Obsidian series hot water boiler is designed for solid, liquid gas and biomass fuel use. In addition to effortless and trouble-free use thanks to its fully automatic control, it provides savings with low fuel consumption. Obsidian series boilers, thanks to the movement of the grates in the combustion chamber and its highly efficient stepped structure, burns almost all of the fuel during solid fuel use and converts it into ash format. Production can be made according to different pressure values. Thanks to the platform and ladder mounted on the boiler, access to the boiler branches, pre-smoke box and boiler bunker is facilitated.

When designing the thermal construction of the boiler, it is handled in two different ways. One of them is the smoke side thermal construction and the other is the water side thermal construction. The important thing in the smoke side thermal construction is that the smoke gases resulting from combustion travel through the boiler at the speed they should travel.