Saunum Sauna Heater Stones – Premium Rounded Olivine 2″-4″ (5-10 cm)

Upgrade Your Sauna Experience with High-Capacity Olivine Stones

The Saunum Sauna Heater Stones are crafted from premium olivine diabase—pre-washed, ready to use—and precisely sized to 2″ to 4″ (5-10 cm) for superior steam generation and heat retention. 
Housed in a 33 lb (≈15 kg) box, these stones deliver high-heat capacity performance, ensuring your heater operates efficiently and your sessions feel smoother and more indulgent.
Note: Many sellers state these stones are sold only with a sauna heater purchase. 

Key Features:

• Made of high-quality olivine diabase raw stone—known for excellent thermal properties and durability. 

• Rounded shape (2″-4″ / 5-10 cm) helps water penetrate deeper, creating softer, more consistent steam instead of harsh bursts. 

• Pre-washed and ready to use; designed to fit modern sauna heater baskets and support optimal stacking and airflow. 

• Substantial box weight (33 lbs) ensures enough stone volume for a full heater load. 

Health & Wellness Benefits:

• Enables more consistent, gentler steam, reducing extreme temperature swings and making your sauna session more comfortable and effective for relaxation and circulation.

• Improves sauna heater performance, helping you maintain heat longer—supporting deeper sweat, enhanced detoxification, and skin renewal.

• Reliable stone volume helps maintain safe and optimal heater function, supporting the longevity of your sauna’s components and allowing uninterrupted wellness sessions.