{"product_id":"harvia-pro-20-wkpr20m-wood-burning-sauna-stove","title":"Harvia Pro 20 Wood-Burning Sauna Stove (WKPR20M)","description":"\u003csection class=\"product-intro\"\u003e\n\u003cp\u003eThe Harvia Pro 20 (WKPR20M) is a high-output wood-burning sauna stove built for medium-sized sauna rooms. Delivering 24kW of steady, radiant heat with an 88 lb stone capacity, it produces the deep, enveloping warmth that defines a traditional Finnish sauna session. The cast-iron-framed glass door adds a warm, atmospheric glow, while the durable graphite black steel construction ensures long-term reliability. Designed and manufactured in Finland, the Pro 20 is a trusted choice for homeowners and sauna builders who want authentic performance without compromise.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-why-choose\"\u003e\n\u003ch2 class=\"section-heading\"\u003eWhy Customers Choose the Harvia Pro 20\u003c\/h2\u003e\n\u003cul class=\"benefit-list\"\u003e\n\u003cli\u003eAuthentic Finnish engineering with decades of proven sauna heritage\u003c\/li\u003e\n\u003cli\u003e24kW output handles rooms up to 706 cubic feet with consistent heat\u003c\/li\u003e\n\u003cli\u003e88 lb stone capacity for rich, sustained steam (löyly)\u003c\/li\u003e\n\u003cli\u003eCast-iron glass door adds ambiance and lets you monitor the fire\u003c\/li\u003e\n\u003cli\u003eFlexible top and rear flue connections simplify installation planning\u003c\/li\u003e\n\u003cli\u003eAdjustable feet accommodate uneven floors without shimming\u003c\/li\u003e\n\u003cli\u003eGraphite black finish with stainless steel accents for a clean, modern look\u003c\/li\u003e\n\u003cli\u003eBacked by a 2-year limited warranty for consumer use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-highlights\"\u003e\n\u003ch2 class=\"section-heading\"\u003eProduct Highlights\u003c\/h2\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003e24kW Wood-Burning Output\u003c\/h3\u003e\n\u003cp\u003eEngineered for sauna rooms from 283 to 706 cubic feet, the Pro 20 reaches and holds high temperatures efficiently using standard firewood.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003e88 lb Stone Capacity\u003c\/h3\u003e\n\u003cp\u003eA generous stone load retains heat and produces consistent steam when water is poured, supporting a full, satisfying sauna session.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eCast-Iron Framed Glass Door\u003c\/h3\u003e\n\u003cp\u003eThe viewing window lets the fire's glow fill the sauna room, enhancing the traditional atmosphere while allowing easy fire monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eDual Flue Connection Options\u003c\/h3\u003e\n\u003cp\u003eTop and rear flue outlets give installers flexibility to route the chimney based on the sauna's layout and ceiling configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eDurable Graphite Black Steel Construction\u003c\/h3\u003e\n\u003cp\u003eHeavy-gauge steel with stainless steel components resists warping and corrosion, maintaining structural integrity through repeated high-heat cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eDesigned and Made in Finland\u003c\/h3\u003e\n\u003cp\u003eHarvia has manufactured sauna equipment in Finland since 1950. The Pro 20 reflects that tradition of quality craftsmanship and thermal engineering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-specifications\"\u003e\n\u003ch2 class=\"section-heading\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003ePRO 20 (WKPR20M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e24 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Fuel\u003c\/th\u003e\n\u003ctd\u003eWood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Firewood Length\u003c\/th\u003e\n\u003ctd\u003e15 in (39 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFirewood Diameter\u003c\/th\u003e\n\u003ctd\u003e3–6 in (8–15 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom Volume (Min)\u003c\/th\u003e\n\u003ctd\u003e283 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom Volume (Max)\u003c\/th\u003e\n\u003ctd\u003e706 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Room Height\u003c\/th\u003e\n\u003ctd\u003e82 in (209 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Capacity\u003c\/th\u003e\n\u003ctd\u003e88 lbs (sauna stones sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlue Connection\u003c\/th\u003e\n\u003ctd\u003eTop and Rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeater Weight\u003c\/th\u003e\n\u003ctd\u003e132 lbs (60 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight (with stones)\u003c\/th\u003e\n\u003ctd\u003e220 lbs (100 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e16.9 in (43 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDepth\u003c\/th\u003e\n\u003ctd\u003e20 in (51 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e29.9–31.1 in (76–79 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eGraphite Black Steel \/ Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eFinland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2-Year Limited (Consumer) \/ 6-Month Limited (Commercial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003e120-WKPR20M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003eWK200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-in-box\"\u003e\n\u003ch2 class=\"section-heading\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul class=\"inbox-list\"\u003e\n\u003cli\u003eHarvia Pro 20 Wood-Burning Sauna Stove\u003c\/li\u003e\n\u003cli\u003eCast-Iron Framed Glass Door\u003c\/li\u003e\n\u003cli\u003eAsh Box\u003c\/li\u003e\n\u003cli\u003eAdjustable Legs\u003c\/li\u003e\n\u003cli\u003eInstallation and Operation Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Sauna stones are not included and must be purchased separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-ideal-for\"\u003e\n\u003ch2 class=\"section-heading\"\u003eIdeal For\u003c\/h2\u003e\n\u003cul class=\"ideal-list\"\u003e\n\u003cli\u003eResidential sauna rooms from 283 to 706 cubic feet\u003c\/li\u003e\n\u003cli\u003eNew sauna builds and full sauna kit installations\u003c\/li\u003e\n\u003cli\u003eHomeowners seeking a traditional wood-fired sauna experience\u003c\/li\u003e\n\u003cli\u003eSauna builders and contractors sourcing high-output Finnish stoves\u003c\/li\u003e\n\u003cli\u003eCabins, lodges, and off-grid properties without reliable electrical service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-important-info\"\u003e\n\u003ch2 class=\"section-heading\"\u003eImportant Information\u003c\/h2\u003e\n\u003cul class=\"info-list\"\u003e\n\u003cli\u003eProfessional installation by a licensed contractor is strongly recommended. Local building codes and fire safety regulations must be followed.\u003c\/li\u003e\n\u003cli\u003eMaintain required clearances to combustible materials as specified in the installation manual. Do not reduce these clearances.\u003c\/li\u003e\n\u003cli\u003eUse only dry, seasoned hardwood. Do not burn treated lumber, garbage, or accelerants.\u003c\/li\u003e\n\u003cli\u003eSauna stones are not included. Use only stones rated for sauna use; do not substitute with river rocks or unrated materials.\u003c\/li\u003e\n\u003cli\u003eThis stove requires a properly sized and rated chimney system. Refer to the installation manual for flue diameter and height requirements.\u003c\/li\u003e\n\u003cli\u003eNever leave a burning stove unattended. Ensure the fire is fully extinguished before leaving the sauna.\u003c\/li\u003e\n\u003cli\u003eThis product is intended for sauna heating use only. Do not use for space heating, cooking, or any other purpose.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-faq\"\u003e\n\u003ch2 class=\"section-heading\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat size sauna room is the Harvia Pro 20 designed for?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe Pro 20 is rated for sauna rooms between 283 and 706 cubic feet. For best results, match the stove to your room's actual volume. If you're unsure, use a sauna heater sizing calculator or consult a sauna builder before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eAre sauna stones included with the Pro 20?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eNo. Sauna stones are sold separately. The Pro 20 requires approximately 88 lbs of sauna-rated stones. Use only stones specifically designed for sauna use to ensure safe heat retention and steam performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat type of wood should I use?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eUse dry, seasoned hardwood such as birch, oak, or alder. Firewood should be no longer than 15 inches and between 3 and 6 inches in diameter. Avoid treated wood, softwoods with high resin content, or any material not intended for combustion in a sauna stove.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eCan I connect the flue from the top or the back?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. The Pro 20 supports both top and rear flue connections, giving you flexibility to route the chimney based on your sauna's ceiling height and wall configuration. Refer to the installation manual for flue diameter specifications and clearance requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eDoes this stove require professional installation?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eProfessional installation by a licensed contractor is strongly recommended. Wood-burning sauna stoves must comply with local building codes, fire safety regulations, and chimney standards. Improper installation can create fire hazards and may void the warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat warranty does the Harvia Pro 20 carry?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe Pro 20 includes a 2-year limited warranty for consumer use and a 6-month limited warranty for commercial use. Warranty coverage is subject to proper installation and use as described in the product manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhere is the Harvia Pro 20 manufactured?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe Harvia Pro 20 is designed and manufactured in Finland. Harvia has been producing sauna equipment since 1950 and is one of the most recognized sauna brands in the world.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-closing\"\u003e\n\u003cp\u003eThe Harvia Pro 20 is a well-built, high-output wood-burning sauna stove for those who want a genuine Finnish sauna experience at home. If you're ready to move forward or have questions about sizing and installation, our team is here to help you choose the right setup for your space.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003cp class=\"health-disclaimer\" style=\"text-align:center; font-size:0.8em; color:#666; margin-top:2em;\"\u003eSauna use may not be suitable for everyone. Consult a qualified healthcare provider before use if you have a medical condition, are pregnant, or are taking medications. This product is not intended to diagnose, treat, cure, or prevent any disease or medical condition.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What size sauna room is the Harvia Pro 20 designed for?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Pro 20 is rated for sauna rooms between 283 and 706 cubic feet. For best results, match the stove to your room's actual volume. If you're unsure, use a sauna heater sizing calculator or consult a sauna builder before purchasing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are sauna stones included with the Pro 20?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Sauna stones are sold separately. The Pro 20 requires approximately 88 lbs of sauna-rated stones. Use only stones specifically designed for sauna use to ensure safe heat retention and steam performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What type of wood should I use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Use dry, seasoned hardwood such as birch, oak, or alder. Firewood should be no longer than 15 inches and between 3 and 6 inches in diameter. Avoid treated wood, softwoods with high resin content, or any material not intended for combustion in a sauna stove.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I connect the flue from the top or the back?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Pro 20 supports both top and rear flue connections, giving you flexibility to route the chimney based on your sauna's ceiling height and wall configuration. Refer to the installation manual for flue diameter specifications and clearance requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does this stove require professional installation?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Professional installation by a licensed contractor is strongly recommended. Wood-burning sauna stoves must comply with local building codes, fire safety regulations, and chimney standards. Improper installation can create fire hazards and may void the warranty.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What warranty does the Harvia Pro 20 carry?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Pro 20 includes a 2-year limited warranty for consumer use and a 6-month limited warranty for commercial use. 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Harvia has been producing sauna equipment since 1950 and is one of the most recognized sauna brands in the world.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Finnish Sauna Builders","offers":[{"title":"Default Title","offer_id":50263958651119,"sku":"120-WKPR20M","price":1513.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/7568\/4079\/files\/Harvia_Pro_20_WKPR20M_Wood_Burning_Sauna_Stove_-_Finnish_Sauna_Builders.webp?v=1785267060","url":"https:\/\/intentionalwellnesslab.com\/products\/harvia-pro-20-wkpr20m-wood-burning-sauna-stove","provider":"Intentional Wellness Lab","version":"1.0","type":"link"}