Harvia Vulcanite Sauna Heater Stones, Split-Face, 5-10cm
Harvia AC3040 Vulcanite Sauna Heater Stones – Split-Face 5–10 cm
The Harvia AC3040 Vulcanite Sauna Heater Stones are premium split-face sauna stones designed for reliable heat retention, efficient steam production, and a distinctive dark appearance. Made from fine-grained dark grey vulcanite, these stones turn black when wet, creating a clean, elegant look inside the sauna heater.
Designed for use with compatible electric sauna heaters and as surface layer stones for wood-burning sauna stoves, Harvia AC3040 stones help support proper airflow, steady heat distribution, and effective water vaporization when water is ladled over the stones.
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- Manufacturer Warranty Included
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Details & Benefits
- Premium Harvia 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
- Suitable for compatible electric sauna heaters
- Can also be used as surface layer stones for compatible wood-burning sauna stoves
- Designed to stack well for proper airflow through the heater
- High thermal conductivity for strong heat performance
- Excellent resistance to sauna temperature fluctuations
- Does not contain harmful ingredients
- Stone size ranges from 2" to 4" / 5–10 cm
- Each box weighs approximately 44.1 lbs. / 20 kg
Sauna Stone Fit & Use
The Harvia AC3040 stones are designed for 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 AC3040 Vulcanite Sauna Heater Stones
- Split-face stones sized approximately 2" to 4" / 5–10 cm
Harvia AC3040 Specifications
| Brand | Harvia |
| Model | AC3040 |
| SKU | AC3040 |
| Product Type | Sauna Heater Stones |
| Stone Size | 2"–4" / 5–10 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 installation requirements before use.
Why Choose Harvia AC3040 Vulcanite Sauna Stones?
Harvia AC3040 Vulcanite Sauna Heater Stones are a strong choice for sauna owners who want durable, attractive, and high-performing sauna stones for compatible heaters. Their split-face design helps store heat, supports efficient steam production, and allows air to move through the heater for consistent sauna performance.
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Harvia Vulcanite Sauna Heater Stones, Split-Face, 5-10cm Review Summary
What people like
Pros
- High Heat Retention: Reviewers consistently praise these stones for their ability to hold and distribute heat effectively, maintaining a steady temperature throughout the sauna session.
- Efficient Steam Generation: The split-face texture provides an increased surface area that allows water to vaporize efficiently, resulting in a soft and pleasant steam quality.
- Exceptional Product Durability: Because of a specialized heat treatment process, these stones are noted for their long service life and ability to withstand frequent thermal changes without breaking down.
- Easy Stacking Design: The angular shapes allow users to stack the stones loosely and securely, which promotes optimal airflow around the heating elements.
Cons
- Higher Market Price: Customers often note that these heavy-duty stones are significantly more expensive than standard alternatives, especially in North American markets.
- Initial Cleaning Needed: Several users reported that the stones arrive covered in fine dust and grit, requiring a thorough washing before they can be safely placed in the heater.
- Heavy Shipping Load: Due to the high density of the material, customers have mentioned that the boxes are difficult to move and can occasionally split open during the delivery process.
- Possible Material Fragmentation: Some reviews indicate that the stones can shift during transit, leading to a small amount of rubble or broken fragments found at the bottom of the packaging.
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