Spheros water heater (12)

Spheros Diesel Coolant Heaters - Efficient and Reliable Solution

Looking for a reliable, efficient solution to keep your bus or truck cozy during chilly adventures? Spheros coolant heater is the perfect solution for you.
Discover why these diesel coolant heaters are a game-changer for large vehicle owners.

Why Choose Spheros?

Spheros diesel heaters are renowned in the trucking world for their durability and performance.
Whether it's the Spheros/Webasto DBW, Spheros Thermo Plus 300 or Thermo E Plus models, expect high heat output and minimal fuel consumption.

Suited for Large Applications

Designed for large vehicles like trucks, buses, or construction machinery, Spheros heaters offer quick heating without engine operation.
As an added bonus, they provide instant hot water, which is ideal for vehicles that lack adequate insulation.

Discover Our Spheros Collection

Explore our extensive collection of Spheros diesel coolant heaters. Each product page offers detailed specifications, helping you choose the perfect fit for your needs.
Maximize your heater's performance with our range of Spheros heater parts and kits. From layout improvements to extreme condition enhancements, we've got you covered.

Still Have Questions?

Got queries about maintenance, service, or anything else? Reach out to us, and we'll provide all the assistance you need!


  1. How do Spheros water heaters work?
    Spheros water heaters work by using diesel fuel to heat coolant, providing warmth to your vehicle without running the engine.

  2. Can I install a Spheros coolant heater in my truck myself?
    Absolutely! Our comprehensive installation manual offers step-by-step guidance, making it simple for DIY enthusiasts to follow.

  3. Is Spheros diesel coolant heater eco-friendly?
    Yes, Spheros heaters feature modest fuel consumption, making them an eco-conscious choice.

  4. Are Spheros water heaters noisy?
    No, Spheros heaters are designed to operate quietly, protecting your peace of mind in your vehicle.