Harvia Sauna Heater Stones
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The Harvia Sauna Heater Stones are a 20kg bag of small-grade olivine diabase rocks sized between 5 and 10cm, designed specifically for use in sauna heaters. Harvia is a well-respected Finnish sauna brand, and these stones carry a non-gaseous, explosion-safe guarantee that provides peace of mind during high-heat use. Overall, they offer a reliable, safety-conscious option for maintaining consistent steam production and heat retention in home or commercial saunas.
Key Features & Specs
| Weight | 20kg bag, suitable for a full heater reload or initial fill |
|---|---|
| Stone Size | Small grade, 5 to 10cm per stone, ideal for most standard sauna heaters |
| Material | Olivine diabase, a dense volcanic rock known for excellent heat retention and steam performance |
| Safety | Certified non-gaseous and explosion-safe, reducing risk of cracking or popping under extreme heat |
| Brand Origin | Harvia, a leading Finnish sauna manufacturer with decades of industry expertise |
| Compatibility | Suitable for most electric and wood-burning sauna heaters that accommodate small-grade stones |
| Replacement Cycle | Stones typically recommended for replacement every 1 to 2 years depending on frequency of use |
Best for: Sauna owners looking for a trusted, safety-guaranteed stone from a reputable Finnish brand to ensure reliable heat retention and consistent löyly steam in both home and commercial sauna setups.