Heater stones Harvia 10-15cm

The Olivine-diabase stones are widely recognized and commonly used in saunas for all types of heaters. These stones are extracted from subvolcanic rocks found in western Finland. This traditional stone variety is known for its structural durability and high density, enabling efficient heat storage and release. As a result, it ensures optimal steam generation in the sauna.

These high-quality angular stones are specifically designed for use in large electric heaters and wood-burning heaters. The split stones have a substantial heat retention capacity, allowing water thrown on them to evaporate efficiently due to their wide fracture surface. They are also easy to stack, promoting good air circulation within the sauna. The olivine-diabase heater stones have a dark gray color and possess excellent heat storage capacity, durability, and thermal conductivity. Each stone measures 10-15 cm, and the box weight is 20 kg.