This is an all-in-one diesel air heater from maXpeedingrods (model QA48VW). It burns diesel to heat air directly. That makes it a fit for vans, caravans, boats, garages and cabins. The Diesel Heater 8KW measures 43 x 17 x 44 cm and weighs 9.68kg.
What can it do? Output is adjustable from 1KW to 8KW, with a peak of 27,000 BTUs. Fuel use runs from 0.14 to 0.48 litres an hour. It works in temperatures from -40°C to +50°C and at altitudes up to 4,500 metres.
How do you control it? Use the Bluetooth app, the remote control or the LCD screen. It also has a timer, a preheating function, voice announcements and overheat protection. It is certified FCC, CE, UKCA, RCM and E-mark.
Adjustable 1KW-8KW output - You can set the power anywhere from 1KW up to 8KW, which equals 27,000 BTUs at the top end. Why does that matter? A small van needs far less heat than a big workshop. Low settings use as little as 0.14 litres of diesel an hour. Full power uses up to 0.48 litres.
Three ways to control it - The heater has an LCD switch, a remote control and a Bluetooth app. So you can start it from bed or the sofa without getting up. The app can also preheat the unit remotely from your phone. One reviewer with a coffee van found plenty of adjustment for heat, fuel priming and fan speed.
12V, 24V and 240V power - It runs on 12V or 24V vehicle power. A 100-240V household transformer is included too. That means one heater can move between a car, truck, garage or cabin. It also has constant temperature control and a timer. Both help you avoid burning more fuel than you need.
Tool battery direct-plug system - The heater can start straight from 12V-24V lithium tool batteries. You don't need a large outdoor power source. Is there a catch? The battery slot on the body must match your battery. Check this before you buy. It suits campsites and places with no mains supply.
Wide temperature and altitude range - The heater operates from -40°C to +50°C. The oil pump works from -40°C to +40°C. Automatic altitude adjustment keeps it running up to 4,500 metres. Thinner air at height can upset a burner, so this adjustment helps it keep burning cleanly on mountain routes.
Compact all-in-one design - Everything comes in a single unit measuring 43 x 17 x 44 cm. The fuel tank is 27.5 x 13.6 x 14.5 cm. At 9.68kg it is easy enough to carry and fit. Overheat protection and a preheating function add safety. A reviewer fitted one to a 3 bedroom static caravan and found it warmed the space well.
Output is adjustable from 1KW to 8KW with a maximum of 27,000 BTUs. That is a lot of heat for a small space. A caravan, campervan or boat cabin will not need full power for long. One reviewer says it warms a 3 bedroom static caravan well. Another uses it in a coffee van with a large open serving hatch. You can drop the setting for smaller spaces and save fuel.
The listing gives fuel consumption as 0.14 to 0.48 litres per hour. The low figure is for minimum output and the high figure is for maximum output. The comparison table lists a 5 litre tank for this model. That works out at about 35 hours on the lowest setting and about 10 hours at full power. These are calculated estimates from the listed figures. Real use will vary with temperature and heat setting.
Yes. It comes with a 100-240V household transformer. This lets you power it in a garage, cabin or workshop. The heater itself runs on 12V or 24V DC. So the same unit works in a car, truck or boat from the vehicle battery. Check the voltage of your vehicle before connecting it.
The heater can start from 12V to 24V lithium tool batteries. It means you do not need a large outdoor power source. There is one condition. The battery slot on the body must match your battery. The listing does not say which brands fit. Check the user manual PDF or ask the seller before you buy a battery for it.
The heater uses Bluetooth. You download the app and control it from your phone. You can preheat it remotely. A remote control and an LCD screen are also included. The comparison table shows wireless startup and an oil usage monitor on this model. Bluetooth has a limited range. So the app is best used from near the heater such as the sofa or bed in a caravan. The listing does not state a maximum range.
Yes to both. The listing gives an applicable altitude of 4,500 m and automatic altitude adjustment. The heater operates from -40°C to +50°C. The oil pump is rated from -40°C to +40°C. That covers most UK winter conditions with a big margin.
It has overheat protection and constant temperature control. It also has a timer and voice announcements. The unit is certified to FCC, CE, UKCA, RCM and E-mark standards. Diesel heaters need a proper exhaust that vents outside. One buyer also reported loose crimps and a faulty switch on their unit. Check the wiring and connectors when you install it. Fit a carbon monoxide alarm in any sleeping space.
The body is 43 x 17 x 44 cm and weighs 9.68kg. The tank measures 27.5 x 13.6 x 14.5 cm. Amazon suggests two extras bought with it. These are a 200 cm stainless steel exhaust pipe and a 12V 30A power supply. Check the listing and the user manual to see exactly what comes in the box. The seller offers a 30-day return period on many products. Delivery is to mainland UK only.
| Specification | Detail |
|---|---|
| Brand | maXpeedingrods |
| Manufacturer | maXpeedingrods |
| Model number | QA48VW |
| Manufacturer part number | QA48VW |
| ASIN | B0FDGBWF5L |
| Variant | 8KW All-in-one |
| Type | Heating |
| Fuel | Diesel |
| Heating medium | Air |
| Rated power | 8KW |
| Heating power range | 1KW-8KW adjustable |
| Maximum output | 27000 BTUs |
| Operating voltage | DC 12V/24V |
| Household transformer | 100-240V (included) |
| Tool battery input | 12V-24V lithium tool batteries (battery slot must match) |
| Fuel consumption | 0.14-0.48 L/H |
| Fuel tank capacity | 5 litres |
| Fuel tank dimensions | 27.5 x 13.6 x 14.5 cm |
| Product dimensions | 43 x 17 x 44 cm |
| Weight | 9.68kg |
| Heater operating temperature | -40℃ to +50℃ |
| Oil pump operating temperature | -40℃ to +40℃ |
| Maximum altitude | 4500m |
| Control methods | LCD switch, remote controller, mobile app |
| Connectivity | Bluetooth |
| Wireless startup | Yes |
| Automatic altitude adjustment | Yes |
| Oil usage monitoring | Yes |
| Other functions | Constant temperature control, timer, voice announcements, preheating, overheat protection |
| Certification | FCC, CE, UKCA, RCM, E-mark |
| Documentation | User manual (PDF) |
| Date first available | 17 June 2025 |
