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Product guide

PRIJESSE 12V 5KW Diesel Air Heater

PRIJESSE 12V 5KW Diesel Air Heater is a parking heater listed with a 10L tank, LCD thermostat and remote control. It is intended to warm vehicle cabins and other spaces, but check the installation details and the specifications that differ across the listing before choosing it.

At a glance

Remote temperature adjustment is listed, with a stated control range of 30m.
The listing describes standalone operation while parked, without starting the engine.
The title and feature text claim a 10L tank, and the product information lists diesel fuel.

Price

£59.49Save 15%

Reference price: ~~£69.99~~

Price checked: 13 Nov 2026

View offer

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Pros and cons

Pros

12V power and a separate fuel tank make the stated configuration relevant to vehicle cabin heating while parked.
Remote control and an LCD thermostat are claimed, allowing temperature adjustment without relying only on manual controls.
The package description claims a broad set of installation components, including air pipes, vents and a silencer.

Cons

Customers report mixed noise levels, with some finding the heater noisy despite the listing's low-noise claims.
Customer feedback says the instructions are not comprehensive, which may make installation less straightforward.

Technical specifications

21 specifications

Identity
Brand	PRIJESSE
Manufacturer reference	PR-15-1
Colour	Red

Heating and fuel
Heater power	5KW
Fuel	Diesel only
Heating area	15m²
Fuel consumption	0.64
Starting fuel consumption range	0.14-0.64L/H
Continuous heat supply hours	48
Heater working temperature	-40℃~+50℃
Oil pump working temperature	-40℃~+40℃

Electrical
Rated voltage	12V
Startup current	15A
Rated current	3A
Power consumption	0.036KW/H

Controls and connections
Remote control range	30m
Outlet diameter	76mm
Inlet diameter	26mm

Dimensions and operating environment
Item size	about 15.3" x 5.7" x 5.7" inch (As picture shows)(please confirm the car voltage then adjust)
Working height	3,500 meters above sea level

Tank
Tank capacity	10L

What to know before buying

Listing details to confirm

The listing is inconsistent about fuel consumption, giving 0.64 and a 0.14-0.64L/H range. The tank capacity, 48-hour continuous heat claim, heating area and 3,500-metre working height are stated in product details but are not substantiated by an operating mode or further conditions. The title says 5KW and 12V, and product specifications repeat these figures, but confirm the exact configuration and vehicle voltage before purchase. Customer feedback also varies on functionality, pump operation, noise and fit.

Who is it for?

A good fit for

Vehicle owners seeking a diesel-fuelled cabin heater for use while parked, provided their installation and electrical setup match the listed 12V configuration.
Buyers who want remote temperature control and an LCD thermostat, and are prepared to assess the installation requirements.

Less suited to

Buyers seeking complete, consistently detailed installation instructions or assurance of quiet operation based on the listing alone.
Applications requiring an independently confirmed heat output, fuel-use rate or fit specification.

PRIJESSE 12V 5KW Diesel Air Heater · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 279 ratings

5 stars66%66%
4 stars17%17%
3 stars7%7%
2 stars3%3%
1 star7%7%

Customer feedback highlights quick warmth in motorhomes, positive heating performance and reports of easy installation and use. Some buyers also say it heats sheds or greenhouses effectively. However, experiences are mixed on functionality and noise, including reports of fuel-pump problems, and customers disagree about fit. Given the listed 12V supply, 5KW heater power and diesel fuel, these reports are most relevant to buyers considering a vehicle or other suitably installed space heater. The reported instruction concerns are worth considering before a DIY installation.

Positive themes

Customers report quick warmth and positive heating performance, including for motorhomes.
Some customers describe installation and use as easy and say it offers good value.

Negative themes

Customers report that the instructions are not comprehensive.
Some customers report fuel-pump problems.

Mixed feedback

Customers disagree about noise, functionality and fit.

Frequently asked questions

What fuel and voltage does the listing specify?

It identifies diesel as the fuel and lists a rated voltage of 12V. Confirm your vehicle voltage and the selected configuration before installation.

Can it be used while the vehicle is parked?

The listing says it can provide heat while parked without starting the engine. This is a manufacturer claim, not an independently verified operating result.

What does the listing say about fuel consumption?

It gives both 0.64 and a starting consumption range of 0.14-0.64L/H. These statements differ, so treat the consumption figure as unconfirmed.

What do customers report about using it?

Feedback describes quick warmth and straightforward installation for some buyers, but reports vary on functionality, noise and fit. Some also mention fuel-pump problems and incomplete instructions.