Sauna stones, Black Vulcanite 20 Kg

Original Harvia Black Vulcanite sauna stones  

Black Vulcanite sSauna heater stone is a small granular, dark grey stone. When wet, the stone shines black making it a great-looking option with selected Harvia heaters. The stone’s volcanic origins date back to ca. 2000 million years. Based on its structure and composition, vulcanite is a good choice for a sauna stone as it is hard and durable.

• Stylish vulcanite sauna heater stone. Shines black when wet.
• For electric heaters and as a top stone for wood burning heaters
• Split-face stones store plenty of heat, making the water thrown onto them vaporise efficiently on the broad fracture surface
• The split-face stones are easy to stack and enable good air circulation
• Excellent resistance to heat fluctuations and thermal conductivity.
• Color and stone species: Dark grey vulcanite
• Stone size 5-10 cm and box weight 20 kg
• Does not contain harmful ingredients

Check the right stone size for your heater from the heater manual

Harvia sauna stones are selected according to old traditions and convey a genuine sauna atmosphere. Harvia sauna stones provide good and soft heat. Split-face sauna stones are the only correct stones for electric heaters and woodburning stoves, because they can store lots of heat and the water evaporates efficiently from the wide surface of fracture.

Angular split-face stones also allow for loose placement of the stones, which is the most important requirement particularly in electric heaters in order to make it possible for the heat to be conveyed to the sauna room between the hot stones and heating elements. Good air circulation in the stone space makes the electric heating elements last for as long as possible.