Today, vehicle heating is synonymous with Spheros. This name stands worldwide for reliable, comfortable heating systems in buses. Well over 450,000 installed bus heaters attest to the competence and quality of the market leader. After all, the effective reduction of engine strain, guaranteed reliability thanks to innovative technology and the strong commitment to service and maintenance make Spheros heaters the preferred solution for temperature control. Spheros GmbH is the only manufacturer in the world to offer a gas heater for buses: the GBW 300.