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Harvia Sauna Rocks | Olivine Grey
Harvia Olivine Diabase sauna stones: dense, durable, built for authentic löyly
Harvia’s Olivine Diabase sauna rocks are sourced from Western Finland, a region known for producing high quality subvolcanic stone. Finished in a natural dark grey, these rocks are prized for their density and durability, allowing them to store and release heat efficiently over repeated heating cycles. That efficient heat retention translates into strong, consistent steam (löyly) for a more authentic sauna experience.
Supplied in a 20kg box with stones sized 10-15cm, these rocks suit a wide range of sauna heaters and are a reliable, traditional choice for anyone wanting long-lasting performance without compromising on heat quality.
Key Features
- 20kg box, stone size 10-15cm
- Sourced from Western Finland’s subvolcanic rock deposits
- Dense composition for excellent heat storage and retention
- Withstands repeated heating and cooling without breaking down
- Produces optimal steam for a genuine sauna experience
- Compatible with most sauna heater models
- Note: heavy item shipping rates apply for this item
Harvia Olivine Diabase sauna stones: dense, durable, built for authentic löyly
Harvia’s Olivine Diabase sauna rocks are sourced from Western Finland, a region known for producing high quality subvolcanic stone. Finished in a natural dark grey, these rocks are prized for their density and durability, allowing them to store and release heat efficiently over repeated heating cycles. That efficient heat retention translates into strong, consistent steam (löyly) for a more authentic sauna experience.
Supplied in a 20kg box with stones sized 10-15cm, these rocks suit a wide range of sauna heaters and are a reliable, traditional choice for anyone wanting long-lasting performance without compromising on heat quality.
Key Features
- 20kg box, stone size 10-15cm
- Sourced from Western Finland’s subvolcanic rock deposits
- Dense composition for excellent heat storage and retention
- Withstands repeated heating and cooling without breaking down
- Produces optimal steam for a genuine sauna experience
- Compatible with most sauna heater models
- Note: heavy item shipping rates apply for this item
Customer testimonials
These guys are great! Awesome communication, open to discussions and ongoing support and made everything easy as I had hoped! Would recommend for anyone considering a sauna (ours gets a daily run now!)
I recently purchased the Gladstone model from Tasman Saunas, and it's truly exceeded all my expectations. This 6-person barrel sauna, beautifully crafted from Canadian Red Cedar, is not only a stunning addition to my outdoor space but also a powerhouse of warmth, consistently reaching temperatures of 85+ degrees Celsius.
Tasman Saunas made the purchase process a breeze. His professionalism and commitment to customer satisfaction were outstanding. The installation team was equally impressive, with their efficient and detail-oriented approach ensuring a seamless setup.
The guys at Tasman Saunas are incredible! It took me a while to make my mind about choosing what was the best option for me but the guys were very knowledgeable and patient. I am very happy with the service and product.
Fantastic build quality and Dylan was a pleasure to talk to. Really happy with the experience!
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Why Tasman Saunas
We believe every sauna should be as unique as your home. Each one is handcrafted in small batches to ensure precision and quality.
Premium Quality
Our saunas are crafted with premium materials for unmatched durability and performance — no joint wood, no harmful chemicals, just pure quality you can rely on.
Sustainability Sourced Timber
Our saunas are crafted from top tier red cedar and hemlock, sustainably sourced and certified by FSC® and PEFC™ for eco-friendly luxury.
#1 Finnish Heaters
Enjoy the best in heat performance with heaters from Finland’s leading brands, including Harvia and Sawo, globally trusted for their power, efficiency, and reliability.
Handmade Construction
Each sauna is carefully handcrafted and polished in our specialised facility, undergoing strict quality checks and performance testing before it reaches your door.
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