{"product_id":"harvia-chimney-extension-package","title":"Harvia Chimney Extension Package","description":"\u003cp\u003eExtend your Harvia wood-stove chimney with the \u003cstrong\u003eWHP1000 + WHP500M Chimney Extension Package\u003c\/strong\u003e. This stainless-steel, double-wall insulated set adds \u003cstrong\u003e1.5 meters\u003c\/strong\u003e of vertical chimney and locks securely into place—ideal for detached saunas or high-ceiling installs that require extra stack height for proper draft and compliance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular extensions:\u003c\/strong\u003e 1000 mm + 500 mm stainless steel sections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-wall insulated:\u003c\/strong\u003e Mineral wool core for high-temp safety and performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure joints:\u003c\/strong\u003e Groove-and-band connections resist thermal movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified \u0026amp; tested:\u003c\/strong\u003e CE-marked, soot-fire resistant, and freeze-thaw tested\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVertical install only:\u003c\/strong\u003e Stackable; self-supporting outdoors up to 2 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinnish quality:\u003c\/strong\u003e Designed, engineered, and made in Finland\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2-Year Consumer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRequired Components\u003c\/h2\u003e\n\u003cp\u003eThe following items are required for proper installation and safe operation (\u003cem\u003esold separately\u003c\/em\u003e):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase chimney kit\u003c\/strong\u003e — e.g., Harvia WHP1500 or WHP1500M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof flashing \/ rain protection\u003c\/strong\u003e matched to roof pitch and material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport brackets \/ guy wires\u003c\/strong\u003e if the stack is exposed or exceeds self-support limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × \u003cstrong\u003e1000 mm\u003c\/strong\u003e stainless steel chimney extension\u003c\/li\u003e\n\u003cli\u003e1 × \u003cstrong\u003e500 mm\u003c\/strong\u003e stainless steel chimney extension\u003c\/li\u003e\n\u003cli\u003e2 × locking bands for secure connections\u003c\/li\u003e\n\u003cli\u003eInstallation \u0026amp; Operation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWHP1000 + WHP500M (Extension Sections)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTotal Extension Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1500 mm (59 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStainless steel, double-wall with mineral wool insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSelf-Supporting Height (Outdoors)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUp to 2 m above last support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Unsupported Height (Indoors)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUp to 3 m total (supports required above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWind Load (Max Support Gap)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSupports ≤ 3 m (9.8 ft) apart; ≤ 2 m (6.5 ft) above last support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e220 mm (8.66 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCertification \/ Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCE-marked • Finland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background-color: #e6ffea; padding: 15px; border-radius: 8px; margin-top: 20px;\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Follow the “3-2-10” chimney rule—top is at least 3′ above the roof penetration and 2′ higher than anything within 10′. If more height is needed for draft or code, add additional Harvia extensions to this package.\u003c\/div\u003e","brand":"Your Spa Pool","offers":[{"title":"Default Title","offer_id":53834080813389,"sku":null,"price":829.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/1990\/9197\/files\/harvia-chimney-extension-package-complete-installation-parts.png?v=1777941671","url":"https:\/\/yourspapool.com\/products\/harvia-chimney-extension-package","provider":"Your Spa Pool","version":"1.0","type":"link"}