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Black vulcanite sauna 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. Good stone gravity and heat storage capacity.
  • 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
Weight10 kg


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