One of the biggest concerns in process engineering is the lack of available square metres. The Attsu HHE Hybrid fire-tube steam boiler solves this problem brilliantly by integrating two energy generation systems into a single pressure vessel. Traditionally, a company seeking to decarbonise its production would have to install a gas boiler and, in parallel, a separate electric boiler with its own manifold, valves and control system.
By choosing this hybrid model, the installation footprint is drastically reduced. By sharing the same water chamber and the same fire-tube steam boiler body, the steam and condensate pipework network is simplified, also reducing installation and thermal insulation costs. In addition, Attsu’s compact design allows the medium- or low-voltage electric heating elements to be integrated directly into the cylindrical body, maintaining full accessibility for maintenance without needing to expand the space allocated to the boiler room.
Attsu’s ability to optimise space is not limited to a standard catalogue; its differential value lies in tailor-made engineering. We understand that every boiler room has unique geometric constraints, which is why we adapt the design of the HHE Hybrid fire-tube steam boiler to fit replacement projects or new plants with limited floor space. Manufacturing at its own facilities in Girona and Madrid enables Attsu to offer customised solutions, such as reorienting connections or adjusting the dimensions of the burner and electrical panel. This national manufacturing service ensures that each fire-tube steam boiler is a solution that maximises every available square metre without compromising power or safety.