Harvia AC3020 Split-Face Sauna Stones | Olivine Diabase | 44 lbs | 10–15 cm
Harvia AC3020 Split-Face Olivine Diabase Sauna Stones | 44 lbs | 10–15 cm
The Harvia AC3020 split-face olivine diabase stones are the larger-format option in Harvia’s stone lineup, sized at 10–15 cm (4–6 in.) for sauna heaters and wood-burning stoves that specify bigger stones. The split-face cut exposes more raw stone surface than rounded stones, producing a denser, more enveloping steam when you ladle water for löyly. Each box contains 44 lbs of natural olivine diabase.
- Authorized Retailer of Harvia
- Manufacturer Warranty Included
- Free Shipping to the Contiguous US
- Secure Checkout
- U.S.-Based Customer Support
Product Overview
Olivine diabase is one of the most durable and heat-stable stone types for sauna use. The AC3020’s larger 10–15 cm size makes it the right choice for heaters with deeper stone beds or those that specifically require larger stones — common in higher-output electric heaters and larger wood-burning stoves.
The split-face cut creates more exposed surface area than rounded stones, which means more contact area for water and a richer steam output. Stack loosely following your heater manufacturer’s guidelines to maintain proper airflow around the heating elements.
Note: Natural stone varies in shape, color, and texture. Stone dust may be present from shipping — rinse stones before first use. Replace any cracked or crumbling stones per your heater manufacturer’s recommendations. Harvia recommends replacing sauna stones every 1–2 years depending on frequency of use.
Key Features
- Larger 10–15 cm size for heaters specifying bigger stones
- Split-face cut provides increased surface area for efficient steam generation
- Olivine diabase — dense, heat-resistant, and long-lasting
- Compatible with select electric sauna heaters and wood-burning sauna stoves
- Chemical-free natural stone
- 44 lbs per box
Stone Size Guide
| Stone Type | Size | Typical Use |
|---|---|---|
| Split-Face (AC3020) — This product | 4–6 in. (10–15 cm) | Larger heaters, deeper stone beds |
| Split-Face (AC3000) | 2–4 in. (5–10 cm) | Standard heaters, increased surface area |
| Rounded Olivine (R-991) | 2–4 in. (5–10 cm) | Traditional stacking, balanced heat |
Compatibility & Usage
- Compatible with select Harvia electric sauna heaters
- Compatible with select Harvia wood-burning sauna stoves
- Recommended where 10–15 cm (4–6 in.) stones are specified
- Always follow your heater or stove manufacturer’s stone loading and maintenance guidelines
- Many heaters require multiple boxes — check your heater’s stone capacity before ordering
Specifications
| SKU | AC3020 |
| Model | AC3020 |
| Stone Type | Olivine diabase |
| Style | Split-face |
| Stone Size | 4–6 in. (10–15 cm) |
| Weight | 44 lbs |
| Color | Natural gray |
| Compatible Heaters | Select electric and wood-burning sauna heaters (10–15 cm stone spec) |
What’s Included
- One 44 lb box of split-face olivine diabase sauna stones (10–15 cm)
Shipping & Delivery
This product includes free shipping within the contiguous United States. Ships via standard parcel service. Please inspect your shipment upon delivery and note any visible damage before signing.
About the Brand
Harvia is one of the world’s leading sauna and spa companies, founded in Finland in 1950. Known for their engineering precision and Scandinavian design philosophy, Harvia products are trusted by homeowners and professionals worldwide. Every product is designed and manufactured to meet the highest standards of safety, performance, and durability.
Complete Your Wellness Setup
Pair these stones with a compatible Harvia heater and accessories for a complete sauna setup:
- Harvia The Wall SWS60 6kW Electric Sauna Heater — wall-mounted, 177–294 cu. ft.
- Harvia AC3000 Split-Face Sauna Stones, 5–10 cm — smaller split-face option for standard heaters
- Harvia Steel Sauna Accessories Set SA006 — bucket, ladle & thermo-hygrometer
- Harvia Legend Sauna Bucket — black steel with thermo-aspen handle
Choose options