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SSSauna Stone Notes Begin here

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  1. What sauna stones do in a heater

    What the stones in an electric sauna heater are for, how they hold heat and make steam, and why their condition and placement matter.

  2. Sauna stone types compared: olivine diabase, vulcanite and granite

    The rock names on sauna stone product pages, olivine diabase, vulcanite and decorative granite, and what makers and references say about each.

  3. How to stack sauna stones in an electric heater

    General stacking points from heater makers for electric heaters, so air can move and the elements stay supported. Your manual comes first.

  4. Choosing the right stone size for your heater

    Stone sizes makers list, 3-5, 5-10 and 10-15 cm, why the size matters in electric heaters, and why your manual's range is the one to follow.

  5. How many stones does a sauna heater need?

    Where to find the stone weight for your sauna heater, examples from HUUM's published list, and what overloading or underloading can do.

  6. Why garden and river rocks are a bad idea in a sauna heater

    What Harvia says about stones collected from nature, why heater stones are quarried and tested, and what to use instead. Check your own manual.

  7. Cracked or crumbling sauna stones: what it means

    What heater makers say about stones that split or turn to dust, how to check them, and why broken stones can restrict airflow in the heater.