Narvi Rounded sauna stones olivine diabase 5-10cm ナルヴィ 丸型 サウナストーン 5-10cm 15kg

Narvi sauna stones are natural rocks used in saunas to produce heat and steam, enhancing the sauna experience. They work with both wood and electric stoves.

• The description claims that replacing sauna stones regularly ensures a comfortable sauna experience.
• The description claims that the replacement frequency varies based on usage: once a year for home saunas, every 3-6 months for commercial saunas, and every 2-3 years for less frequently used saunas.