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

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

Stay warm wherever you travel with the AU Focus 12V 2KW Bluetooth diesel heater, supplied complete with a 5L stainless steel tank and everything needed for a plug and play DIY install. AU Focus is an Australian owned manufacturer whose heaters are fitted as factory equipment by many of Australia's leading caravan brands, so you are buying a proven, locally supported unit, not an unbranded import. It is one of the cheapest ways to heat a van off-grid, with dry heat that cuts the condensation you get from gas, and it is backed by a 24 month warranty and our industry accredited workshop.

What Does It Cost to Run?

Figures below are based on the rated 0.1 to 0.3 litres per hour and the Melbourne metropolitan average diesel price of 206.3 cents per litre (about $2.06 a litre) for the week ending 14 June 2026, published by the Australian Institute of Petroleum.

In Smart mode the heater idles back once the cabin reaches your set temperature, so most owners average around 1 to 1.5 litres a night, roughly $2 to $3 of diesel to wake up warm. Running costs are a guide only and vary with setting, insulation, outside temperature and the diesel price on the day.

How Long Does the Fuel Tank Last?

The included 5L stainless steel tank gives plenty of unattended run time, and an optional 10L tank simply doubles it. A typical night below assumes a 10 hour run, and thermostat cycling usually stretches this further.

What Size Caravan Is It Right For?

At 1 to 2 kW this heater is sized for small to mid-size, single-zone spaces. In a well-insulated van it comfortably holds 18 to 22 degrees without feeling stuffy. It is a strong match for:

• Camper trailers, pop-tops and hybrid campers
• Campervans and motorhomes
• Single living-area caravans up to around 18 to 20 feet (about 6 metres)
• Off-grid cabins, tiny homes, utes and work vehicles

For a large family van over roughly 20 feet, a twin-zone or bunk layout, lots of big windows, or regular alpine and snow travel, step up to the 5 kW model. Good insulation and minimising draughts make a noticeable difference whichever size you choose.

Can You Run It Safely All Night?

Yes. The AU Focus is designed for continuous overnight use. The combustion chamber is sealed and vented outside, so fresh air is drawn in and exhaust gases are pushed out under the van through the muffler and exhaust, keeping combustion by-products out of the living space when correctly installed and maintained. Features that make all-night running practical:

• Smart thermostat mode holds your set temperature and pauses burning once the cabin is warm, then resumes if it drops 2 degrees, saving fuel and battery while you sleep.
• Safety sensors on both the control board and the fan, plus high and low voltage and current protection, with error codes shown on the LCD.
• Automatic cool-down cycle when the unit is switched off.

Will It Flatten My Battery?

No. Once running, the heater draws only about 5 to 35 watts to power the fan, pump and controller, using roughly 12Ah across a night. A healthy 12V 100Ah deep-cycle battery will comfortably run it for several nights between charges, and even longer with daytime solar. The only brief high draw is the 90 to 150 watt glow-plug surge for the first few minutes at start-up.

As with any fuel-burning appliance, always fit and maintain a working carbon monoxide alarm in your van and keep the exhaust outlet clear. Running on low for long periods is fine, and firing the heater on high for around 15 minutes once a month helps keep the glow plug clean.

Why Australian Owners Rate It

• Genuinely easy DIY install. The kit arrives complete, with clear photo instructions and AU Focus how-to videos. One owner said the only extra needed was a cheap holesaw from Bunnings.
• Heats up fast. Owners report a cold van becoming toasty in around 10 minutes.
• Quiet in use. Once the glow-plug start-up phase passes, the heavy-duty pump and baffled muffler keep it impressively quiet.
• Bluetooth from your bunk. Start the heater from bed or the camp table and step into a warm van.
• Excellent value. Customers have said it paid for itself on the first cold night, and many rate it above far pricier units.

Common Diesel Heater Problems This Unit Avoids

• No uncertified electrics. Carries RCM and EMC certification for Australian compliance, unlike many unbranded imports.
• No flimsy tank that cracks or leaks. Uses a 304-grade stainless steel tank with a lockable cap and dial level gauge.
• No constant pump ticking. Super-quiet, heavy-duty fuel pump and baffled muffler.
• No confusing controls or instructions. Clear English LCD panel, remote and app, with an easy-to-follow manual.
• No guessing when something is wrong. The LCD displays error codes for quick diagnosis.
• No orphaned product. Australian aftersales support, genuine spare parts and a 24 month warranty.

What's in the Kit

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 and Hardware

• 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.

What You May Also Need

The kit is complete except for a couple of common-sense extras. To make installation smooth, have these on hand:

• A holesaw to cut the floor mounting hole.
• High-temperature, fire-resistant silicone to seal the mounting plate (not included).
• A working carbon monoxide alarm for your van, strongly recommended for any fuel-burning heater.
• Optional 10L stainless steel tank upgrade for longer off-grid stays, plus spare glow plug and filters for extended trips.

Prefer not to cut into your van yourself? These units can be fitted at CARAC in our fully equipped and industry accredited workshop.

Caravan Heater Specifications

• Power: 1kW to 2kW adjustable.
• Fuel: Diesel only.
• Rated Voltage: DC 12V.
• Fuel Consumption (L/h): 0.1 to 0.3.
• Working Temperature: -40°C to +50°C.
• Main Unit Size: Length 340mm x Width 115mm x Height 115mm.
• Fuel Tank Size: Length 265mm x Height 325mm x Depth 110mm.
• Fuel Neck and Cap Height 70mm.
• Black flame retardant plastic casing.
• LCD Control Panel, also displays error codes for easy troubleshooting if required.
• Power draw 5 to 35w/h, peak consumption up to 90 to 150w for the first few minutes whilst the glow plug heats up.
• 24 month warranty.

Diesel Heater Features

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

Frequently Asked Questions

How much does the AU Focus 2KW cost to run per night?

About $2 to $4 of diesel for a typical night, based on the Melbourne average diesel price in June 2026. On the thermostat setting most owners use around 1 to 1.5 litres overnight.

How long will the 5L tank last?

Roughly 50 hours on low and about 16 to 17 hours on high, so several nights of off-grid heating between fills. A 10L tank doubles that.

Is a 2KW diesel heater big enough for my caravan?

It suits camper trailers, campervans and single-zone caravans up to around 18 to 20 feet. For larger family vans or alpine trips, choose the 5 kW.

Can I leave it running overnight?

Yes. It is built for continuous use with sealed, vented combustion and multiple safety sensors, and it sips battery at around 12Ah a night. Always pair it with a working carbon monoxide alarm and a clear exhaust outlet.

AU Focus Diesel Heater Reviews 2026

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