Harvia Olivine Diabase Sauna Stones AC3020 — 10–15 cm, 20 kg (per bag)

The larger grade of Harvia's olivine diabase sauna stones — the 10–15 cm size, ideal for wood-burning stoves with generous stone trays where you want more air gaps between the stones for a bigger, more billowing löyly.

Olivine diabase carries a beautifully high thermal mass — it soaks up heat during a session and releases it slowly, giving you sustained warmth rather than a quick burst that fades.

At a glance

• Stone type: Olivine diabase
• Size: 10–15 cm
• Bag weight: 20 kg
• Product code: AC3020
• Made in: Finland

Rinse before first use to wash off any quarry dust.