HLN Diesel Air Heaters
When it comes to year-round off-grid independence, a reliable, efficient heat source isn’t a luxury—it’s an absolute necessity. Whether you are navigating a freezing highland winter in a campervan, spending a damp weekend in a touring caravan, or keeping the cabin dry on a marine vessel, you need a heating system that performs flawlessly under pressure.
Why Choose HLN Diesel Heaters?
Unlike traditional, temperamental heating systems, HLN air heaters are built to commercial standards. They draw fuel directly from your vehicle or vessel’s primary diesel tank (or a dedicated auxiliary tank), rapidly distributing clean, dry, blown air throughout your living space independent of any campsite electrical hookups.
Why they are our go to System?
Engineered for whisper-quiet operation, minimal fuel consumption, and exceptional thermal efficiency, HLN heaters are our go-to choice for premium all-weather climate control.
We stock, supply, and professionally install the industry-grade HLN Diesel Air Heater range in both 2kW and 4kW configurations.
4 Reasons To Fall In Love With HNL Air Heaters
Ultra-Low Fuel Consumption
Advanced combustion control means these units sip fuel, running for hours on a fraction of a liter of diesel.
Low Current Draw
Optimized 12V/24V internal electronics protect your leisure battery bank, making them perfect for pairing with our off-grid lithium systems.
Advanced Altitude Compensation
Automatic sensor adjustment prevents carbon build-up (sooting) when traveling through high-altitude mountain passes.
Whisper-Quiet Operation
Equipped with dynamic fuel pumps and dampened air intakes, HLN heaters ensure a peaceful night’s sleep.
Recent Reviews
Selecting the Right Output: 2kW vs. 4kW
Choosing the correct heater size is critical to preventing short-cycling (turning on and off too frequently) or under-heating your space.
HLN 2kW Diesel Air Heater
- Small to medium panel vans (e.g., VW Transporter, Ford Transit Custom), compact tourers, and isolated small cabins.
- Up to 2,000 Watts
- 12V
- Compact footprint; highly efficient for keeping smaller zones evenly toasted without overheating.
HLN 4kW Diesel Air Heater
- Large wheel-base vans (e.g., Sprinter, Crafter), twin-axle touring caravans, static caravans, and marine vessels.
- Up to 4,000 Watts
- 12V / 24V
- Rapid heat distribution across multi-room ducting networks or large, exposed open-plan spaces.
Ready To Talk?
If you’d like to discuss the possibility of fitting a HLN Diesel Air Heaters (2kW & 4kW), please get in touch for a chat.
FAQs: HLN Diesel Air Heaters
Safe Chassis & Hull Integration
We use heavy-duty, corrosion-resistant external mounting plates, routing all exhaust gases safely outside the living envelope with premium silencers.
Smart Air Ducting
We design custom internal duct systems to eliminate cold spots, routing air precisely where you need it most.
Advanced Diagnostics & Servicing
Our workshop is fully equipped with factory diagnostic tools. We don’t just install; we handle long-term maintenance, glow plug replacements, carbon burn-outs, and diagnostic troubleshooting to keep your system firing for years.
Can I install it myself?
No we would always recommend a professional install.
Brands We Work With
