Sauna stone vulcanite 20kilos for floor aggregate

Just put the sauna stones on the assembly for a extra liar of heat in the sauna, then just turn the assembly on and throw some water on it and the water will turn to steam.

To day when most pepole just want the high humidity in there sauna, you gone need some big stones to ade that extra lair of steam.

Just be sure to remove the stones from the assembly when not used for a longer period of time. 

Always lay the biggest stones on the bottom and the smaller on top for best results. This will also help the air circulation flow better. And remove all crackt or burned rocks.