Which Portable Diesel Heater Should I Choose

At Dieselheat, we assemble two different portable diesel heaters: the 2.2kW and the 4kW models.

The 2.2kW heater is our smallest and lightest option, weighing just 11kg. It’s easy to load, unload, and carry around. With 2.2kW of heating power, it’s ideal for slide-on campers, flat-floor campers, vans, caravan annexes, smaller boats, sheds, or off-grid cottages.

The 4kW heater is larger and heavier at 17kg (it has a strong handle), so it requires more space for transport and setup. However, it delivers a lot more heat and operates very quietly—making it well suited for large annexes, bigger off-grid homes (like 40-foot containers), tents, or small marquees.

We also offer portables built with two different brands of heaters:

  • Belief is a high-quality Chinese-made heater (nothing like the cheap eBay versions). It features a brushless fan motor, full safety systems, smart digital control, and quality components. Belief heaters are reliable, long-lasting, and backed by a 2-year warranty, with full service and support. Read more about Belief here.
  • Eberspacher is the top German brand, known for the most reliable and durable heaters on the market. Built to OEM automotive standards and used by brands like Mercedes, Eberspacher heaters are simply the best. Read more about Eberspacher here.

For the 2.2kW portables, we offer:

  • Belief 2.2kW ALT SP – the latest model Belief heater.
  • Eberspacher D2 – A tried-and-proven earlier model that’s reliable and cost-effective.
  • Eberspacher D2L AS3 – The latest generation Eberspacher

For our 4kW portables we offer

  • Belief 4kW ALT SP – the latest model Belief heater
  • Eberspacher D4L AM3 – The latest generation Eberspacher

See here for all our portables.

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