{"product_id":"harvia-50-40kw-wood-burning-sauna-stove","title":"Harvia 50 40 kW Wood-Burning Sauna Stove","description":"\u003cp style=\"margin-bottom: 16px;\"\u003e\u003cstrong\u003eThe Harvia 50 is a 40 kW wood-burning sauna stove for rooms of 706–1,766 cubic feet. It takes 264 lb of 10-15cm sauna stones (sold separately), needs no electrical supply, and requires a code-compliant chimney.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe Harvia 50 is the largest wood-burning stove in this catalog: 40 kW, a 264 lb stone charge and a shipping weight north of 400 lb. It is specified for public saunas, lakeside community saunas and very large private rooms from 706 up to 1,766 cu ft.\u003c\/p\u003e\n\u003cul style=\"margin-top: 8px; padding-left: 18px;\"\u003e\n\u003cli\u003eEven heat in a large sauna\u003c\/li\u003e\n\u003cli\u003eDesigned for large groups\u003c\/li\u003e\n\u003cli\u003e40 kW output — the largest wood stove in the range\u003c\/li\u003e\n\u003cli\u003eCovers 706–1,766 cu ft\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge steel construction for public-sauna duty cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; margin-top: 8px;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; border: 1px solid #ddd; border-radius: 4px; padding: 12px;\"\u003e\n\u003cstrong\u003eIn the Box\u003c\/strong\u003e\u003cbr\u003eSauna Stove, Installation and Operation Manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eRequired to Operate\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThese are not included. You need them before the sauna will run.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; margin-top: 8px;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; border: 1px solid #ddd; border-radius: 4px; padding: 12px;\"\u003e\n\u003cstrong\u003eSauna Stones\u003c\/strong\u003e\u003cbr\u003e264 lb — Harvia specifies 6 × 44 lb boxes of Harvia AC3020. Never run the unit empty.\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 220px; border: 1px solid #ddd; border-radius: 4px; padding: 12px;\"\u003e\n\u003cstrong\u003eChimney\u003c\/strong\u003e\u003cbr\u003eA listed, code-compliant chimney system, plus floor protection where the manual or local code requires it.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Specifications\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\u003eHarvia Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWK500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e40 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSauna Room Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e706–1,766 adjusted cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStone Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e264 lbs (119.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRecommended Stones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHarvia AC3020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eColor \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eGraphite Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (W × D × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20\" (510mm) × 28.3\" (718mm) × 41.3\" (1049mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight (Empty)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e428.1 lbs (194.2 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight Loaded with Stones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eapprox. 692 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFloor Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCE, EAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2 years (consumer use, +1 year if registered with Harvia); 6 months (commercial use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShips\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLTL freight, curbside\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMade In\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFinland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 0.9em; color: #666; margin-top: 6px;\"\u003eHarvia lists this model with CE, EAC marks. These are the European and Eurasian conformity marks, not a UL or ETL listing for North America — confirm requirements with your building department and insurer.\u003c\/p\u003e\n\u003ch2\u003eSizing\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003e\u003cstrong\u003eThe Harvia 50 is rated for 706–1,766 adjusted cubic feet.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eAdjusted cubic feet = width × depth × height in feet, plus 45 cu ft for every square foot of glass, tile, concrete or stone, plus 15 cu ft for every square foot of exposed log wall. A 6 × 7 ft room with a 7 ft ceiling is 294 raw cu ft — add a full-glass door and it becomes 834. Always size to the adjusted number.\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px;\"\u003e\u003ca href=\"\/pages\/sauna-heater-size-calculator\"\u003eWork out your room with the sauna heater size calculator\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eInstallation \u0026amp; Use Notes\u003c\/h2\u003e\n\u003cul style=\"margin-top: 8px; padding-left: 18px;\"\u003e\n\u003cli\u003eConfirm the flue diameter and whether your chimney connects top or rear before you order chimney components. This is the most common ordering mistake on wood sauna builds.\u003c\/li\u003e\n\u003cli\u003eHarvia wood stoves use 115 mm (4.5 in) European flue pipe. A North American 6 in chimney needs the Harvia WZ115155 adapter.\u003c\/li\u003e\n\u003cli\u003eA solid-fuel appliance usually needs a permit and an inspection in the US, and your insurer will normally want to see the sign-off.\u003c\/li\u003e\n\u003cli\u003eBurn the stove outdoors or with the room ventilated for the first firing to cure the paint. Load stones loosely by hand and re-stack them once a year.\u003c\/li\u003e\n\u003cli\u003eThis is an LTL freight item. It arrives curbside on a pallet and the carrier calls to book a window — have two people and a pallet jack or dolly ready, and note any damage on the delivery receipt before you sign.\u003c\/li\u003e\n\u003cli\u003eStones ship separately on their own freight because of the weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003ch3\u003eWill the Harvia 50 connect to a US chimney?\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eNot directly. Harvia wood stoves are built with 115 mm (4.5 in) European flue pipe, so a North American 6 in system needs the Harvia WZ115155 adapter. Confirm your flue diameter and whether the connection is top or rear before ordering.\u003c\/p\u003e\n\u003ch3\u003eCan the Harvia 50 sit on a wooden floor?\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eOnly with the floor protection the installation manual specifies, and only at the clearances it gives. A Harvia protective shield reduces those clearances, but only by the stated amount and only when it is the shield listed for this stove.\u003c\/p\u003e\n\u003ch3\u003eHow long does the Harvia 50 take to heat up?\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eHarvia does not publish a figure. As a rule of thumb a correctly sized, well-insulated room with a full stone charge is ready 45 to 75 minutes after lighting, and the stones keep giving heat back long after the fire dies down.\u003c\/p\u003e\n\u003ch2\u003eDownloads\u003c\/h2\u003e\n\u003cdiv style=\"padding: 6px 0; display: flex; flex-direction: column; gap: 8px;\"\u003e\n\u003cdiv style=\"display: flex; align-items: center;\"\u003e\n\u003cimg style=\"width: 20px; height: 20px; margin-right: 8px;\" alt=\"Download Icon\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Icons-10.png?v=1753874853\"\u003e \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Pk_50_FISVENDERUETCSPL_Y05-0128_web_0925.pdf?v=1786646328\" target=\"_blank\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center;\"\u003e\n\u003cimg style=\"width: 20px; height: 20px; margin-right: 8px;\" alt=\"Download Icon\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Icons-10.png?v=1753874853\"\u003e \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/datasheet_WK500_en_202506281047.pdf?v=1786646329\" target=\"_blank\"\u003eTechnical Data Sheet\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center;\"\u003e\n\u003cimg style=\"width: 20px; height: 20px; margin-right: 8px;\" alt=\"Download Icon\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Icons-10.png?v=1753874853\"\u003e \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Harvia-Warranty-11-2025.pdf?v=1786565109\" target=\"_blank\"\u003eWarranty Statement\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":63955122618739,"sku":"WK500","price":7587.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/2666\/3539\/files\/Harvia_50_WK500_p1.webp?v=1786646394","url":"https:\/\/allseasonpatio.com\/products\/harvia-50-40kw-wood-burning-sauna-stove","provider":"All Season Patio Company","version":"1.0","type":"link"}