10 Best Diesel Heaters for Camping (October 2026) Trusted Reviews

Camping in cold weather comes down to one number: how much heat you can move into a small space without wetting everything out. A diesel air heater burns fuel in a sealed chamber outside your tent or vehicle, then pushes only clean warm air inside through a duct. That dry heat is the reason the best diesel heaters for camping keep showing up in overlanding kit lists even when propane heaters cost less to buy.

We spent weeks reading the owner feedback on ten of the most-reviewed portable diesel heaters on the market, comparing heat output, fuel consumption, 12V power draw, tank size, altitude behaviour and noise. This roundup covers all-in-one boxed units you can drop in a tent, split units for a van build, and the 2KW and 5KW options that suit smaller shelters. Every rating and review count below comes straight from the manufacturer listing data we checked on 2026.

Safety first, before any product. A diesel heater burns real combustion fuel, so the unit itself belongs outside your sleeping space, the exhaust pipe must run away from every opening, and a working carbon monoxide detector belongs inside with you. Never run any of these heaters inside a closed tent or vehicle with the exhaust pointed in. Our advice is a 12V CO alarm within a few feet of your head, every single night, no exceptions.

If your setup is a fixed van or trailer rather than a tent, it is also worth reading how we think about fixed heating hardware on the site, from our baseboard heater guide to our greenhouse heater picks, since the same combustion and thermostat logic applies.

Top 3 Picks for Best Diesel Heaters for Camping in 2026

The three units below are the ones we would put in a truck first, based on the combination of owner rating, review volume and how few reported failures we could find. The VEVOR CY-32 leads on sheer evidence volume, with well over 1900 reviews behind it. The LF Bros N2 wins on multi-voltage flexibility, and the VEVOR XMZ-D1 is the pick if app control and high-altitude rating matter to you.

Quick Overview: Best Diesel Heaters for Camping in 2026

The table below is the fast version. Every unit heats either a tent, a pickup sleeper cab, a campervan or a small RV, and every one of them runs on a 12V supply that you can carry separately from your vehicle battery. Read the full review for the model that matches your shelter size before you commit.

Three things matter more than the label on the box. First, size the output to the shelter rather than to your ego, because an oversized heater cycles on and off and wastes fuel. Second, size your battery for the startup surge, not the running draw, since the glow plug pulls far more current for the first few minutes than the steady state. Third, check the altitude behaviour, because thin air changes the fuel-to-air ratio and a heater that has not compensated will soot up and shut down.

1. VEVOR 8KW All-in-One Diesel Heater – Best Overall Pick

This is the unit we would hand to a first-time camper who wants the shortest path from a cold tent to a warm sleeping bag. The VEVOR CY-32 is a true all-in-one box: heater, fan, 5L tank and control board in a single metal case that you set on the ground outside the shelter. Owners consistently report useful heat inside roughly ten minutes of startup, which matches the listing claim.

The 161-215 sq ft coverage figure lines up with a two-person tent, a pickup camper shell or a small trailer interior, and the 0.18-0.36 L/h consumption figure means a full 5L tank carries you through a night comfortably. The temperature dial runs from 32 to 104F, and the 98ft remote means you can start it from inside your sleeping bag rather than crawling out into the cold.

Two details make this heater easier to live with than the price suggests. The exhaust pipe has a heat-insulated shield, which matters when you are placing the unit close to a fabric tent wall, and the fuel cap is leak-proof with a visible gauge so you can see how much you have without opening anything.

What held it back slightly is documentation. Owners regularly mention that the written instructions are thin and that they leaned on setup videos instead, plus the need to prime the unit and run a proper gasket service at the service interval. A smaller but real group of buyers reported a control board issue where the unit did not shut down at the setpoint, which is worth knowing about if you are running it unattended overnight.

Who this heater suits

This is the pick for a weekend camper in a tent or a pickup sleeper cab who wants a heater that works out of the box with no drilling and minimal wiring. Reviewers report putting it to work in campers, trailers, vans and small workshops, and the 18.19 lb weight means one person can move it when the site changes.

If you want phone control from bed, or if you plan to camp high enough that air density matters, one of the app-controlled units further down this list is the better match, because the CY-32 lists an altitude rating under 9843 ft.

Who should skip it

Skip it if you are not willing to prime and service the unit, or if you need it to hold a large campervan on the lowest setting all night. It is also the wrong call if you have no plan to carry a dedicated 12V supply, because the startup draw is the real constraint, not the 3A running figure.

If you sleep very lightly, note that reviewers mention fuel pump ticking is audible on low settings for this model, though it becomes hard to hear once the blower reaches full speed.

2. LF Bros 5KW Diesel Heater – Best Value Multi-Voltage Pick

The strongest argument for the LF Bros N2 is voltage flexibility. Most competitors in this roundup need a separate inverter or a second wiring run if you want to run from mains power, and this one ships with a transformer so the same box works on 12V, 24V or 110V.

Output is quoted at 4700-17000 BTU/h across a 215-269 sq ft band, which is a comfortable match for a campervan interior or a mid-size tent. Consumption runs 0.18-0.53 L/h depending on the setting you choose, and the working temperature range of -40F to 104F means it is not fussy about conditions.

Two practical details stand out in the owner feedback. The remote controller arrives pre-paired, so there is no pairing ritual at 6am in the rain, and the internally threaded fuel tank cap is genuinely useful when you are driving on washboard roads with the heater slung in the back.

The heavier points to weigh are physical. At 11.8 kg the unit is not something you want to reposition often, and the rectangular box shape narrows where it can sit compared with a round-bodied separate unit.

Who this heater suits

Choose this if your power situation changes day to day, for example running from the vehicle battery while driving and from a mains outlet when you are parked at a site with a hookup. It is also a sensible match for anyone heating an RV, a car, a trailer or a basement space with one box.

Buyers single out the documentation here, which is a real change from most budget heaters of this shape, and the included install materials mean you are not hunting for fittings on the first night.

Who should skip it

Skip it if your shelter is larger than roughly 269 sq ft, since owners who wanted more heat for bigger spaces moved up a size. It is also a poor fit if your mounting plan requires a low, flat or under-seat profile, because the tall box form factor will not cooperate.

If quietness at the lowest setting is your top priority, look at the units further down with a mute filter or silent fuel pump, because this model does not advertise that feature.

3. VEVOR 8KW All-in-One with App Control – Best for High Elevation

Control options are where this VEVOR separates itself. Alongside the standard remote and LCD panel, the XMZ-D1 pairs with a phone app out to about 30 meters, so you can start a heat cycle, set a preheat timer and check the outlet temperature without leaving the sleeping bag.

The runtime figure is the other headline. With a 5L tank and consumption of 0.16-0.62 L/h, the listing quotes up to eight hours of heat, which comfortably covers a long night on a low or medium setting. The aluminum heat exchanger is sandblasted, and owners report warming a 215-269 sq ft space in about ten minutes.

For mountain campers the automatic altitude compensation is the feature that matters most. It is rated to 18045 ft, and in practice automatic adjustment is what separates a heater that keeps running at elevation from one that builds carbon and shuts itself down after a night or two.

Two honest caveats. At 22.4 pounds it is one of the heavier units in this roundup, so lifting it into a rooftop tent is a two-person job. And the ducting hardware is not included, so budget time to source a hot air hose and make sure transitions are clean enough to avoid tripping the over-temperature protection at 270C.

Who this heater suits

This is the one to buy if you camp high, run long multi-night trips, or simply like starting the heater from your phone before you climb out of the bag. The auto start-stop behaviour and the timer function make it a good fit for people who are asleep for most of the heating cycle.

It also suits anyone who does not want to modify their vehicle, since the installation-free all-in-one design means no drilling and no permanent fuel line.

Who should skip it

Skip it if weight matters, because the same steel case that feels robust also makes this the awkward one to carry. It is also the wrong choice for a very small tent, where an 8KW output in a tight space will overshoot setpoint quickly and cycle noisily.

If you are a light sleeper, be aware that the app is a convenience rather than a cure for pump noise, and confirm your ducting run length before you rely on it overnight.

4. GEARLASSO 8KW Portable Toolbox Diesel Heater – Best All-in-One Toolbox Setup

The toolbox format is the whole idea here: a carry handle, a form factor that looks like a tool case, and the heater and fuel tank living together instead of split across the vehicle. GEARLASSO rates this DH004 at 8KW with a 5-10 minute warm-up across 215-269 sq ft.

Fuel burn is the quiet strength. At 0.15-0.45 L/h from a 5L tank, this is among the thriftier figures in the lineup, and a precision oil pump with a ceramic spark plug handles cold starts well. Operating range is listed at -40C to +50C, which covers everything most campers will see.

Control is generous for a unit at this level. You get Bluetooth app control to about 30 meters, a remote quoted at 164 ft, and an LCD panel, plus a smart thermostatic mode with automatic shutdown, which is the setting you want for overnight runs where nobody is watching the dial.

The exhaust is externally vented by design, and reviewers treat that as a requirement rather than an optional extra. The weaker spot is the rating profile: with a 14% one-star share, this unit carries more early failures than the higher-rated all-in-ones here, so budget for a possible control or wiring replacement down the line.

Who this heater suits

Pick this if your idea of a heater is one object you grab and move, rather than a permanently mounted unit with a fuel line snaking across the vehicle. The fold-flat case shape also makes it practical for a boat cabin, a bus or a motorhome where mounting is awkward.

The two-year warranty is longer than anything else in this roundup, which is worth something on a device that will sit in a damp environment for years.

Who should skip it

Skip it if you want the quietest possible night, since the pump noise profile is not what this unit is known for. It is also a poor match for anyone who will not run the exhaust outside, because that is a hard requirement of this design rather than a best practice.

And if you can wait, the two-year reliability picture here is weaker than the models with several thousand reviews behind them, so the small peace-of-mind saving is real but not decisive.

5. VEPURLT 8KW with 15L Tank and Built-in Muffler – Best for Long Runtime

Capacity is the reason to look at this one. The 15L tank is the largest in this roundup, and at 0.2-0.5 L/h it means you can leave a heater running through several nights without touching a fuel can, which changes the whole logistics of a multi-week trip.

The built-in muffler is the other differentiator and it is not a marketing line. Owners consistently report this unit running noticeably quieter than comparable heaters without one, which matters when the heater is metres from your head in a fabric shelter.

It operates across a 10-12V and 20-32V range, so it can run on a 24V truck system as well as a standard 12V setup, and the ceramic ignition plug is specified for fast ignition and fuller combustion, which helps in cold weather when you are trying to get heat quickly.

The trade-off is space. At 18.11 x 17.72 x 10.24 inches and 16.19 pounds, it is a fixed-mount shape rather than a carry-around box, and the reviews make clear that you need a flat mounting surface with room around the intake and exhaust.

Who this heater suits

This suits bus, boat and motorhome owners who have a permanent install location and want to set and forget. The automatic control with abnormal-operating-condition protection is reassuring for a unit you are not standing next to, and the Euro IV combustion specification matters in enclosed vehicle interiors.

If your brand tier question is about longevity rather than features, note that this design has been on sale for years, and units of this architecture tend to be the ones that stay in service for seasons rather than weeks.

Who should skip it

Skip it if you are moving between campsites every night and do not want a permanently mounted box in the bed of the vehicle. It is also a poor fit for someone who wants to run a small tent, where a 5L portable box is easier to position and lighter to lift.

If you are new to 24V systems, take care with the wiring, since the 20-32V range does not behave like a plain 12V connection.

6. maXpeedingrods 2KW Diesel Heater – Best for Small Spaces and Low Noise

Two kilowatts sounds small until you realise what it is for. This is a background heat unit for a truck cab, a small boat cabin, an ice fishing shanty or a two-person tent, where the job is taking the chill off overnight rather than raising a cold van to living temperature.

The fuel consumption of 0.16-0.24 L/h is the lowest number in this roundup, which makes long cold trips far cheaper to run. Blower speed ramps linearly with power output, and the low-frequency pulse fuel pump is specifically designed to cut vibration, which is what keeps it from becoming a sleep disturbance.

Controls cover all three bases with the Booyood Bluetooth app, a remote and an LCD panel, and combustion is gasification with a ceramic igniter, a configuration that tends to be gentle on cold starts. The high-altitude thermostat is a bonus at elevation, since the unit is specified to work above 5500 meters.

Who this heater suits

Choose this for small, well-insulated spaces where a large heater would cycle on and off and waste fuel. Reviewers use it in trucks, boats, trailers, campervans and RVs, and the compact 12.79 lb body suits installs where a big box simply will not fit.

If your main criterion is staying asleep rather than heating a large volume, the tuned noise profile is the reason to pick this over a bigger unit.

Who should skip it

Skip it if you are heating a campervan or trailer that is genuinely cold at bedtime, because 2KW will not recover a large thermal mass quickly. It is also the wrong pick for anyone who wants a single box they can drop anywhere, since this is a split design and you are planning the tank and fuel line separately.

Budget for a hot air output hose as well, since owners point out it is not bundled with the unit.

7. LF Bros 5KW All-in-One with Plateau Mode – Best for High-Altitude Campsites

Plateau mode is the headline, and it is the feature high-altitude campers should prioritise. The unit is listed as tested to 17000 ft, and owners running it at campsites above 8300 ft report it keeps firing rather than choking on thin air and building carbon.

The removable T4 LCD controller is quietly excellent. Because the panel detaches and comes with a 100 ft remote, you can keep the thermostat inside the tent and actually use it, instead of walking out to a control box in the rain every time you want to change something.

Runtime is the other practical win. Owners report roughly 14 hours on low from the full 5L tank, and one describes a single tank covering three nights of camp use, which is a good match for a trip without a resupply point. The aviation-grade spark plug and antifreeze power cord are specified for extreme cold.

In thermostat mode the heater runs 5KW until it reaches setpoint, then drops to 1.4KW, and it draws roughly 35 watts once warmed up. That cycling is efficient, but owners note it never fully powers down, so in a small space you can overshoot your target temperature.

Who this heater suits

This is the pick for mountain and shoulder-season camping where elevation and freezing nights are the norm. It is also worth considering if you sleep inside the vehicle rather than in a tent, because the detachable panel makes it easy to control the heat from your bunk.

For anyone running on mains power at a site, the included 110V transformer means one heater covers both off-grid and hookup nights.

Who should skip it

Skip it if diesel smell bothers you, because owners repeatedly flag odour carrying into the heated air on startup. It is also the wrong choice for a very small tent where the never-fully-off thermostat mode will cook the space.

At 28 pounds it is heavy, and the documentation is the weakest part, with contradictory steps and missing diagrams reported by more than one buyer.

8. BougeRV 5KW 5L All-in-One – Best for Quiet Overnight Heating

Noise is the reason this one stands apart. It pairs a mute filter oil pump with a muffler for what the manufacturer calls dual noise reduction, and owners describing their use in tents say it is close to silent, which is the single most common sleeper complaint in this category.

The runtime figures are also the most generous published here, with 11-27 hours from a 5L tank depending on setting, and a warm-up time of about eight minutes for 307 cubic feet. That makes it efficient for a small-to-medium shelter where you want a long, steady night rather than short bursts.

Setup speed is impressive: the exhaust pipe is threaded so the whole unit assembles in under two minutes, and the foldable handle with a quick-release XT60 connector means moving it between a tent and a vehicle takes seconds. Protection circuits cover overheat, voltage drop and short circuits, and the app adds preheat and timer functions.

Two cautions. The screw-in exhaust threads are not smooth and owners describe assembly as fiddly until you get the feel of it, and the control panel mounts on the outside of the case where it is not weather sealed, so you want it under cover.

Who this heater suits

This is the choice for anyone who is genuinely noise-sensitive, particularly in a fabric tent where every mechanical sound carries. Owners report using it for camper conversions and tents, and the stainless enclosure with a proper gas cap is reassuring for fuel handling.

Long runtime also suits multi-night trips, since a single fill can carry a whole week of short heating cycles.

Who should skip it

Skip it if you want the largest raw heat output, since 5KW is a step below the 8KW units here and you will notice the difference recovering a large cold space. It is also worth weighing the vent discipline, because a small number of owners reported exhaust soot blocking and fumes entering a camper, which is exactly why we insist on outside venting and a CO monitor.

Finally, the review base here is the smallest of the group, so you are trusting a shorter track record than the models with thousands of owner reports behind them.

9. HCALORY 8KW Compact Toolbox with App Control – Best Multi-Voltage Toolbox Design

The exhaust routing is the smart engineering choice here. It is factory-routed and angled to exit on the opposite side from the fresh-air intake, which means you are less likely to accidentally pull exhaust-laden air back into the intake, and it reduces how you have to think about duct placement.

Heat output is a genuine strength. Owners report it running noticeably hotter than a VEVOR unit they replaced, and the aluminum body with an advanced combustion algorithm is claimed to deliver 28% better fuel efficiency. The silent fuel pump is specified to eliminate ticking, which is the sleeper complaint we hear most.

It runs on 110V, 12V and 24V with the included AC/DC adapter, and altitude adaptation is automatic to 18000 ft. Bluetooth app control with scheduling sits alongside a remote and a color LCD, with overheat and short-circuit protection built in.

The controls are where this unit disappoints, and the complaints repeat. The app loses connection and has to be re-paired from next to the unit, and the thermostat sensor is fixed inside the case, so it reads box temperature rather than the temperature of the space you are heating. Written instructions are sparse, and some units reported wiring failures after a few months.

Who this heater suits

Pick this if you want raw heat in a compact case and you mostly control the heater with the physical panel rather than the phone. The factory-routed exhaust makes it a good first heater for someone learning safe diesel heater setup for the first time.

Multi-voltage operation also makes it practical for a mix of vehicles and a household outlet without buying extra hardware.

Who should skip it

Skip it if you plan to run the app as your main interface, because the disconnection reports are consistent enough that we would not build a sleep plan around it. It is also a poor fit if you want a remote temperature sensor in the tent, because the internal sensor limits thermostat accuracy.

Note that no hot-air output hose is included, and the low overall rating of 4.0 with a 12% one-star share reflects more early failures than the other units here.

10. HCALORY HBH1S 8KW – Best Budget Pick for Cars and Campervans

This is the entry point we would suggest for a car or a small campervan where you want serious heat for the least commitment. The HBH1S covers 256 sq ft and reaches 122F at the outlet in about three minutes, which is the fastest heat rise in this roundup.

Ten temperature settings with auto start-stop give you finer control than a simple two-speed unit, and the updated aluminum body is claimed to lift burning efficiency by 18%, which shows up as better runtime per litre. The smart dual-altitude mode covers both 8200 and 16400 ft without manual tuning.

The 59-inch extension cable is a small detail that solves a real problem. It lets the control panel live inside the vehicle, so you are not reaching out of the window or walking around the outside of the rig to change settings at bedtime.

Who this heater suits

Choose this if you are heating a car overnight on a cold drive, or fitting out a small camper and want strong output without committing to a permanently mounted unit. Protection circuits cover overheat, short circuit, reverse connection and over-voltage, which is reassuring on a vehicle electrical system.

It is also a sensible trial heater, since it has the lowest entry point of the group and the fewest features to learn.

Who should skip it

Skip it if you want a warranty behind the purchase, because none is provided on this model, and that matters more than usual on an electrical appliance in a damp vehicle. It is also the wrong call if you want app control from a distance, since Bluetooth range here is only about 32 ft.

It needs a separate 12V supply and outside exhaust venting, and the review base is small, so treat it as a lower-commitment option rather than a long-term base camp heater.

Diesel Heater Buying Guide: Output, Power, Fuel and Altitude

How much heat output do you actually need?

Match the output to the shelter, not to the biggest number available. The 2KW class is background heat for a small tent, a truck cab or a boat cabin. The 5KW class covers a camper interior or a mid-size tent in the 215-269 sq ft range. The 8KW class is for larger vans, trailers, buses and motorhomes where you are recovering a cold metal box in the evening.

Oversizing is not free. A heater that overshoots setpoint in a small space cycles on and off, which is both inefficient and noisier, because you hear the burner start and stop repeatedly. The LF Bros N2-T in this list makes the point clearly: in thermostat mode it drops from 5KW to 1.4KW after reaching setpoint, and owners in small tents notice the difference.

One honest reality check on the labels. Rated output is measured at the burner, and delivered warm air depends on insulation, duct length and how many openings you have. A heater advertised at 8KW in a thin-walled tent is not delivering the same usable warmth as the same number in an insulated van. Treat the square-footage figure as the more honest number, since it accounts for the whole system.

For a quick cross-check, our tankless water heater guide covers the same sizing logic for hot water, which follows the identical match-the-output-to-the-load principle.

How much power does a diesel heater draw?

This is where most first-time buyers get it wrong. A diesel heater running on a thermostat is frugal: 1-3 amps on most models while the fan is turning, and around 35 watts once the LF Bros N2-T is warmed up and cycling. But the glow plug that preheats the combustion chamber draws 10-15 amps for the first two or three minutes of every start.

That surge is why so many overnight runs die at 3am. A small USB power bank cannot supply a startup surge, and a deeply discharged lead-acid battery will trip undervoltage protection. If you are running from a power station, size it for the surge, not the running draw, and confirm the unit can deliver a continuous 15A output.

On battery chemistry, a lithium iron phosphate pack is the better choice for camping heat, because you can use more of its rated capacity without damaging it. A lead-acid battery delivers roughly half its label amp-hours usefully. If you are sizing a battery for overnight heating, calculate from the running draw multiplied by hours, then add margin for the startup surge.

How long will a tank last?

Runtime is a straight division of tank volume by hourly consumption, and consumption scales with the setting you run. The 5L tanks dominate this roundup, and the published figures range from about 8 hours on the highest setting (VEVOR XMZ-D1) up to 14 hours on low with the LF Bros N2-T. The BougeRV 5KW quotes the widest band at 11-27 hours.

The 15L VEPURLT tank is the outlier that changes trip planning. At 0.2-0.5 L/h that volume removes refilling from the equation for most multi-week trips, at the cost of a bulkier unit that needs a permanent mounting spot.

For comparison, portable spa and hot tub heaters run on entirely different power and fuelling assumptions, which is why you cannot size a camp heater using the same rules as a fixed installation.

Do diesel heaters work at high altitude?

Yes, but only if the fuel-to-air ratio is adjusted. Above roughly 8000 ft the air is thinner, so a fixed fuel spray produces a rich, sooty burn that clogs the heat exchanger and eventually triggers a shutdown. Units with automatic altitude mode or plateau mode detect the change and trim the fuel delivery.

In this roundup, automatic adjustment is claimed for the VEVOR XMZ-D1, the LF Bros N2-T, the HCALORY compact toolbox and the HCALORY HBH1S, with rating ceilings ranging from 17000 to 18000 ft. Treat those ceilings as manufacturer claims; the practical test is whether the heater still fires cleanly on your second and third night at elevation, which is when carbon problems appear.

How do you set one up safely?

Six steps cover it. Place the unit outside the living space, in fresh air. Connect the outlet hot air hose and run it into the tent or cabin. Route the exhaust pipe away from every opening, ideally downward and away from where anyone breathes. Run a leak test and confirm no exhaust fumes enter the space. Place a CO alarm inside near sleeping height. Connect 12V power and preheat for about ten minutes before you get in.

Keep the intake clear of snow and canvas, and never extend the exhaust into a closed loop. If your tent is a hot tent with a stove already running, remember that the tent is already at elevated CO, so a battery alarm is not optional.

What fails first, and how to prevent it

On budget all-in-one units the most common complaints are documentation quality, cold-start reliability, and a control board or thermostat that stops calling for shutdown. None of those are fixed by buying a bigger heater; they are fixed by maintenance discipline and by accepting that a low-cost box is a consumable over a few seasons.

Four habits cover most of it. Run the heater on a high setting once a month to burn off carbon. Check the fuel filter and keep it out of the way of cold-soaked lines. In sub-zero conditions use winter-grade diesel and a rated anti-wax additive. And when a cold start fails, work through it in order: confirm fuel at the tank, confirm the pump primes, confirm the glow plug has current, then confirm the exhaust is not blocked with carbon.

That last sequence matters because the same symptom, no start, has four causes, and most forum troubleshooting goes wrong by replacing parts in the wrong order.

Frequently Asked Questions

Conclusion: Our Top Diesel Heater Picks for 2026

After working through ten of the most-reviewed portable diesel heaters available, the VEVOR 8KW all-in-one remains our best diesel heater for camping overall, because the sheer weight of owner feedback behind it outweighs its documentation gaps and its occasional control board failures. If your power setup changes between a vehicle battery and mains, the LF Bros 5KW is the smarter buy, and if you camp high or want phone control, the VEVOR XMZ-D1 handles altitude adjustment that the others cannot.

Whatever you choose, the safety rules do not change: heater outside, exhaust away from openings, CO alarm inside. Pick the output that matches your shelter, size your battery for the startup surge rather than the running draw, and run the unit on a high setting periodically to keep carbon off the heat exchanger. Those three habits do more for your nights than any extra feature on the box.