Placing of sauna stones
The placing of sauna stones has a major effect on the heater's safety and steam-creation properties.
See Images > 5. Piling of the Sauna Stones, > 6. Safety function
Important information about sauna stones:
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50 kg is a suitable amount. The amount of stones varies, depending on the type of stone.
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Only stones with a diameter of 2-4" (5–10 cm) are allowed.
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The stone surface may be rounded. The use of stones with a cleavage surface is not allowed.
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Suitable stone materials are peridotite, olivine diabase and olivine.
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Ceramic 'stones' and soft soapstone are not allowed. They do not absorb enough heat as the heater is being used.
Soft stones may crumble and block the air vents. This may break the heating elements and cause the product to
behave unlike it was designed.
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Rinse any stone dust off the stones before placing them in the heater.
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How placing the stones, observe the following:
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Start with the biggest stones, placing them at the bottom and sides. This ensures sufficient air ventilation and
forms a steady base for the stone space.
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Place the stones closely against the steel grid, and loosely at the top. Make sure the heating elements are not
visible between the stones. A dense layer will prevent direct heat radiation from overheating materials around the
heater. Placing stones loosely in the middle will allow air to flow through the heater, heating the sauna and sauna
stones well.
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Place stones one by one. Do not drop them in the stone space.
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Before using the heater for the first time, make sure that the stones cannot fall off.
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We recommended that you keep some extra stones in store to replace broken ones or to add any if the stone level
becomes lower over time.
Do not place any items or devices in the stone space or its vicinity that can change the amount or
direction of air flowing through the heater.
If a heating element is not surrounded by stones, it can heat materials dangerously hot, even beyond
the heater's safety distances. Make sure that the heating elements are not visible beyond the stones.
As the user, you are responsible for ensuring that the stone space is properly maintained throughout
the heater's life cycle.
Maintenance:
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Due to large variation in temperature, the sauna stones disintegrate in use. Rearrange the stones at least once a
year or even more often if the sauna is in frequent use. Replace any disintegrated stones with new ones. By doing
this, the heating capability of the heater stays optimal and the risk of overheating is avoided.
Check occasionally whether the stone level has become lower. Make sure that the heating elements
do not become visible over time. The stone level is likely to become lower in about two months after
the stones have been placed.
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