The usual sauna oven stones include impurities which are released to the sauna air under the influence of the glowing resistor. The stone gets lighter in weight and it disintegrates, it looses its heat conductivity and sand will fall down on the floor. The time for heating-up the sauna gets longer. The stones must be replaced! This is why it is increasingly popular to equip company saunas with the Kerkes Sauna Oven Stones. The ceramic oven stones which are made carefully guarantee unique sauna bath. Clean, special ceramic pulp which is burned in the temperature of higher than 1300 ºC is heat-shock resistant and does not crumble or release any hazardous gas into the sauna air. You can enjoy clean, relaxing and nice sauna bath. The Kerkes Sauna Oven Stones last almost forever in domestic use. Once the stones are properly installed the sauna oven will not need any oven stone maintenance.
20 kg, Only for electric heaters
Tetra Shaped Stones
There are two sizes of tetra shaped oven stones – large and small. The tetra shaped stones are used as topside stones in all sauna ovens. The fire or the air flow in the sauna oven is regulated by the thickness of the surface stone layer. The surface construction of the tetra shaped stone guarantees intense heat.
Ball Shaped Stones
The ball shaped stones are used in wood heating based sauna ovens and in the ovens which have a deep cavity for stones. The ball shaped stones improve the convection of air in the oven. The contact area with the red glowing metal / the heating resistor is small and therefore the heat flows better in the sauna oven. The diameter of the ball shaped stones is approximately 50 mm, 60 mm, 80 mm or 95 mm.
The Interspace Resistor Stones
The interspace stones are used between the resistors in electric sauna ovens to support the resistors. The shape of the stones prevents their too tight placing. The thickness of the interspace resistor stone depends on the gap of the resistor. The diameter of the intermediate stones is approximately 25 mm, 35 mm, 40 mm or 50 mm.
It is recommended that all stones should be rinsed to remove any stains or dust that can cause unpleasant odor during the first few times of using the heater.