Rounded olivine diabase sauna heater stones (2-4 in, 33 lbs) from Harvia are designed to resemble smooth natural stones, like those found in large river rapids. These rounded stones create an impressive, natural-looking finish on the surface layer of your sauna heater, enhancing both performance and aesthetics.

Designed for electric and wood-burning sauna heaters, these stones ensure even heat distribution and smooth steam. Their rounded shape promotes better air circulation, providing a gentler, more enjoyable sauna session. Made from high-quality natural stone, they are durable and resistant to high temperatures.