{"product_id":"harvia-whm25-225-250mm-sauna-chimney-vapour-barrier","title":"Harvia WHM25 225-250mm Vapour Barrier for Sauna Chimneys","description":"\u003ch2\u003eProtect Your Sauna Structure from Moisture and Structural Damage\u003c\/h2\u003e\n\u003cp\u003eEnsure a professional, code-compliant sealing job around your chimney system with the official \u003cstrong\u003eHarvia Vapour Barrier WHM25 (225-250mm)\u003c\/strong\u003e. Specially designed for multi-layered sauna ceilings and walls, this essential component prevents water vapor and condensation from escaping the hot room and leaking into your building's structural insulation—safeguarding against rot, mold, and costly moisture decay.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical Moisture Defense:\u003c\/strong\u003e Creates a perfectly tight, dependable seal around the chimney pass-through point to block intensive steam and high-humidity vapor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Heat-Resistant Seal:\u003c\/strong\u003e Fabricated to withstand high thermal loads directly near wood-burning stove chimney components without melting, degrades, or off-gassing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Compatibility:\u003c\/strong\u003e Perfectly tailored to accommodate larger insulated chimney and smoke pipe segments with an outer diameter ranging from 225mm to 250mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold; width: 30%;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHarvia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel \/ MPN\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWHM25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eDiameter Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e225 mm - 250 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHeat-Resistant Silicone Rubber Compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eChimney Insulation Flange \/ Vapour Barrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eEnvironment\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTraditional Wood-Burning Saunas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Finnish Sauna Builders","offers":[{"title":"Default Title","offer_id":59707034075217,"sku":"WHM25","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/5869\/3457\/files\/FknOktJorXpWBpIP3GP9.jpg?v=1782610445","url":"https:\/\/renewalcove.com\/products\/harvia-whm25-225-250mm-sauna-chimney-vapour-barrier","provider":"Renewal Cove","version":"1.0","type":"link"}