Box for stove GFS ZK 25 Classic universal 1000

The cast iron box is necessary for stone/brick cladding and for organizing a closed sauna heater. The box offers many advantages and improves the operation of the sauna heater:

• improves steam formation;
• protects the inner walls of the sauna heater and the cladding from water ingress and, consequently, from temperature differences;
• prevents stones from falling down in the grooves between the cladding and the stove;
• the most heated part of the starter pipe is located inside the box, increasing the heating of the tab.