Three men camping outdoors with a Heatflow product visible.

Heatflow

The portable diesel heater by Totalcool

Built-in carbon monoxide protection, automatic altitude adjustment, and a full range of timer controls for complete ease of use. Set it up outside, secure it, and let it run safely without the need for constant attention

IP33

Rated for outdoor use

5 Litres

runs for 20+ Hours.

8-15w

after peak draw

Portable Outdoor Diesel Heater

HEATFLOW Specifications

The Heatflow is built to be strong and practical. Its steel body, low power use, and solid parts make it ready for real-world use. It’s light, dependable, and simple to look after, so you can count on it wherever you go.

Construction

Outer shell: Powder coated, folded steel

Impact resistant edging: Flame retardant ASA

D-Shackle: Reinforced steel connected to inner chassis

Carry handle: Nylon build, connected to inner chassis

Input / Output

Control input port: 3 Pin LP-12 IP68 Waterproof connector

Fuse Type

Glass cartridge

Dimensions

Unit Body

L/W/H: 412mm x 212mm x 286mm

With Exhaust cover

L/W/H: 412mm x 269mm x 286mm

Compact, sturdy, and easy to move around. The main unit measures 412mm long, 212mm wide, and 286mm high. With the exhaust cover, the width increases slightly to 269mm. Weighing just 10kg when empty, it’s light enough to carry but strong enough to stay steady while running. Its size makes it great for camping, working outdoors, or keeping warm anywhere you need some extra heat.

Dimensions

Unit Body

L/W/H: 412mm x 212mm x 286mm

With Exhaust cover

L/W/H: 412mm x 269mm x 286mm

Compact, sturdy, and easy to move around. The main unit measures 412mm long, 212mm wide, and 286mm high. With the exhaust cover, the width increases slightly to 269mm. Weighing just 10kg when empty, it’s light enough to carry but strong enough to stay steady while running. Its size makes it great for camping, working outdoors, or keeping warm anywhere you need some extra heat.

Covered air intake

prevents dust, debris, and water from entering the system, and maintain efficient operation

Elevated Exhaust system

keep hot gases away from the ground, reducing fire risk and preventing damage to surrounding surfaces or vegetation. This design also improves airflow and ensures safe, efficient exhaust dispersion in outdoor settings.

Pressure Release fuel cap

Safely vent excess pressure from the fuel tank, preventing leaks and maintaining consistent fuel flow.

Backlit Fuel window

Check fuel levels at a glance, even in low light or nighttime conditions.

Quick-swap fuse

fast, tool-free replacement if a fuse blows, keeping downtime to a minimum. It’s a straightforward design that makes maintenance easy

FAQ

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Our customer support is available Monday to Friday: 8am-8:30pm.Average answer time: 24h

HEATFLOW

The Premier outdoor diesel heater

Portable Diesel Heater: Safe, Efficient Warmth Anywhere

A portable diesel heater gives you fast, reliable heat at the campsite, in your van, or in the workshop. Built for real outdoor use, it delivers clean warm air while keeping combustion safely contained. If you need dependable heat with simple setup and low running costs, a portable diesel heater is the right choice.

How a Diesel Air Heater Works

A diesel air heater pulls in ambient air, warms it over a sealed heat exchanger, and pushes clean air back into your space. Combustion stays separate from the air you breathe, which helps maintain air quality and reduces moisture build-up. This straightforward design makes outdoor heating predictable and safe.

Power and Efficiency You Can Count On

Expect practical running costs with typical fuel use of about 0.11 to 0.25 litres per hour, depending on output. Electrical draw peaks briefly at startup, then settles while running. A 5-litre tank supports many hours of steady heat, which is ideal for overnight camping or long workshop sessions.

Safety Features for Outdoor Heating

An IP-ready design supports outdoor placement in mixed weather. A covered air intake keeps debris and water out, while an elevated exhaust moves hot gases away from ground level to lower fire risk. Add CO monitoring for extra assurance, and benefit from a robust steel body with heat shielding for durable, safe performance.

Use It Anywhere: 12V, 24V, or Mains

This outdoor diesel heater works with 12V, 24V, or mains power, so you can heat tents, vans, sheds, and small workshops without fuss. It is a strong option for camping and van life where low power draw matters, and it is equally at home as a spot heater in garages and work areas.

Popular Use Cases

For camping, it warms awnings and cooking areas without open flames. For van life, it pre-heats the cabin and runs quietly through cold nights. In workshops and garages, it targets the space you are using rather than wasting energy on unused areas.

What to Look For When Buying

Match the heater output to your space and climate. Choose models with transparent fuel use figures and automatic altitude adjustment if you travel in the hills. British design and local support make warranty and parts easy to access.

Quick Spec Snapshot

Fuel is standard diesel and the tank holds 5 litres. Power draw is about 115 watts at start and cooldown to allow Glowplugs to get up to temperature and about 8 to 15 watts while running. Connectors support 12V and 24V with a mains option available. The build is powder-coated folded steel with impact-resistant edging, and the unit weighs about 10 kg.