Sauna Stones

Premium Sauna Stones for Electric & Wood-Burning Sauna Heaters

Sauna stones are an essential part of every sauna, storing heat and producing the rich steam (löyly) that defines the sauna experience. Whether you’re replacing worn stones or installing a new heater, choosing the right sauna stones helps improve heat retention, steam production, and overall heater performance.

Bsaunas offers premium sauna stones for electric sauna heaters and wood-burning sauna stoves, including both traditional split stones and rounded decorative options to suit different heater designs and personal preferences.

Traditional Olivine Diabase Sauna Stones 10–15 cm 20 kg

From CAD$60.00

Traditional Olivine Diabase Sauna Stones 5–10 cm 20 kg

From CAD$60.00

Rounded Olivine Diabase Sauna Stones 5-10 cm 15kg

From CAD$88.00

Rounded Olivine Diabase Sauna Stones 3-5 cm 15kg

From CAD$88.00

White sauna stones 5-10 cm 10 kg

From CAD$150.00

Jadeite Sauna Stones – Polished (5–9 cm, 10 kg)

From CAD$150.00

What are sauna stones, and why are they important?

Sauna stones are an essential part of every sauna heater. They absorb and store heat, then release it gradually to create the rich steam (löyly) produced when water is poured over them. High-quality sauna stones improve heat retention, provide more even temperatures, and contribute to a more enjoyable sauna experience.

Which sauna stones should I choose?

Choose only sauna-rated stones designed for sauna heaters. Traditional olivine diabase sauna stones are suitable for virtually all electric sauna heaters and wood-burning sauna stoves, offering excellent durability, heat retention, and resistance to repeated heating and cooling cycles. Rounded sauna stones are often selected for heaters with an exposed stone design, while vulcanite sauna stones are a premium option for frequent sauna use. Always follow your heater manufacturer’s recommendations for stone size.

Do HUUM heaters require rounded sauna stones?

No. Traditional olivine diabase sauna stones are fully compatible with HUUM heaters when the recommended stone size is used. Many sauna owners choose rounded sauna stones because they complement the open stone design of HUUM heaters, making them primarily an aesthetic choice rather than a requirement.

How should sauna stones be prepared before first use?

Before placing new sauna stones into the heater, rinse them with clean water to remove dust and loose particles. After installation, heat the sauna once to its normal operating temperature and allow the stones to cool naturally before pouring water over them. This helps prepare the stones for regular use.

How should sauna stones be stacked?

Stack sauna stones loosely, leaving small gaps between them to allow proper airflow through the heater. Avoid packing the stones tightly or forcing them between the heating elements. The heating elements should be completely covered by stones, and the top layer should provide good coverage to ensure water evaporates from the stones rather than directly from the heating elements.

How often should sauna stones be inspected or replaced?

Inspect your sauna stones at least once a year or after approximately 300 hours of heater operation. Replace stones that are cracked, broken, or significantly worn. If your sauna is used several times a week, more frequent inspection may be necessary.

When should I replace my sauna stones?

Replace sauna stones when you notice longer heat-up times, reduced steam production, broken or crumbling stones, or small stone fragments collecting at the bottom of the heater. Replacing worn stones and removing debris helps maintain airflow and proper heater performance.

Can I use ordinary rocks instead of sauna stones?

No. Only sauna-rated stones should be used in a sauna heater. Quality sauna stones are selected for their density, durability, and ability to withstand repeated heating and cooling cycles. Ordinary rocks—including river rocks and landscaping stones—may contain trapped moisture or unsuitable mineral compositions, increasing the risk of cracking or breaking when exposed to sauna temperatures.

Sauna Stones

Premium Sauna Stones for Electric & Wood-Burning Sauna Heaters

Frequently Asked Questions About Sauna Stones