Harvia Sauna Rocks | Black Vulcanite
Harvia Black Vulcanite sauna stones: striking looks, built to last
Harvia’s Black Vulcanite sauna rocks combine performance with striking looks. With volcanic origins dating back roughly 2 billion years, these stones have a fine, uniform grain that turns a deep, glossy black when splashed with water, adding a bold visual element to the heater.
Beyond their appearance, Vulcanite rocks are exceptionally hard and durable, standing up well to the extreme heat and thermal cycling of sauna use. Their consistent granule size promotes even heat distribution across the heater, while their density helps them resist cracking and wear over time. Specifically selected to pair with a range of Harvia heaters, they’re a strong choice for anyone wanting both style and long-term reliability.
Key Features
- 20kg box, stone size 10-15cm
- Turns a striking glossy black when wet
- 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 Black Vulcanite sauna stones: striking looks, built to last
Harvia’s Black Vulcanite sauna rocks combine performance with striking looks. With volcanic origins dating back roughly 2 billion years, these stones have a fine, uniform grain that turns a deep, glossy black when splashed with water, adding a bold visual element to the heater.
Beyond their appearance, Vulcanite rocks are exceptionally hard and durable, standing up well to the extreme heat and thermal cycling of sauna use. Their consistent granule size promotes even heat distribution across the heater, while their density helps them resist cracking and wear over time. Specifically selected to pair with a range of Harvia heaters, they’re a strong choice for anyone wanting both style and long-term reliability.
Key Features
- 20kg box, stone size 10-15cm
- Turns a striking glossy black when wet
- 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
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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.
Customer testimonials
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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