Upgrade your sauna with our 45 lb box of premium peridotite igneous rocks. Perfect for most sauna heaters, these stones are chosen for their durability and ability to withstand high temperatures. They ensure efficient heating and produce a gentle, soothing heat when water is applied, enhancing your sauna experience. The right stones are essential to avoid safety hazards and damage to your heater, making our peridotite rocks a reliable choice.