Narvi
Sauna Stones - Grade A Finnish Olivine Diabase 20 kg
Sauna Stones - Grade A Finnish Olivine Diabase 20 kg
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Description
Description
Grade A Finnish olivine diabase is the traditional sauna stone: durable and known for the excellent soft steam it releases when water meets hot rock. The stones suit any sauna heater, wood-burning or electric, and come in two sizes, 5–10 cm and 10–15 cm, so you can match the grade your heater specifies. Where a heater calls for both, the larger stones sit at the base with the smaller grade layered on top. Each box contains approximately 20 kg, and as a natural material some colour variation between stones is entirely normal.
Features
Technical Specification
| Specifications | |
| Stone type | Grade A Finnish olivine diabase |
| Stone sizes | 5–10 cm or 10–15 cm |
| Box weight | Approximately 20 kg |
| Suitable for | All wood-burning and electric sauna heaters |
| Appearance | Natural stone; some colour variation between stones is normal |
| Stone requirements by heater (kg) | |
| Wood-burning heaters | |
| Luosto & Luosto Water Tank | 35 kg |
| Inari | 40 kg (5–10 cm) + 20 kg (10–15 cm) |
| Kuru 14 & 14 Water Tank | 35 kg |
| Kuru 20 | 40 kg |
| Narvi NC 16 | 50 kg |
| Narvi NC 20 & 20 Water Tank | 60 kg |
| Narvi NC 24 | 80 kg |
| Narvi Stony | 60 kg (5–10 cm) + 150 kg (10–15 cm) |
| Narvi Steam Master | 100 kg |
| Narvi 30 | 60 kg |
| Narvi 50 | 100 kg |
| Narvi Velvet | 100 kg (5–10 cm) + 60 kg (10–15 cm) |
| Aito 16 & 16 Water Tank | 50 kg |
| Aito 20 & 20 Water Tank | 60 kg |
| Aito 24 & 24 Water Tank | 80 kg |
| Electric heaters | |
| Narvi Velvet Electric | 140 kg |
| Narvi Slim | 30 kg |
| Narvi NM | 30 kg |
| Narvi Softy | 120 kg |
| Narvi Style | 60 kg |
| Narvi Steam Ready | 80 kg |
| Narvi NC Electric | 30 kg |
| Narvi Saana | 80 kg |
| Commercial sauna heaters | |
| Narvi Ultra | 50 kg |
| Narvi Ultra Big | 120 kg |
| Narvi Ultra Small | 30 kg |
| Narvi Style Pro | 80 kg |
Loading the stones
For both wood-burning and electric heaters, fill the stones to the rim without exceeding it, and place them so the space between stones is as open as possible. This gives a perfect löyly: water can cascade down through the full heating capacity while air flows freely between the stones. Where a heater requires both grades, use the larger stones at the base and add the smaller grade on top. Guides on how to arrange, check and change your sauna stones, including video demonstrations, are available at finnmarksauna.com.
Care and replacement
Over time even the highest quality diabase fractures. Depending on usage, replace the stones every one to two years to keep the voids between them open for water and air, and because a stone's heat capacity relates to its size. A simple check: compare the stones to your closed fist, and once they have worn smaller than this, replace them.
Brand
Quarried Finnish olivine diabase, supplied by Narvi.
Ordering
Sauna stones ship as heavy boxed goods. If you are unsure which grade or quantity your heater needs, contact support@finnmarksauna.com before ordering.
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Delivery & Returns
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
Description
Grade A Finnish olivine diabase is the traditional sauna stone: durable and known for the excellent soft steam it releases when water meets hot rock. The stones suit any sauna heater, wood-burning or electric, and come in two sizes, 5–10 cm and 10–15 cm, so you can match the grade your heater specifies. Where a heater calls for both, the larger stones sit at the base with the smaller grade layered on top. Each box contains approximately 20 kg, and as a natural material some colour variation between stones is entirely normal.
Features
| Specifications | |
| Stone type | Grade A Finnish olivine diabase |
| Stone sizes | 5–10 cm or 10–15 cm |
| Box weight | Approximately 20 kg |
| Suitable for | All wood-burning and electric sauna heaters |
| Appearance | Natural stone; some colour variation between stones is normal |
| Stone requirements by heater (kg) | |
| Wood-burning heaters | |
| Luosto & Luosto Water Tank | 35 kg |
| Inari | 40 kg (5–10 cm) + 20 kg (10–15 cm) |
| Kuru 14 & 14 Water Tank | 35 kg |
| Kuru 20 | 40 kg |
| Narvi NC 16 | 50 kg |
| Narvi NC 20 & 20 Water Tank | 60 kg |
| Narvi NC 24 | 80 kg |
| Narvi Stony | 60 kg (5–10 cm) + 150 kg (10–15 cm) |
| Narvi Steam Master | 100 kg |
| Narvi 30 | 60 kg |
| Narvi 50 | 100 kg |
| Narvi Velvet | 100 kg (5–10 cm) + 60 kg (10–15 cm) |
| Aito 16 & 16 Water Tank | 50 kg |
| Aito 20 & 20 Water Tank | 60 kg |
| Aito 24 & 24 Water Tank | 80 kg |
| Electric heaters | |
| Narvi Velvet Electric | 140 kg |
| Narvi Slim | 30 kg |
| Narvi NM | 30 kg |
| Narvi Softy | 120 kg |
| Narvi Style | 60 kg |
| Narvi Steam Ready | 80 kg |
| Narvi NC Electric | 30 kg |
| Narvi Saana | 80 kg |
| Commercial sauna heaters | |
| Narvi Ultra | 50 kg |
| Narvi Ultra Big | 120 kg |
| Narvi Ultra Small | 30 kg |
| Narvi Style Pro | 80 kg |
Loading the stones
For both wood-burning and electric heaters, fill the stones to the rim without exceeding it, and place them so the space between stones is as open as possible. This gives a perfect löyly: water can cascade down through the full heating capacity while air flows freely between the stones. Where a heater requires both grades, use the larger stones at the base and add the smaller grade on top. Guides on how to arrange, check and change your sauna stones, including video demonstrations, are available at finnmarksauna.com.
Care and replacement
Over time even the highest quality diabase fractures. Depending on usage, replace the stones every one to two years to keep the voids between them open for water and air, and because a stone's heat capacity relates to its size. A simple check: compare the stones to your closed fist, and once they have worn smaller than this, replace them.
Brand
Quarried Finnish olivine diabase, supplied by Narvi.
Ordering
Sauna stones ship as heavy boxed goods. If you are unsure which grade or quantity your heater needs, contact support@finnmarksauna.com before ordering.
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
