{"product_id":"harvia-50-wood-burning-stove","title":"HARVIA 50 Wood Burning Stove - WK500","description":"\u003ch2\u003eHARVIA 50 Wood Burning Stove - WK500\u003c\/h2\u003e\n\u003cp\u003eThe Harvia 50 SL black is a powerhouse designed for expansive sauna rooms ranging from 706 to 1,766 square feet. With a generous capacity for stones, it provides consistent heat and exceptional steam output, ensuring a comfortable and invigorating experience even in larger spaces.\u003c\/p\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69f0adf6-5d68-83e8-9ab6-edb81290ee21-0\" data-testid=\"conversation-turn-14\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"240b2bf8-8a43-40a6-8a81-03f1b8fa27e5\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cul data-start=\"27\" data-end=\"1655\"\u003e\n\u003cli data-section-id=\"5yzav9\" data-start=\"27\" data-end=\"377\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"80\"\u003eMassive professional-grade output (40 kW class)\u003c\/strong\u003e\u003cbr data-start=\"80\" data-end=\"83\"\u003eThe Harvia 50 (WK500) is widely recognized as a \u003cstrong data-start=\"133\" data-end=\"181\" data-is-only-node=\"\"\u003etop-tier commercial wood-burning sauna stove\u003c\/strong\u003e, designed for very large sauna rooms (approx. 20–50 m³). It delivers extremely fast heat-up and powerful, stable temperatures even in demanding public use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vu3yok\" data-start=\"379\" data-end=\"628\"\u003e\n\u003cstrong data-start=\"381\" data-end=\"423\"\u003eBuilt for public \u0026amp; high-traffic saunas\u003c\/strong\u003e\u003cbr data-start=\"423\" data-end=\"426\"\u003eExperts consistently classify it as a \u003cstrong data-start=\"466\" data-end=\"500\" data-is-only-node=\"\"\u003e“king of public sauna heaters”\u003c\/strong\u003e, ideal for camps, sports centers, spa facilities, and large group bathing environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"156t4n4\" data-start=\"630\" data-end=\"864\"\u003e\n\u003cstrong data-start=\"632\" data-end=\"680\"\u003eExceptional stone capacity for intense löyly\u003c\/strong\u003e\u003cbr data-start=\"680\" data-end=\"683\"\u003eWith ~120 kg of stones, it produces \u003cstrong data-start=\"721\" data-end=\"768\" data-is-only-node=\"\"\u003edeep, continuous, high-volume steam (löyly)\u003c\/strong\u003e—maintaining heat consistency even in very large spaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ftkhzp\" data-start=\"866\" data-end=\"1078\"\u003e\n\u003cstrong data-start=\"868\" data-end=\"909\"\u003eExtreme durability for continuous use\u003c\/strong\u003e\u003cbr data-start=\"909\" data-end=\"912\"\u003eHeavy steel construction and industrial-grade build quality make it suitable for \u003cstrong data-start=\"995\" data-end=\"1040\" data-is-only-node=\"\"\u003elong operating cycles and frequent firing\u003c\/strong\u003e, where residential stoves would fail.\u003c\/li\u003e\n\u003cli data-section-id=\"1tmnd45\" data-start=\"1080\" data-end=\"1248\"\u003e\n\u003cstrong data-start=\"1082\" data-end=\"1123\"\u003eEngineered for even heat distribution\u003c\/strong\u003e\u003cbr data-start=\"1123\" data-end=\"1126\"\u003eThe large stone mass and combustion design ensure \u003cstrong data-start=\"1178\" data-end=\"1201\" data-is-only-node=\"\"\u003euniform heat spread\u003c\/strong\u003e, reducing cold zones in oversized sauna rooms.\u003c\/li\u003e\n\u003cli data-section-id=\"9q9vko\" data-start=\"1250\" data-end=\"1454\"\u003e\n\u003cstrong data-start=\"1252\" data-end=\"1302\"\u003eClassic Finnish wood-fired experience at scale\u003c\/strong\u003e\u003cbr data-start=\"1302\" data-end=\"1305\"\u003eExperts highlight that it preserves the \u003cstrong data-start=\"1347\" data-end=\"1379\" data-is-only-node=\"\"\u003etraditional sauna atmosphere\u003c\/strong\u003e, but scaled for large groups without losing steam quality or authenticity.\u003c\/li\u003e\n\u003cli data-section-id=\"la74ra\" data-start=\"1456\" data-end=\"1655\"\u003e\n\u003cstrong data-start=\"1458\" data-end=\"1509\"\u003eBest suited for professional installations only\u003c\/strong\u003e\u003cbr data-start=\"1509\" data-end=\"1512\"\u003eRecommended for \u003cstrong data-start=\"1530\" data-end=\"1583\" data-is-only-node=\"\"\u003ecommercial facilities or very large custom saunas\u003c\/strong\u003e, not typical home use due to its size, fuel demand, and heat intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003ch5\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"53\" data-end=\"262\"\u003e\u003cstrong data-start=\"53\" data-end=\"99\"\u003eQ: What is the Harvia 50 (WK500) used for?\u003c\/strong\u003e\u003cbr data-start=\"99\" data-end=\"102\"\u003eA: It is a high-capacity wood-burning sauna stove designed for very large sauna rooms and commercial facilities such as public saunas, spas, and sports centers.\u003c\/p\u003e\n\u003cp data-start=\"264\" data-end=\"507\"\u003e\u003cstrong data-start=\"264\" data-end=\"305\"\u003eQ: What makes this model so powerful?\u003c\/strong\u003e\u003cbr data-start=\"305\" data-end=\"308\"\u003eA: It delivers approximately \u003cstrong data-start=\"337\" data-end=\"361\"\u003e40 kW of heat output\u003c\/strong\u003e and holds a very large amount of sauna stones, ensuring strong and even heat distribution for large groups. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"509\" data-end=\"685\"\u003e\u003cstrong data-start=\"509\" data-end=\"556\"\u003eQ: What sauna room size is it suitable for?\u003c\/strong\u003e\u003cbr data-start=\"556\" data-end=\"559\"\u003eA: It is designed for extremely large sauna spaces of about \u003cstrong data-start=\"619\" data-end=\"646\"\u003e20–50 m³ (706–1766 ft³)\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"687\" data-end=\"864\"\u003e\u003cstrong data-start=\"687\" data-end=\"735\"\u003eQ: Is this a residential or commercial unit?\u003c\/strong\u003e\u003cbr data-start=\"735\" data-end=\"738\"\u003eA: It is primarily a \u003cstrong data-start=\"759\" data-end=\"791\"\u003ecommercial-grade sauna stove\u003c\/strong\u003e, used in public saunas, wellness centers, and high-traffic environments.\u003c\/p\u003e\n\u003cp data-start=\"866\" data-end=\"1055\"\u003e\u003cstrong data-start=\"866\" data-end=\"919\"\u003eQ: What type of sauna experience does it provide?\u003c\/strong\u003e\u003cbr data-start=\"919\" data-end=\"922\"\u003eA: It delivers a very traditional Finnish sauna experience with strong, consistent heat and rich steam (löyly), even in large spaces.\u003c\/p\u003e\n\u003cp data-start=\"1057\" data-end=\"1201\"\u003e\u003cstrong data-start=\"1057\" data-end=\"1095\"\u003eQ: What materials is it made from?\u003c\/strong\u003e\u003cbr data-start=\"1095\" data-end=\"1098\"\u003eA: It features a durable steel body with a heat-resistant finish designed for long-term heavy-duty use.\u003c\/p\u003e\n\u003cp data-start=\"1203\" data-end=\"1384\"\u003e\u003cstrong data-start=\"1203\" data-end=\"1247\"\u003eQ: Does it require special installation?\u003c\/strong\u003e\u003cbr data-start=\"1247\" data-end=\"1250\"\u003eA: Yes, it requires a proper chimney system, correct safety clearances, and professional installation due to its size and heat output.\u003c\/p\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"fd4sft\" data-start=\"67\" data-end=\"223\"\u003e\n\u003cstrong data-start=\"69\" data-end=\"94\"\u003eClean ash frequently:\u003c\/strong\u003e Remove ash after every use to maintain strong airflow and stable combustion performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hsy55y\" data-start=\"224\" data-end=\"382\"\u003e\n\u003cstrong data-start=\"226\" data-end=\"258\"\u003eUse only dry, seasoned wood:\u003c\/strong\u003e Ensures efficient burning, higher heat output, and reduced soot buildup in chimney. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"163dyyi\" data-start=\"383\" data-end=\"535\"\u003e\n\u003cstrong data-start=\"385\" data-end=\"409\"\u003eChimney maintenance:\u003c\/strong\u003e Inspect and clean flue regularly to prevent creosote buildup and maintain safe draft. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12hn7ad\" data-start=\"536\" data-end=\"713\"\u003e\n\u003cstrong data-start=\"538\" data-end=\"559\"\u003eStone inspection:\u003c\/strong\u003e Check sauna stones annually; replace cracked stones and keep proper loose stacking for airflow and steam quality. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gehhlu\" data-start=\"714\" data-end=\"859\"\u003e\n\u003cstrong data-start=\"716\" data-end=\"742\"\u003eAirflow control check:\u003c\/strong\u003e Ensure air intake and ash compartment are not blocked for proper combustion. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14y7aja\" data-start=\"860\" data-end=\"1018\"\u003e\n\u003cstrong data-start=\"862\" data-end=\"883\"\u003eAvoid overfiring:\u003c\/strong\u003e Do not overload wood—excess heat can overheat stove and chimney, reducing lifespan and safety. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bfzcjy\" data-start=\"1019\" data-end=\"1142\"\u003e\n\u003cstrong data-start=\"1021\" data-end=\"1039\"\u003eExterior care:\u003c\/strong\u003e Wipe steel surfaces and check for rust or heat wear, especially in high-moisture sauna environments.\u003c\/li\u003e\n\u003cli data-section-id=\"1xxcqih\" data-start=\"1143\" data-end=\"1299\"\u003e\n\u003cstrong data-start=\"1145\" data-end=\"1174\"\u003eSafe water use on stones:\u003c\/strong\u003e Use clean water only; avoid salt or mineral-heavy water that can corrode components. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qrm8my\" data-start=\"1300\" data-end=\"1434\"\u003e\n\u003cstrong data-start=\"1302\" data-end=\"1337\"\u003eAnnual professional inspection:\u003c\/strong\u003e Check firebox, chimney connection, and safety clearances for long-term commercial reliability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":45598570840255,"sku":"WK500","price":7207.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/WK500_1.png?v=1777379092","url":"https:\/\/backyardprovider.com\/products\/harvia-50-wood-burning-stove","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}