AU Focus 12V 2KW Diesel Heater With Bluetooth Includes Tank

AU Focus Diesel Heater 12V 2KW Bluetooth Controller - These units are the latest model and now come with a dial fuel guage, new cap locking mechanism and an exhaust sleeve protection.

Bluetooth Diesel Heater Components

• Easy to follow DIY Installation manual.
• Easy to read User Manual.
• 5L Stainless Steel (304 grade) Fuel Tank with top mounted dial fuel level gauge, fuel pickup and lockable fuel cap.
• LCD panel with remote control plus easy to download app to control the heater from your mobile phone.
• Solidly constructed with high grade heat resistant hard casing.
• 2 x Directional Flat vents.
• Super quiet heavy duty fuel pump.
• PA66 hard nylon fuel line 6m (4mm diameter, 1mm wall thickness), with black rubber connectors and heavy duty conduit.
• Unique design wiring harness. The wiring harness includes a 5m power cable (2.5mm core wiring), a 2.5m LCD controller cable and a 2.5m pump power cable. All cables are in flame retardant conduit and Anderson Plugs for easy installation (plug and play).

Quality Air Filter

• Premium reusable fuel filter made with alloy top and base.
• High grade exhaust with flame retardant sleeve, a heavy duty baffled muffler and exhaust tip.
• Powder coated mounting plate with protective flange ring to protect the floor and provides the best possible seal between the caravan floor and the undercarriage.
• Thicker durable plastic cable ties.
• High quality clamps and other accessories required to complete the installation.

Specifications:

• Power: 1kW - 2kW adjustable.
• Fuel: Diesel only.
• Rated Voltage: DC 12V
• Fuel Consumption (L/h): 0.1-0.3
• Working Temperature: -400~+500
• Main Unit Size: Length 340mm x Width 115mm x Height 115mm.
• Fuel Tank Size: Length 265mm x Height 325mm x Depth 110mm.
• Fuel Neck & Cap Height 70mm.
• Black flame retardant plastic casing.
• LCD Control Panel - Also displays error codes for easy troubleshooting if required.
• Power (5~35w/h), peak consumption up to 90~150w for the first few minutes whilst the glow plug heats up.
• 24 month warranty

THESE UNITS CAN BE FITTED AT CARAC IN OUR FULLY EQUIPPED AND INDUSTRY ACCREDITED WORKSHOP.

Diesel Heater Features:

• RCM and EMC Certification.
• Three modes: 1. Fan only, 2. Manual Heat Mode 1 - 10, 3. Smart mode - The heater stops heating and burning fuel once it arrives at a set temperature. If the temperature then drops 2 degrees celsius the heater resumes.
• Small and compact design allowing for a space-saving installation.
• Easy to use LCD panel with remote control also features, Bluetooth connectivity and app to control from your phone.
• Sensors on both the control board and fan for additional safety protection.
• High and Low Voltage & current protection.
• Fast heat up time and maintains a consistent temperature.
• Auto cool down process when powered off.
• Low fuel consumption.

AU Focus Diesel Heater Review Summary From 30+ Reviews

Unsure about the heater? Read the summary below from 30+ product reviews from our customers which has given this heating unit a 4.57 out of 5 star rating as of September 2025.

Product Strengths Across Both Models

• Many reviewers emphasise how quickly the heater warms up the caravan/camper.
• Even in very cold conditions, users reported a steady, comfortable heat output.
• Several mention that the unit “paid for itself” on the first cold night, underscoring how valuable it is for extending the camping season.

Fuel efficiency & low power draw

• Customers appreciate that the heater uses minimal diesel and battery power, making it suitable for off-grid camping.
• For longer trips, this translates into cost savings and fewer refuelling stops.

DIY-friendly installation

• Reviews note that the heater comes with all necessary components in the kit, making self-installation straightforward.
• Even those who hadn’t installed it yet commented positively on the quality and completeness of the parts supplied.
• Positive mentions of good service and helpful responses when calling the AU Focus team.

Build quality & durability

• Multiple customers highlight that the heater feels well-constructed and sturdy, with a finish that inspires confidence compared to cheaper imports.
• Seen as a step up from cheap imports (e.g., one replaced a CDH and noted obvious upgrade). Heater runs straight away without fiddly pump angles or issues.

Excellent comfort & usability upgrades (Bluetooth model)

• The Bluetooth control is a major selling point — praised for allowing users to start the heater from bed or outside the van.
• This feature is especially valued by campers who don’t want to step out into the cold first thing in the morning. 

Product Considerations

• While details are limited, occasional dissatisfaction likely tied to specific installation issues, expectations not met, or rare product faults have been identified within customer reviews.

1. Bluetooth adds complexity

• Although generally praised, having Bluetooth functionality could introduce extra setup or troubleshooting steps (though not specifically flagged as a widespread problem in reviews, it’s a common theme with tech features).
• For users less comfortable with apps or connectivity, the standard version may be a simpler fit.

2. Limited detail on functions 

• Some users felt the instructions didn’t explain the different heater functions in enough depth.

3. Controller design

• One person noted the controller cable exits from the bottom, making it tricky to get a clean, seamless look.

4. Learning curve for features

• While most found it easy to install, some still needed to call for extra guidance.

Product FAQs

1. How much fuel do the AU Focus diesel heaters use, and what size tank will I need?

The AU Focus unit consumes between 100 and 300 m/ltr per hour depending on the environment temperature it is being operated in.

2. Can I install the unit myself and do they come with everything I need to do so?

The unit comes with a very comprehensive installation manual and all the bits and pieces one should need to perform the installation.

AU Focus also offer an additional kit of parts to help with the installation, which includes a set of three hole saws specific to the size of each of the hoses used by the heater, a tube of flame resistant silicon, an additional mounting ring if required to protect the floor of the vehicle if necessary, a fuel line cutting tool so the fuel line is not crushed during the installation, cable joiners if required and 7, 8, and 10 mm magnetic sockets needed to tighten all of the fittings.

The standard 5L fuel tank supplied with the unit will provide a minimum of 16 hours of continuous operation under high load conditions which could extend out to approximately 50 hours when the external temperature difference is not as severe.

3. What are the benefits of the AU Focus Bluetooth model?

The Bluetooth model offers the convenience of Bluetooth operation via your mobile device, this is as well as normal push button operation directly from the control panel.

4. Does the AU Focus heater come with an adjustable/directional hot air vent?

The heat outlet vent will rotate 360 degrees so can be aimed in any direction. Please note that the vent should never be aimed at the floor as the heat coming straight out of the vent is sufficient to soften and eventually damage the lino covering on the floor!

5. Are the AU Focus heaters nice & quiet?

The fan noise the heater produces is at its loudest point when the heater is working hard to get the cabin temperature up to the setting you have chosen, once that temperature is reached, the fan calms down and is quiet.  Note - all heaters go through the same process to achieve the desired temperature and the AU Focus certainly isn’t noisy while going through these motions.

The other noise that is produced by a Diesel heater is the sound of the fuel pump working, this is a ticking sound if you are close to the pump but as the pump comes with a rubber mount and is installed under the van and not in the living space, you are unlikely to hear the pump from inside the caravan while in operation.  

6. Will the AU Focus heaters fit in my van?

The AU Focus fits in almost all Caravans and Campers but this can vary a little when fitting the unit to a large or small motorhome. In this situation we would normally recommend the customer to bring their motorhome into our workshop so we can inspect the vehicle to see if an installation is possible.

7. What maintenance is required for the AU Focus heaters?

Diesel Heaters are virtually maintenance free and only really require running them once or twice "at a fairly hot burn rate" for half an hour through the summer months.

8. Can you get spare parts for the AU Focus heaters?

Carac stock an excellent spare parts range from AU Focus who support their product very well.

9. Do the AU Focus diesel heaters smell?

All diesel heaters have an odour of diesel fuel around the tank, the pump and associated plumbing but as all of these are outside and under the vehicle there is no smell inside the caravan.

10. Can I purchase an additional length of exhaust pipe for the AU Focus heater?

The spare parts range covers additional lengths of exhaust pipe in 60cm or 120cm lengths plus many other spare parts including additional ducting pipe and fittings, all available at the Carac store or online at Carac.