{"title":"Stones","description":"","products":[{"product_id":"harvia-sauna-heater-stones-small-5-10cm-20kg-non-gaseous-explosion-safe","title":"Harvia Sauna Heater Stones (Small 5 - 10cm) 20kg – Non-Gaseous Explosion Safe","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHarvia Olivine Diabase Sauna Stones 5–10 cm – 20 kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Anyone fitting or maintaining an outdoor sauna with an electric or wood-burning heater. The go-to stone for first-time buyers and experienced bathers alike — trusted by Harvia and used in saunas worldwide.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHarvia Olivine Diabase sauna stones are the most widely used sauna stone in the world, and for good reason. Mined in western Finland from dense, sub-volcanic rock, these traditional dark grey stones absorb heat rapidly, hold it for longer, and release it evenly — producing the consistent, satisfying steam that defines a genuine Finnish sauna. The angular, split-face surface gives water more contact area, generating full, smooth löyly with every pour. Each 20 kg box contains stones sized 5–10 cm, the recommended size for electric heaters and for the top layer of wood-burning heaters.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStone type: Olivine diabase — traditional Finnish sauna stone\u003c\/li\u003e\n\u003cli\u003eSize: 5–10 cm (recommended for electric heaters)\u003c\/li\u003e\n\u003cli\u003eBox weight: 20 kg\u003c\/li\u003e\n\u003cli\u003eColour: Dark grey\u003c\/li\u003e\n\u003cli\u003eSplit-face surface for maximum heat release and steam generation\u003c\/li\u003e\n\u003cli\u003eEasy to stack with good air circulation between stones\u003c\/li\u003e\n\u003cli\u003eExcellent heat storage capacity, durability and thermal conductivity\u003c\/li\u003e\n\u003cli\u003eSafe and free from harmful chemicals\u003c\/li\u003e\n\u003cli\u003eMined in Finland\u003c\/li\u003e\n\u003cli\u003eCompatible with all Harvia electric and wood-burning heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow To Use\u003c\/strong\u003e Rinse stones before loading to remove dust. Stack loosely in the heater basket so stones support each other without resting their full weight on the heating elements. Ensure good gaps for airflow throughout. After loading, heat the sauna and throw a few ladles of water over the stones to disperse any natural stone scent on the first session. Inspect stones annually and replace any that are cracked or crumbling.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe Result\u003c\/strong\u003e Dense, even heat with rich, smooth steam every session. Olivine diabase maintains stable performance over years of regular use, making it the most reliable and cost-effective stone choice for any outdoor sauna.\u003c\/p\u003e","brand":"Dakam Outdoors","offers":[{"title":"Default Title","offer_id":53711405351253,"sku":"STN-HAR-003","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/4947\/9253\/files\/s-l960.webp?v=1776476731"},{"product_id":"harvia-sauna-stones-large-10-15cm","title":"Harvia Sauna Stones (Large) 10-15cm","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGot it — these are the \u003cstrong\u003eHarvia Sauna Stones (Large) 10–15 cm, 20 kg\u003c\/strong\u003e. Here's the description following the same format as the 5–10 cm stones:\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHarvia Olivine Diabase Sauna Stones 10–15 cm – 20 kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Anyone building or maintaining an outdoor sauna with a wood-burning heater, or looking to create a solid, long-lasting base layer in any electric heater with a large stone capacity. Ideal for larger heaters such as the Harvia Symphony and Fort series.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHarvia Olivine Diabase sauna stones in the larger 10–15 cm size are mined from dense, sub-volcanic rock in western Finland — the same traditional material that has been used in Finnish saunas for generations. The larger stone size makes them the perfect choice for the bottom layer of the heater, where they form a solid foundation, promote free air circulation, and provide even, stable heating throughout the stone bed. Their high density means they absorb and hold heat exceptionally well, releasing it slowly and consistently for a soft, lasting steam.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStone type: Olivine diabase — traditional Finnish sauna stone\u003c\/li\u003e\n\u003cli\u003eSize: 10–15 cm (recommended for base layer of wood-burning and large electric heaters)\u003c\/li\u003e\n\u003cli\u003eBox weight: 20 kg\u003c\/li\u003e\n\u003cli\u003eColour: Dark grey\u003c\/li\u003e\n\u003cli\u003eSplit-face surface for efficient heat absorption and steam generation\u003c\/li\u003e\n\u003cli\u003eEasy to stack with good air circulation between stones\u003c\/li\u003e\n\u003cli\u003eExcellent heat storage capacity, durability and thermal conductivity\u003c\/li\u003e\n\u003cli\u003eSafe and free from harmful chemicals\u003c\/li\u003e\n\u003cli\u003eMined in Finland\u003c\/li\u003e\n\u003cli\u003eCompatible with all Harvia wood-burning heaters and large-capacity electric heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow To Use\u003c\/strong\u003e Rinse stones before loading to remove dust. Place in the bottom layer of your heater basket, stacking loosely so stones support each other and allow airflow throughout. For electric heaters, finish the upper layers with smaller 5–10 cm stones to maximise steam generation. After loading, heat the sauna and throw a few ladles of water over the stones to disperse any natural stone scent on the first session. Inspect stones annually and replace any that are cracked or crumbling.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe Result\u003c\/strong\u003e A stable, long-lasting stone bed that holds heat evenly and delivers consistent, smooth steam session after session. The larger size is particularly effective in bigger heaters where a solid thermal foundation makes all the difference.\u003c\/p\u003e","brand":"Dakam Outdoors","offers":[{"title":"Default Title","offer_id":53711407219029,"sku":"STN-HAR-002","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/4947\/9253\/files\/s-l1600_1a2b67ae-4199-4791-adb7-358af84a9bea.webp?v=1776477290"},{"product_id":"complete-barrel-sauna-bundle-175cm-scandinavian-spruce-barrel-sauna-harvia-m60-6kw-heater-wooden-accessory-kit","title":"Complete 4 Person Barrel Sauna Bundle — 175cm Scandinavian Spruce Barrel Sauna, Harvia M60 6kW Heater \u0026 Wooden Accessory Kit","description":"\u003cp\u003eEverything you need for a ready-to-use garden sauna.\u003c\/p\u003e\n\u003cp\u003eThis complete package pairs our \u003cstrong\u003eOutdoor Wood Barrel Sauna (175cm wide, seats 2–4)\u003c\/strong\u003e with the \u003cstrong\u003eHarvia Top Steel M60 6kW\u003c\/strong\u003e electric heater and a \u003cstrong\u003efull wooden accessory kit \u003c\/strong\u003e— so you get the cabin, the heat source, and the finishing touches in one order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor Wood Barrel Sauna (175cm)\u003c\/strong\u003e — a distinctive barrel-shaped cabin crafted from high-quality Scandinavian spruce, a sturdy, weather-resistant softwood prized for saunas. Features a smooth, light-coloured wood interior and a durable black shingle roof, comfortably seating 2–4 people. Can be painted any colour to suit your garden.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarvia Top Steel M60 Electric Heater (6.0 kW) \u003c\/strong\u003e— a compact, wall-mounted Finnish-made heater with a built-in control unit (4-hour operation + 8-hour preset timer), ideal for cabins of 5–8 m³. Sauna stones are included (25 kg capacity), so it arrives ready to load and heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWooden Bucket, Ladle \u0026amp;amp; Thermo-Hygrometer Kit\u003c\/strong\u003e — a 4.0L natural pine bucket, 360mm solid-wood ladle, and a combined thermometer\/hygrometer for creating and monitoring the perfect steam-room climate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eTogether this gives you a stylish, fully equipped barrel sauna for the garden — cabin, heater with stones, and traditional accessories, all in one discounted bundle.\u003c\/p\u003e\n\u003cp\u003ePlease note: Heater installation and final electrical connection must be carried out by a qualified electrician (not included).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Dakam Outdoors","offers":[{"title":"Default Title","offer_id":54578662703445,"sku":null,"price":3199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/4947\/9253\/files\/CompleteBarrelSaunaBundle_175cmScandinavianSpruceBarrelSauna_HarviaM606kWHeater_WoodenAccessoryKit.png?v=1786325337"},{"product_id":"complete-barrel-sauna-bundle-175cm-scandinavian-spruce-barrel-sauna-harvia-m60-6kw-heater-wooden-accessory-kit-copy","title":"Complete 3 Person Barrel Sauna Bundle — 145cm Scandinavian Spruce Barrel Sauna, Harvia M60 6kW","description":"\u003cp\u003eEverything you need for a ready-to-use garden sauna.\u003c\/p\u003e\n\u003cp\u003eThis complete package pairs our \u003cstrong\u003eOutdoor Wood Barrel Sauna (145cm wide, seats 1-3)\u003c\/strong\u003e with the \u003cstrong\u003eHarvia Top Steel M60 6kW\u003c\/strong\u003e electric heater and a \u003cstrong\u003efull wooden accessory kit \u003c\/strong\u003e— so you get the cabin, the heat source, and the finishing touches in one order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor Wood Barrel Sauna (145cm)\u003c\/strong\u003e — a distinctive barrel-shaped cabin crafted from high-quality Scandinavian spruce, a sturdy, weather-resistant softwood prized for saunas. Features a smooth, light-coloured wood interior and a durable black shingle roof, comfortably seating 1-3 people. Can be painted any colour to suit your garden.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarvia Top Steel M60 Electric Heater (6.0 kW) \u003c\/strong\u003e— a compact, wall-mounted Finnish-made heater with a built-in control unit (4-hour operation + 8-hour preset timer), ideal for cabins of 5–8 m³. Sauna stones are included (25 kg capacity), so it arrives ready to load and heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWooden Bucket, Ladle \u0026amp;amp; Thermo-Hygrometer Kit\u003c\/strong\u003e — a 4.0L natural pine bucket, 360mm solid-wood ladle, and a combined thermometer\/hygrometer for creating and monitoring the perfect steam-room climate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eTogether this gives you a stylish, fully equipped barrel sauna for the garden — cabin, heater with stones, and traditional accessories, all in one discounted bundle.\u003c\/p\u003e\n\u003cp\u003ePlease note: Heater installation and final electrical connection must be carried out by a qualified electrician (not included).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Dakam Outdoors","offers":[{"title":"Default Title","offer_id":54669527384405,"sku":null,"price":2299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/4947\/9253\/files\/CompleteBarrelSaunaBundle_175cmScandinavianSpruceBarrelSauna_HarviaM606kWHeater_WoodenAccessoryKit.png?v=1786325337"}],"url":"https:\/\/dakam.co.uk\/collections\/stones.oembed","provider":"Dakam Outdoors","version":"1.0","type":"link"}