Is 8 kW too much for a small van?

For a well-insulated small van, 8 kW is more than most builds need and will cycle on and off. It suits large RVs, cargo carriers or very cold climates better.

Does it run on both 12V and 24V?

Yes. The heater is stated to support both 12V and 24V electrical systems, so it fits cars, trucks and larger vehicle setups.

How far does the remote work?

The remote is rated for up to 98 feet, and the unit also has a built-in display for control at the heater.

What size duct does it take?

The air outlet is 3 inches (75 mm) wide, so you need a matching duct to channel heat where you want it.

What comes in the box?

The listing describes the heater, remote and display. A fuel tank, mounting bracket and ducting are not stated, so check before installing.

Where is the KFFKFF Portable Diesel Air Heater cheapest?

At Walmart, for $95.99, as of our latest check.

What do buyers say about the KFFKFF Portable Diesel Air Heater?

Rated 5 out of 5 from 1 ratings.

KFFKFF Portable Diesel Air Heater

Best price now

$95.99at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

KFFKFF Portable Diesel Air Heater

Best price now

$95.99at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $95.99 at Walmart on Nov 11.

Our take on the KFFKFF Portable Diesel Air Heater

The KFFKFF is an 8 kW diesel air heater that runs on 12V or 24V vehicle power and blows warm air through a 3-inch outlet. It is built for RVs, trucks, vans and cargo carriers, and it comes with a remote that works from up to 98 feet plus a display on the unit. The all-aluminum heat exchanger is meant to warm air quickly and spread it evenly. Against the smaller 2 kW and 5 kW diesel heaters common in camper builds, it offers much more heat output, but it draws more fuel and needs a proper ducted install.

Best forRV and camper van owners heating in cold weatherTruck and cargo carrier cabsOff-grid or unpowered spaces needing diesel heatBuyers who want remote control and a display

Pros

High 8 kW output for large or very cold spaces
Works on both 12V and 24V systems
Remote control reaches up to 98 feet
Built-in display for on-unit control
Aluminum heat exchanger for fast warm-up
3-inch outlet pairs with adjustable ducting

Cons

High output means higher diesel use than smaller heaters
Needs a ducted installation and exhaust routing
No mention of a fuel tank or mounting kit in the box
Remote and display only; no app control stated

KFFKFF Portable Diesel Air Heater prices at every store

WalmartNew
In stock
$95.99Checked Nov 11
Visit Walmart

About the KFFKFF Portable Diesel Air Heater

This 8KW diesel air heater runs on 12V and 24V systems. It can be used in RVs, trucks, SUVs, camper vans and cargo carriers. It is designed to warm larger areas while keeping fuel consumption low.

The heating unit is all aluminum, which conducts heat well and warms cold air quickly. The air outlet is 75 mm wide and can be paired with an adjustable duct to send heat where it is needed. A remote control works from up to 98 feet away, and the heater has a built-in display.

Safety features include a sealed fuel cap, a heat-resistant sleeve on the exhaust pipe, and a control board with overheat protection. The exhaust must be directed outdoors.

Model: XMZ-W-D4
Heating power: 8KW
Voltage: 12V and 24V systems
Fuel: Diesel
Fuel consumption: 0.04–0.1 gal/h (0.17–0.48 L/h)
Fuel tank: 1.3 gal / 5 L
Combustion efficiency: ≥90%
Noise level: ≤75 dB
Temperature range: 46.4–96.8°F / 8–36°C, 10 adjustable levels
Overheat protection: ≥536°F / 280°C
Air outlet: 2.9 inch / 75 mm diameter
Remote range: Up to 98 feet
Max altitude: Below 9842 ft / 3000 m
Dimensions: 15.7 x 9.6 x 12.0 inch / 400 x 245 x 305 mm
Weight: 17.6 lbs / 8.0 kg, including all accessories
In the box: 1 diesel heater, 1 intake pipe, 1 exhaust pipe, 1 air outlet duct, 1 remote control, 1 silencer with accessories, 2 air outlet duct clamps, 4 intake and exhaust pipe clamps, 2 insulation sleeve clamps

Specifications

color: MulticolorSource
size: 17.52*11.61*13.98Source

Questions and answers

Is 8 kW too much for a small van?: For a well-insulated small van, 8 kW is more than most builds need and will cycle on and off. It suits large RVs, cargo carriers or very cold climates better.
Does it run on both 12V and 24V?: Yes. The heater is stated to support both 12V and 24V electrical systems, so it fits cars, trucks and larger vehicle setups.
How far does the remote work?: The remote is rated for up to 98 feet, and the unit also has a built-in display for control at the heater.
What size duct does it take?: The air outlet is 3 inches (75 mm) wide, so you need a matching duct to channel heat where you want it.
What comes in the box?: The listing describes the heater, remote and display. A fuel tank, mounting bracket and ducting are not stated, so check before installing.
Where is the KFFKFF Portable Diesel Air Heater cheapest?: At Walmart, for $95.99, as of our latest check.
What do buyers say about the KFFKFF Portable Diesel Air Heater?: Rated 5 out of 5 from 1 ratings.