{"id":20115,"date":"2025-08-20T11:57:00","date_gmt":"2025-08-20T04:57:00","guid":{"rendered":"https:\/\/www.poolspa.co.th\/products\/uncategorized\/harvia-sauna-heater-stones-black-vulcanite\/"},"modified":"2026-06-15T10:02:32","modified_gmt":"2026-06-15T03:02:32","slug":"harvia-sauna-heater-stones-black-vulcanite","status":"publish","type":"product","link":"https:\/\/www.poolspa.co.th\/en\/products\/sauna\/harvia-sauna-heater-stones-black-vulcanite\/","title":{"rendered":"\u201cHARVIA\u201d Sauna\u00a0Heater Stones Black Vulcanite"},"content":{"rendered":"<p>Black vulcanite sauna heater stone is a small granular, dark grey stone. When wet, the stone shines black making it a great-looking option with selected Harvia heaters. The stone\u2019s volcanic origins date back to ca. 2000 million years. Based on its structure and composition, vulcanite is a good choice for a sauna stone as it is hard and durable.<\/p>\n<ul>\n<li>Stylish vulcanite sauna heater stone. Shines black when wet.<\/li>\n<li>For electric heaters and as a top stone for wood burning heaters<\/li>\n<li>Split-face stones store plenty of heat, making the water thrown onto them vaporise efficiently on the broad fracture surface<\/li>\n<li>The split-face stones are easy to stack and enable good air circulation<\/li>\n<li>Excellent resistance to heat fluctuations and thermal conductivity. Good stone gravity and heat storage capacity.<\/li>\n<li>Stone species: Vulcanite<\/li>\n<li>Stone size 5-10 cm and box weight 20 kg<\/li>\n<li>Does not contain harmful ingredients<\/li>\n<li>Check the right stone size for your heater from the heater manual<\/li>\n<\/ul>\n<p><strong>Color:<\/strong> Black<br \/>\n<strong>Use environment:<\/strong> Interior &#8211; wet area<br \/>\n<strong>Net weight (kg):<\/strong> 20 kg<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Black vulcanite sauna heater stone is a small granular, dark grey stone. When wet, the stone shines black making it a great-looking option with selected Harvia heaters. The stone\u2019s volcanic origins date back to ca. 2000 million years. Based on its structure and composition, vulcanite is a good choice for a sauna stone as it is hard and durable.<\/p>\n<p><strong>Color:<\/strong> Black<br \/>\n<strong>Use environment:<\/strong> Interior &#8211; wet area<br \/>\n<strong>Net weight (kg):<\/strong> 20 kg<\/p>\n","protected":false},"featured_media":20109,"template":"","meta":[],"product_cat":[454],"product_tag":[],"class_list":["post-20115","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-sauna","pa_brand-harvia"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u201cHARVIA\u201d Sauna\u00a0Heater Stones Black Vulcanite - POOL&amp;SPA \u0e1e\u0e39\u0e25\u0e41\u0e2d\u0e19\u0e14\u0e4c\u0e2a\u0e1b\u0e32<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.poolspa.co.th\/en\/products\/sauna\/harvia-sauna-heater-stones-black-vulcanite\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u201cHARVIA\u201d Sauna\u00a0Heater Stones Black Vulcanite - POOL&amp;SPA \u0e1e\u0e39\u0e25\u0e41\u0e2d\u0e19\u0e14\u0e4c\u0e2a\u0e1b\u0e32\" \/>\n<meta property=\"og:description\" content=\"Black vulcanite sauna heater stone is a small granular, dark grey stone. When wet, the stone shines black making it a great-looking option with selected Harvia heaters. The stone\u2019s volcanic origins date back to ca. 2000 million years. Based on its structure and composition, vulcanite is a good choice for a sauna stone as it is hard and durable.  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