The Geyser District Heating Reactor (GDHR) and a low-temperature steam-cycle, the Geyser Thermal Energy Converter (GTEC), make a system with remarkable features. The estimated costs project, that relatively small plants distributed over a network, or operating autonomously, are cost effective. As a cogeneration device the Geyser system can supply ample heating power and some electricity opening new alternatives. Innovative combination of conventional components besides using advanced design and analysis techniques available to engineers today allow further increase of the thermal efficiency.