Skip to product information
1 of 1


The HOT BOX Original

The HOT BOX Original

Regular price $4,200.00 USD
Regular price Sale price $4,200.00 USD
Sale Sold out
Mounting Solution
Heat Outlet Port

The Hot Box. This diesel heater is the culmination of a desire for comfort, convenience, and quality while camping. It is the highest quality camping diesel heater available on the market and is also the most flexible in its usage.

The Hot Box is designed to keep you warm when the weather is weary. Don't shiver through another cold night of camping—camp in comfort with the same amenities you have at home.





Calculated based on location


Mountable Option (fuel tank mounted separate):

Heater External Dimensions (L*W*H"):25 x 10 x 6.96

Case Bolt Pattern: TBD

Fuel Tank: Standard Rotopax 2gal

Backing Plate Dimensions:

(L*W*H"): 27 x 11

View full details


A first of its kind, the Hot Box Camper is a bolt-on recirculating heating solution for truck campers, trailers or any hard-sided area that you need heated! Those tubes coming out the side of the case are air inlet, and heat outlet - no hooking up flexible hose tubing anymore!

What makes this product unique is the small packaging, premium components used, and the well-thought-out implementation of the design. Over 2 years of trial and error testing was spent during overland and offroading adventures to arrive at the perfect design. Problems were found, which led to solutions. The case is an attractive and durable aluminum sealed Zarges K470 case that has been modified to house the most reliable heating unit on the market - an appropriately sized Eberspacher/Espar DL 2.2kw unit. This unit will comfortably heat a roof top tent, truck bed camper, or interior of a vehicle with incredibly low fuel and power consumption.


There are a number of fundamental differences between these heating units, and the infamous “Chinese diesel heaters” available everywhere. Lets talk about these differences.

Our unit is made to survive the environments and for that, build quality is of paramount importance. These units are water sealed and have been tested through winter, rain downpours, and even car-wash pressure washers. Inside the case, you'll find the D2L Espar heating unit. These units come with a completely sealed ECU vs competitor open circuit cards. This allows reliable operation in incliment weather as all heating units of this design blow the inlet air directly across these components. This unit also comes with a completely silent fuel pump - no more clicking! (It may click when priming, however when running it's completely silent). In terms of altitude performance, these come with pressure sensors to provide reliable operation up to 13k feet!

Measured Power Consumption

As with any heating device like this, they require power. We have appropriately sized this heating unit for Roof top tents and truck campers, here are some of the power requirements you could expect to see based off run-time.


- Up to 120W on start(10A @12v)

   typically takes 10min = 1.7Ah

- Low , ~6W (0.5A @ 12V, 6Ah over 10hrs)

- High, ~32W (2.66A @ 12V, 26.6Ah over 10hrs)

- Low Voltage limit of 10.5V, unit will automatically shut off.


Fuel Consumption

- Low: ~0.026gal/hr, .26gal over 10hrs or 1 night

- High: ~0.074 gal/hr, .75gal over 10hrs or 1 night

- Through testing, with included 2gal tank, this will last 6+ nights in an Alu-Cab Roof Top Tent.


One of the unique aspects of this product is the ability to customize the configuration depending on your use-case. For this model we offer vertical and horizontal mounting options. A first for the industry. The packaging is also the smallest size available and the modular fuel tank can be mounted wherever you like.

The HOT BOX is also able to be roof mounted. Please note that if flat mounting, the intake and exhaust ports cannot be obstructed and the exhaust port is not recommended to be pointing at any other gear mounted next to it.

Have a larger heating requirement? Talk to us, we can double the heating unit for a slight increase in case size to a 4kw model. Our 4kw option also comes with higher altitude capabilities at up to 18,000ft!

Note: Vertical configuration may require more frequent service intervals, however, we have not encountered any issues in our testing thus-far. We also make the heater easy to remove, and can provide technical support if your heater needs cleaning. Running a full tank of kerosene through at the end of each season will help keep your burn chamber clean.

The Hot Box Camper comes with a backing plate to ensure rigid install on campers with thin panels such as the Go Fast, Alu-Cabin, and Canopy Camper.

If choosing a horizontal mounting configuration, the heat outlet is configurable to either side upon request. In vertical configuration, the heat must come out the bottom tube.

The Hot Box is designed to keep you warm when the weather is weary. Don't shiver through another cold night of camping—camp in comfort with the same amenities you have at home. 

Any special requests? Let us know, we have some flexibility depending on use-case.