{"product_id":"harvia-whp1000-chimney-extension","title":"Harvia WHP1000 Chimney Extension 1000 mm Stainless","description":"\u003cp\u003eHarvia WHP1000 is the 1000 mm \/ about 39-3\/8\" insulated extension for the Harvia WHP1500 steel chimney. Stainless steel. You only need this if the 1.5 m kit is short for the roof. Harvia’s joint screws the sections together so heat expansion does not walk the pipe.\u003c\/p\u003e\u003ch3\u003eHow it is used\u003c\/h3\u003e\u003cp\u003eStack on the WHP1500 insulated chimney, same stainless family. Harvia: indoor unsupported height up to 3 m; outdoor self-supported height 2 m; total chimney not over 5.0 m. The installer sets bracing from the manual — we do not guess wind load.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne WHP1000 insulated chimney extension (1000 mm \/ about 39-3\/8\")\u003c\/li\u003e\n\u003cli\u003eFor use only with Harvia WHP1500 steel chimney (Harvia: may only be installed with WHP1500 \/ WHP1500M)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Harvia (Finland)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WHP1000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1000 mm \/ about 39-3\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter casing:\u003c\/strong\u003e 220 mm \/ about 8.66\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Harvia WHP1500 steel chimney only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/pim.harvia.com\/rockon-images\/CIP\/asset\/download\/3c5b6375-efcf-42bf-86ea-4ff1ab4796a9\/1455\" target=\"_blank\" rel=\"noopener\"\u003eHarvia WHP500 \/ WHP1000 chimney extension manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eCode, UL, and who decides the flue\u003c\/h3\u003e\u003cp\u003eA licensed chimney installer and the authority having jurisdiction decide the flue for your building. We sell the manufacturer’s European steel chimney system named on this page. Harvia prints CE on the pages we cite. Those pages do not print a UL listing. We will not invent one. This is not a US 6-inch Class A kit.\u003c\/p\u003e\u003cp\u003eHarvia WHP1000. Extension only — not a complete flue. Still not UL, still not 6-inch Class A.\u003c\/p\u003e\u003cp\u003eEmail hello@selfcaresaunas.com with roof type (flat vs pitched), ceiling height, and whether the stove loads from inside or through the wall — before you order pipe.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs this a US 6-inch Class A chimney?\u003c\/strong\u003e\u003cbr\u003eNo. Harvia’s WHP steel chimney is a European modular flue: inner smoke pipe 115 mm (about 4.53\"), outer casing 220 mm (about 8.66\"). Harvia.com prints CE. We do not invent UL. Your installer and local code decide whether this system is legal on your building.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndoor house chimney?\u003c\/strong\u003e\u003cbr\u003eHarvia’s own support page for WHP1500: suitable only for standalone outdoor sauna buildings — not as the chimney for a fireplace inside a house or vacation home. If the sauna is inside a dwelling, stop and email hello@selfcaresaunas.com.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include a damper?\u003c\/strong\u003e\u003cbr\u003eNo. Harvia names WHP270SP (stainless) and WHP270SPM (black) as the matching dampers, sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVertical only?\u003c\/strong\u003e\u003cbr\u003eHarvia’s WHP steel chimney manual: vertical only. Total insulated height max 5.0 m with extensions. Indoor unsupported and outdoor self-supported heights are in that manual.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need the full kit first?\u003c\/strong\u003e\u003cbr\u003eYes. Harvia: extensions mount only with the WHP1500 \/ WHP1500M steel chimney. Match stainless with stainless, black with black.\u003c\/p\u003e\u003cp\u003eQuestions? Email hello@selfcaresaunas.com or email hello@selfcaresaunas.com.\u003c\/p\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":44074534600763,"sku":"104-WHP1000","price":614.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/3279\/0075\/files\/1268.jpg?v=1788059545","url":"https:\/\/selfcaresaunas.com\/products\/harvia-whp1000-chimney-extension","provider":"Self Care Saunas","version":"1.0","type":"link"}