Sauna heater stones, rounded, 15 kg, under 10 cm

Elegant rounded stones for sauna heater made of olivine diabase.
Selected, clean, and safe to use. Reminiscent of rounded natural stones from great rapids. Rounded stones provide softer steam.

They should be laid loosely to ensure good air circulation and extend the life of the heater. Especially in heaters with a smaller volume of stones, use angular stones of the same size in the lower layers, as they provide a larger surface area for water heating.