The 12V 5KW diesel air heater is an all in one parking heater kit from PRIJESSE. It burns diesel only and heats a space of 15m². It suits cars, vans, caravans, motorhomes, boats, buses, trucks and car trailers.
What does it use? Fuel consumption is 0.64 L/h and it can supply heat for 48 hours without a break. The kit has an LCD display, a remote control and a silencer.
The heater works from -40℃ to +50℃ and at heights up to 3,500 metres. It costs £77.99 on Amazon and comes with a full installation kit and instructions.
The stated heating area is 15m². That suits a small caravan, a van, a cab or a workshop corner. One buyer used it in a 16 metre insulated greenhouse. On the lowest setting it held about 6℃ when it was -3℃ outside. Poor insulation will cut the result. Bigger or draughty spaces will need more heat than this unit gives.
The listed fuel consumption is 0.64 L/h. Actual use depends on the setting. A buyer measured one tank on the lowest setting and got about 30 hours. On full power the same tank lasted about 6 hours. So running it low saves a lot of fuel. The heater can supply heat continuously for 48 hours.
It makes some noise. The kit includes a silent fan, a silent oil pump and a silencer. Even so, buyers describe a ticking fuel pump. One said the noise grows as you turn up the heat. Another called it fairly quiet. If noise matters, use lower settings. One buyer suggested swapping in a quieter pump.
It is a 12V unit. You need a 12V supply that can handle the startup current of 15A. Rated current once running is 3A. One buyer used a 240V to 12V adapter rated at 30A and 200W. They saw about 150W for the first few seconds. It then fell to about 30W on the lowest fan speed. Pick an adapter with spare capacity.
You get the heater with LCD screen and a remote. You also get an air filter, an air outlet pipe, an intake pipe, an exhaust pipe and a silencer. Remote batteries are not included. The box list does not name a fuel tank. Ask the seller if one is supplied. You will also need diesel. The heater runs on diesel only.
The kit has the fitting parts. The supplier says to follow the correct steps and check twice before use. Buyers found the manual weak. The listing says it is a generic version. One buyer relied on YouTube videos. The fuel pump must be tilted between 40 and 90 degrees. Check all fuel joints before the first run. One buyer found a loose tank union that leaked diesel.
Yes. The heater working temperature is -40℃ to +50℃. The oil pump works from -40℃ to +40℃. The maximum working height is 3,500 metres above sea level. The remote has a 30 metre range. You can start the heater before you get into a frozen car.
Many products have a 30-day right of return. Exceptions apply and are listed in the return details. The seller says it will help with install problems. Reviews are mixed on reliability. One buyer's unit failed after under two hours with a heat sensor fault. Others report no issues. Test it soon after delivery so any fault shows up inside the return window.
The PRIJESSE 12V 5KW Diesel Air Heater is an all in one parking heater kit with a power output of 5000W. It runs on diesel only and works from a 12V supply. It is sold in black or red. This listing is for the black version. PRIJESSE sells four 5000W variants of this heater.
The makers say it suits diesel vehicles such as cars, RVs, vans, buses, trucks, engineering vehicles, motorhomes, boats, car trailers and caravans. The heating area is 15m². The heater can supply heat for 48 hours without a break. It works at altitudes of up to 3,500 metres above sea level. The heater works in air temperatures from -40°C to +50°C. The oil pump works from -40°C to +40°C.
The heater has a rated voltage of 12V. It draws 15A at start up and 3A once running. Its power consumption is 0.036kW per hour. Fuel consumption is 0.64 L/h. The heater uses a metering oil pump with an improved low frequency pulse. The fuel pump has a plunger that supplies the fuel. The makers say this gives high precision and a stable fuel supply with strong suction.
The fuel pump must be installed up and kept tilted between 40 and 90 degrees.
The heater has an LCD thermostat monitor. The kit includes a remote control that works within 30 metres. You can set the temperature with the remote. This means you can start the heater before you get into a cold car. The makers say the heater can also defrost and defog the windscreen. The remote needs batteries and they are not included.
The heater has a silent fan and a silent oil pump. A silencer is included in the kit. A blower controls the fan speed. The makers say these parts lower the noise. Customer reviews give mixed views on noise. Five reviews mention it and four of them are negative. Some say the fuel pump is very loud and makes a ticking sound. One reviewer says the heater gets noisier as you turn it up and becomes annoying on full power. One reviewer calls it fairly quiet.
The heater has a single air outlet with a diameter of 7.6 cm. The inlet diameter is 2.6 cm. The makers say the large outlet gives an even air speed and a wide air supply range. They also say it improves thermal efficiency.
The kit has a full set of installation parts. The product manual is a generic version. The seller advises you to check the product page for details. The seller says it is very important to install the heater by the correct steps and to double check before use. The seller says it will help with any installation problems.
The heater has 64 ratings and an average of 4.2 out of 5. A total of 64% of ratings give five stars. 16% give four stars. 6% give three stars. 3% give two stars. 11% give one star. Reviewers say it works well in a caravan and a workshop. One uses it in a bar. Reviewers mostly say it is cheap to run.
One reviewer heats a 16 metre insulated greenhouse with it. Electric heating there cost £15 a night. They say the instructions are poor and that YouTube was more helpful. They needed a 240V to 12V adapter rated at 30A and 200W. They say the start up phase uses 150W for a few seconds and then drops to 30W on the lowest fan speed. On the lowest setting a tank of fuel lasted about 30 hours. They put the cost at about 15p an hour with red diesel. They say heating oil costs about the same. On full power the fuel lasted about 6 hours and the greenhouse reached 18°C. They found this too hot for plants. On the lowest setting the greenhouse stayed at about 6°C when it was -3°C outside.
Quality views are mixed. One reviewer found the fuel tank union loose and the heater leaked diesel onto the shed floor until they tightened the fittings. Another reviewer had a unit stop working after less than two hours. It showed a heat sensor fault. After they replaced the sensor the display stopped responding to any button. One reviewer reports poor customer service and two faulty units.
The heater is sent from and sold by PRIJESSE. It first became available on 28 July 2023. Many products have a 30 day right of return. Some items cannot be delivered outside mainland UK.
| Specification | Detail |
|---|---|
| Brand | PRIJESSE |
| Manufacturer | PRIJESSE |
| Model | Diesel Air Heater |
| Manufacturer reference | PR-Diesel Air Heater |
| Colour | Black |
| Heater power | 5kW (5000W) |
| Rated voltage | 12V |
| Start up current | 15A |
| Rated current | 3A |
| Power consumption | 0.036kW per hour |
| Fuel type | Diesel only |
| Fuel consumption | 0.64 L/h |
| Heating area | 15m² |
| Continuous heat supply | 48 hours |
| Remote control range | 30 metres |
| Air outlet diameter | 7.6 cm |
| Air inlet diameter | 2.6 cm |
| Heater working temperature | -40°C to +50°C |
| Oil pump working temperature | -40°C to +40°C |
| Maximum working altitude | 3,500 metres above sea level |
| Fuel pump installation angle | Up and tilted between 40 and 90 degrees |
| Air outlets | Single outlet |
| Display | LCD |
| Silencer | Included |
| Remote control | Included (batteries not included) |
| Package dimensions | 49.29 x 47.7 x 20.7 cm |
| Weight | 8.46kg |
| Date first available | 28 July 2023 |
