Premium Sauna Heater Stones – Harvia Olivine Diabase & Black Vulcanite Series

Upgrade your sauna experience with the Harvia Olivine Diabase Sauna Stone Series and Black Vulcanite Sauna Stones—engineered for superior heat retention, rich steam production, and lasting performance in both electric and wood-burning sauna heaters. Sourced from nature and precision-selected for quality, these high-performance sauna stones deliver authentic Finnish sauna steam while enhancing the longevity of your heater.

🔥 Harvia Olivine Diabase Sauna Stones – Traditional Finnish Sauna Stone Choice

Crafted from dense, naturally occurring olivine diabase, these sauna stones are a staple in traditional Finnish sauna culture. Designed to absorb and retain intense heat, they ensure efficient water vaporization and a consistent, enveloping steam. Available in split-face or rounded shapes, Harvia sauna stones are ideal for electric and wood-burning sauna stoves across all sizes—from compact home units to commercial setups.

Available Harvia Models:

• AC3000 – Standard Split-Face Sauna Stones

  • Size: 5–10 cm (2"–4") | Weight: 33 lbs (15 kg)

  • Best for small to mid-size electric heaters (e.g., Harvia Vega, Kip, Cilindro, Club, TopClass)

  • Angular design improves airflow and thermal performance

• AC3020 – Large Split-Face Sauna Stones

  • Size: 10–15 cm (4"–6") | Weight: 44 lbs (20 kg)

  • Ideal for large electric or wood-burning heaters (e.g., Harvia Virta, Forte, M Series, Legend)

  • Maximized surface area for prolonged heat and steam output

• R-991 – Rounded Sauna Stones

  • Size: 5–10 cm (2"–4") | Weight: 33 lbs (15 kg)

  • Best used as a top layer for any sauna heater

  • Rounded form allows gentle steam to rise through layers for a softer experience

Why Choose Harvia Stones?

• Made from high-density olivine diabase—renowned for stability, longevity, and high heat capacity

• Angular split-face cuts ensure optimal airflow and steam release

• Rounded stones enhance steam softness and aroma

• Easy to stack, promoting even heating and protecting heater elements

• 100% natural, safe, and additive-free

🌋 Black Vulcanite Sauna Stones – Premium Sauna Stone Bundle

Add style and volcanic power to your sauna with Black Vulcanite Sauna Stones—now available in a convenient bundle package. These striking, dark grey stones are over 2 billion years old, formed from ancient volcanic activity, and deliver exceptional thermal performance with a glossy black finish when wet. Perfect as primary stones for electric heaters or as top-layer stones in wood-burning models.

Key Features:

• Elegant volcanic sauna stones with rich black sheen when wet

• Split-face texture boosts steam generation and water evaporation

• Outstanding heat retention and thermal conductivity

• Sized at 5–10 cm | Box weight: 20 kg

• Excellent airflow support for consistent, efficient heating

• Free from harmful substances and 100% natural

Usage Recommendations:

• Rinse all stones thoroughly before first use to remove natural dust

• Stack split-face stones on the bottom for solid heat, and rounded or vulcanite stones on top for balanced, layered steam

• Follow your sauna heater’s stone size and volume guidelines for best results

Shop Sauna Heater Stones Online – High Quality, Long Life, Natural Performance

Whether you're upgrading your sauna with Harvia heater stones or adding a bold aesthetic with Black Vulcanite volcanic stones, our curated selection guarantees premium results. These sauna rocks are ideal for anyone seeking a traditional, powerful, and visually refined sauna experience.

Resources:

Sauna Heater Sizing Tool