you need more output. That is twice the maximum heat output of X5, with capacity to handle a more demanding camp.
Internal view for explanation only. Operate with the housing assembled. Heated area depends on insulation, weather and heat loss.
The heater, diesel tank and exhaust stay outdoors. Warm air enters through ducts, leaving more floor space for beds and gear. No wood to split, logs to carry inside or stove ash to clean up.
The coaxial ducts carry warm air in and return tent air through a separate passage. Keep the air openings clear.
Follow the installation clearances and ventilation requirements. Use a separate, working CO alarm.
A quick-connect fuel line supplies diesel from the external tank. Once the system is properly connected and running, it provides warm air without the repeated log-loading a wood stove needs.
Bring enough diesel and suitable electrical power for your trip. Fuel use varies with heating output.
Stop the heater and let it cool before refueling. Follow the supplied operating instructions.
The X10 has a rain-resistant housing designed for outdoor placement. Its aluminum body and protective corner bumpers suit a setup that stays outside while you enjoy the space indoors.
Follow the outdoor installation instructions. Protect power connections and the adapter, keep the remote indoors, and keep the heater out of standing water.
About 70°F (21°C) and 44 dB inside were reported in a winter-camping setup that also used an optional heated floor.
Sound was measured outside by the heater and inside the tent. Watch the meter in the video; playback volume is not a calibrated sound level.
The tent model and size, outside temperature, elapsed heating time and selected mode are not documented here. These observations are not a controlled test of the standard package or a promised result.
Meet the components of the X10 package, from the two air paths to the external diesel tank. The heater and accessories travel in separate bags.
One X10 body with two heating cores and a carry handle.
Remote with batteries. Keep it in the heated living space.
Two ducts, each 2.36 in (6 cm) in diameter, carry warmed air into the tent.
Two ducts, each 4.09 in (10.4 cm) in diameter, form the coaxial air system.
Exhaust components keep combustion gases outside the living space.
5.3 US gal (20 L) capacity. Diesel is purchased separately.
About 118.1 in (3 m) of fuel line with a check valve.
Separate storage for the heater and accessories.
10 kW describes heat from diesel. It is not a 10,000-watt load on your battery. The electrical system runs the fan, pump and controls.
| Specification | X10 | For your camp |
|---|---|---|
| Heating output | Up to 10 kW · two 5 kW cores | Select A, B or A+B to suit your heating needs. |
| Temperature control | AUTO: about 46–97°F / 8–36°C | Output adjusts toward the selected temperature; results depend on heat loss. |
| Manual control | 10 power levels | Choose the heating level directly. |
| Heater power input | 12V DC · XT90 | AC operation uses an external power supply. |
| U.S. configuration | U.S. plug on the power-supply cable | No plug adapter needed. The supplied power unit converts AC to the heater’s 12V DC input. |
| Electrical draw | 10–80 W while running | Allow for startup demand up to 130 W and keep power on through cooldown. |
| Fuel | Diesel | Use fuel suitable for the outside temperature and follow the supplied manual. |
| Fuel consumption | About 0.04–0.29 US gal/h (0.15–1.10 L/h) | Actual use varies with output and operating conditions. |
| Tank capacity | 5.3 US gal (20 L) | External tank; runtime also depends on your power supply. |
| Body dimensions | 18.1 × 13.4 × 12.2 in (46 × 34 × 31 cm) | Allow extra room for ducts, connections and exhaust. |
| Body weight | 36.4 lb · 16.5 kg | Fuel, battery and accessories add to the transport weight. |
| Operating functions | MANUAL · AUTO · Stop & Go · timer · fan | Fan-only mode circulates air; it is not air conditioning. |
| Outside operating temperature | −40 to 68°F (−40 to +20°C) | Use winter-grade diesel appropriate for the conditions; keep air paths and exhaust clear. |
| Warranty | 1 year | Subject to RBM Outdoors warranty terms. |
Follow the supplied manual for the complete installation and operating procedure.
Off-grid, bring a compatible power station or a suitable separate 12V battery. At a powered campsite, use the supplied power unit with its U.S. plug. No plug adapter is needed. The battery or power station is sold separately.
12V DC inputUse the correct cable and polarity. Never connect 24V or AC directly to the heater.
Up to 130 W at startupA 12V / 10A port provides only 120 W and may shut off. Check the actual port—not just the power station's advertised capacity.
10–80 W while runningPlan energy for your heating level, startup and cooldown. An AC connection also needs headroom for the power supply's losses and startup.
AUTO climate control adjusts heating output toward your selected temperature, from about 46–97°F (8–36°C). Change the target on your wireless remote without stepping outside. MANUAL lets you select one of 10 heat levels. Configure automatic stop/restart separately with AUTO STOP & GO.
Use the timer according to your remote's instructions. Disable timer and automatic-start functions before refueling, transport or maintenance.
Disable the timer and automatic restart, stop the heater normally, and wait for complete cooldown before removing power. Disconnect ducts, exhaust and fuel line after cooling. Close the tank vent for transport as instructed and check for leaks.
The X10 heater occupies its large bag; store accessories separately. Keep hot exhaust parts out of the bags until they have cooled.
Inspect the fuel hose, quick-connect fittings and wiring. Make sure the ducts and exhaust are clear and all connections are secure. Check stored diesel and use fuel suitable for cold weather.
Reassemble the system, open the tank vent as instructed and check for leaks before reconnecting power and starting normally.
Try the power station, output port, adapter and cable you intend to take. A large battery capacity does not guarantee that a particular output can handle startup. With a dedicated 12V battery, use an appropriate protected connection and preserve power for cooldown.
A separate battery is preferable to relying on the vehicle's starting battery, so you retain energy to start your vehicle.
The right heater starts with your tent, your climate and your power plan.
Tell us about your setupWe consider the volume of the space, insulation, tent fabric and outdoor temperature. Tell us about your tent and camping conditions so we can help you choose a suitable model. Heating needs depend on more than floor area.
X10 adds a second selectable 5 kW heating core, giving up to 10 kW and two warm-air outlets. Choose it when your camp needs more heating capacity. The tradeoff is a larger, heavier body: 36.4 lb (16.5 kg), versus 22.5 lb (10.2 kg) for X5.
Both have a wireless remote, two CO sensors, MANUAL, AUTO, Stop & Go, timer, fan-only operation and backup start/stop on the body. The remote is included with X5 too.
Choose AUTO when you want to set a target temperature instead of adjusting heating levels yourself. The heater varies output toward your selected temperature as conditions change. Actual tent temperature depends on insulation, weather and heat loss.
AUTO regulates output; automatic stop/restart is a separate Stop & Go function. Plan enough electrical power for startup, operation and cooldown, and keep power connected until the cooling cycle finishes.
OX includes rooftop-tent camping among its heater applications. Check duct reach, entry openings, secure outdoor placement and the heat your tent actually needs. A compact rooftop tent may be better served by the smaller X5; X10 is the higher-output option.
Check the exact output port, voltage, polarity and startup rating. The heater takes 12V DC, draws a stated 10–80 W while running and may need up to 130 W during startup. A suitable AC output can power the compatible AC-to-DC adapter. Battery capacity alone does not establish compatibility.
No. About 44 dB was reported inside one winter-camping setup. Noise varies with distance, output, airflow and background sound. Watch the outside-to-inside meter footage for the actual readings; your playback volume is not a calibrated measure.
The roughly 70°F / 21°C reading came from one winter setup that also used an optional heated floor. Tent size, insulation, ventilation, wind and outside temperature all affect the result. It is not a fixed temperature guarantee.
No. A battery or power station, diesel, tent and separate CO alarm are purchased separately. The boiler and heated floor seen in the winter test are optional equipment and are not part of the standard X10 heating package.
U.S. orders ship free from our U.S. warehouses. Shipping to Canada is US$140 for X10 and US$100 for X5.
Multiply your expected average electrical draw by the hours you need, then allow for losses and reserve. At an assumed average of 40 W for 10 hours, you need 400 Wh of usable energy. Reserving 20% of nominal capacity gives an illustrative target of 500 Wh.
This is a calculation, not a runtime guarantee. Starting, restarts, cold weather and power conversion affect the result. A lead-acid battery needs a larger reserve appropriate to its permitted discharge depth.
Runtime ≈ usable Wh ÷ average W. At an assumed 40 W, 1,000 Wh gives 25 hours theoretically, or around 20 hours if 20% is reserved for losses and margin.
That is an example, not a tested promise. Freezing temperatures, AC conversion and your actual heating level can shorten runtime. Carry enough diesel too, and keep power connected through cooldown.
W (watts) is power: how much electricity the system is using at a moment. Wh (watt-hours) is stored energy: the number to use when comparing runtime.
If a battery lists only Ah, multiply by voltage: 100 Ah × 12 V = 1,200 Wh nominally. Not all nominal energy is available for use. The A rating on an output port is its current limit; 12 V × 10 A = 120 W.
Read the English X10 manual before use. It covers installation, startup, control settings, shutdown, maintenance and troubleshooting.
U.S. package: the supplied power unit has a U.S. plug; no plug adapter is needed.
Download the X10 manualUse a separate, working CO alarm. CO sensors are located in the heater and remote. Keep the remote in the heated living area; its CO-sensor protection is unavailable if it is switched off, discharged or disconnected.
Built-in sensors do not replace proper outdoor installation, ventilation, supervision or a separate alarm. Follow the manual supplied with your heater.
For cool-weather weekends, cold-season basecamps, fishing trips and hunting camps. Controlled diesel heat offers a practical alternative to a traditional wood-burning stove for heating your tent—with no firewood to split or logs to keep adding.
OX heating systems also serve rooftop-tent camping. Match the heater to the tent's size, insulation and heat loss, and check duct reach and secure outdoor placement.
A smaller rooftop tent may suit X5 better. Choose X10 when your setup calls for more heating capacity.
Manufacturer rooftop setup shown with the earlier X3. X10 fit and connections need to be checked for your tent.
RBM Outdoors — Exclusive distributor of OX Outdoor & eXtreme in the U.S. and Canada.
U.S. power configuration1-year warrantyWatch the X10 connected outside a 17.2 Pro tent, then see the air outlets and thermometer inside.
A closer look at the X10 in the field: outdoor placement, controls and connections. Tap any photo to enlarge.
Setup details shown. Follow the supplied operating instructions for installation and use. See What's included for your package.
