Harvia AC3045 Black Vulcanite Sauna Heater Stones, Split-Face, 10-15cm
Harvia AC3045 Black Vulcanite Sauna Heater Stones – Split-Face 10–15 cm
The Harvia AC3045 Black Vulcanite Sauna Heater Stones are premium split-face sauna stones designed for excellent heat retention, efficient steam production, and a bold dark appearance inside compatible sauna heaters. Made from fine-grained dark grey volcanic stone, these stones turn black when wet, creating a clean, distinctive look that complements both traditional and modern sauna interiors.
Designed for use with compatible electric sauna heaters and as surface layer stones for wood-burning sauna stoves, Harvia AC3045 stones help support steady heat distribution, strong airflow, and smooth steam when water is ladled over the stones.
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- Authorized Retailer of Harvia
- Manufacturer Warranty Included
- Free Shipping to the Contiguous US
- Secure Checkout
- U.S.-Based Customer Support
Details & Benefits
- Premium Harvia black vulcanite sauna heater stones
- Split-face design helps store heat and support efficient steam production
- Fine-grained dark grey volcanic rock turns black when wet
- Stone size ranges from 4" to 6" / 10–15 cm
- Suitable for compatible electric sauna heaters
- Can also be used as surface layer stones for compatible wood-burning sauna stoves
- Easy to stack for proper airflow through the heater
- High thermal conductivity for reliable sauna performance
- Excellent resistance to sauna temperature fluctuations
- Does not contain harmful ingredients
- Each box weighs approximately 44.1 lbs. / 20 kg
Sauna Stone Fit & Use
The Harvia AC3045 stones are designed for compatible sauna heater use and should be selected according to the stone requirements for your specific heater model. Always check your sauna heater manual to confirm the correct stone size, stone type, and total stone weight required before installation.
Because natural sauna stones vary in shape and size, it is recommended to purchase an additional box when possible. This allows the installer to select the best-fitting stones for airflow, fit, form, and function.
What's Included
- One 44.1 lb. box of Harvia AC3045 Black Vulcanite Sauna Heater Stones
- Split-face stones sized approximately 4" to 6" / 10–15 cm
Harvia AC3045 Specifications
| Brand | Harvia |
| Model | AC3045 |
| SKU | AC3045 |
| Product Type | Sauna Heater Stones |
| Stone Size | 4"–6" / 10–15 cm |
| Color | Dark grey / black when wet |
| Shape | Split-Face |
| Material | Vulcanite Stone |
| Weight | 44.1 lbs. / 20 kg |
| Compatible Use | Compatible electric sauna heaters and surface layer use for compatible wood-burning sauna stoves |
Shipping Information
Shipping: Free shipping within the contiguous United States.
Sauna stones are heavy and ship by freight with a scheduled delivery appointment. They arrive on a wooden pallet packaged in three-ply cardboard for added protection during transit. The freight carrier is responsible for delivery only and may provide limited assistance at the delivery site.
Product Document
Use the link below to review the Harvia vulcanite sauna stone certificate.
Warranty
Manufacturer warranty coverage may apply according to Harvia's terms and conditions. Please review the product documentation and heater requirements before use.
Why Choose Harvia AC3045 Black Vulcanite Sauna Stones?
Harvia AC3045 Black Vulcanite Sauna Heater Stones are a durable and attractive choice for compatible sauna heaters that require larger 10–15 cm stones. Their split-face shape helps store heat, supports strong steam production, and allows air to circulate through the heater for consistent sauna performance.
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