The project helps secure a reliable long-term heat supply for more than 80,000 residents and industrial consumers in the western part of the city.
ANDRITZ replaced an outdated high-pressure steam boiler, which had reached the end of its operational life, with a modern low-pressure steam boiler. This upgrade significantly improves the plant’s reliability, strengthening the overall operational stability of Zagreb’s heating system. It also increases fuel efficiency and reduces maintenance requirements.
The boiler has a capacity of 63 tons of steam per hour and operates within a pressure range of 14–17 bar(g) at 235 °C, ensuring stable steam production for industrial processes and the city’s heating system. Classified as a medium combustion plant with a fuel input below 50 MW, the unit fully complies with national emission regulations. Natural gas serves as the primary fuel, while light fuel oil is available as a secure backup option.
