Protherm TK-S 350-750 (960) kW

The TK-S hot water boiler (output > 350 kW) is a specific boiler design with two banks of horizontal flue tubes. The fuel grate is water-cooled. These boilers are intended for heating larger spaces such as residential and commercial buildings, production facilities, schools, halls and similar. It operates at a temperature regime of 90/70 °C and is installed as a single unit or as several units in series, depending on the designed capacity. The minimum permitted operating temperature is 50 °C. On customer request, it can be manufactured with an output of up to 960 kW.

Overheating of the boiler (temperatures above 90 °C) is prevented by installing a draught regulator, which is connected to the air flap on the lower door. A mixing valve is recommended to protect against condensation.

The boilers are made of sheet steel, and the combustion chamber of boiler plate. The boiler casing is electrostatically painted.

They are designed for burning solid fuel (wood, coal and briquettes). The boiler can also be converted to burn pellets by adding a conversion kit – a special door, a pellet hopper and a burner (supplied with a pellet screw conveyor and a control unit).

The boiler efficiency is 75-80%, and at least 85% when burning pellets.

The boiler comes with a 5-year warranty, with service and spare parts provided.