{"product_id":"harvia-20-es-pro-wood-burning-sauna-stove-with-integrated-water-tank","title":"Harvia 20 ES Pro Wood-Burning Sauna Stove with Integrated Water Tank","description":"\u003csection class=\"product-intro\"\u003e\n\u003cp\u003eThe Harvia 20 ES Pro is a wood-burning sauna stove designed for cottage and home saunas that want the authentic experience of a wood-fired session. A fixed 20-liter front-mounted water tank heats water as the stove warms the room, so hot water is ready when you need it. The Pro model features a graphite black outer casing, stainless steel front panel, and a large glass door that lets you watch the fire during your session. With a generous stone compartment and robust construction, the 20 ES Pro delivers reliable, traditional sauna performance.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-why-choose\"\u003e\n\u003ch2 class=\"section-heading\"\u003eWhy Customers Choose This Stove\u003c\/h2\u003e\n\u003cul class=\"benefit-list\"\u003e\n\u003cli\u003eIntegrated 20-liter water tank heats water simultaneously with the sauna room\u003c\/li\u003e\n\u003cli\u003eLarge glass door provides a view of the fire during sessions\u003c\/li\u003e\n\u003cli\u003eGraphite black casing with stainless steel front for a premium, durable finish\u003c\/li\u003e\n\u003cli\u003eGenerous stone compartment for soft, even steam generation\u003c\/li\u003e\n\u003cli\u003eNo electricity required — fully wood-fired for off-grid and cottage use\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured in Finland by Harvia\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\"\u003eIntegrated 20-Liter Water Tank\u003c\/h3\u003e\n\u003cp\u003eThe fixed front-mounted water tank holds 20 liters and heats water passively as the stove operates. A side tap allows easy water access from either side of the stove.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eLarge Glass Door\u003c\/h3\u003e\n\u003cp\u003eThe robust glass door on the Pro model allows bathers to view the fire during sessions. It adds a visual element to the sauna experience while maintaining heat efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eGraphite Black and Stainless Steel Finish\u003c\/h3\u003e\n\u003cp\u003eThe outer casing is finished in graphite black with a stainless steel front panel. This combination is built to withstand the high-heat conditions of regular sauna use.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eLarge Stone Compartment\u003c\/h3\u003e\n\u003cp\u003eThe stove accommodates a substantial volume of sauna stones (minimum 88 lbs required), supporting traditional löyly and consistent steam throughout the session.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eWood-Fired, No Electricity Required\u003c\/h3\u003e\n\u003cp\u003eThe 20 ES Pro operates entirely on wood fuel, making it well-suited for off-grid cabins, cottages, and sauna rooms without electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eFinnish Engineering\u003c\/h3\u003e\n\u003cp\u003eHarvia has manufactured sauna equipment in Finland since 1950. The 20 ES Pro is built to the same standards of durability and performance as the broader Harvia product line.\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\u003eHarvia 20 ES Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel Type\u003c\/th\u003e\n\u003ctd\u003eWood-Burning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Tank Capacity\u003c\/th\u003e\n\u003ctd\u003e20 liters (integrated, front-mounted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Tank Tap\u003c\/th\u003e\n\u003ctd\u003eSide-mounted, configurable left or right\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Stone Load\u003c\/th\u003e\n\u003ctd\u003e88 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Casing\u003c\/th\u003e\n\u003ctd\u003eGraphite black with stainless steel front\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDoor Type\u003c\/th\u003e\n\u003ctd\u003eGlass door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectricity Required\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChimney Connection\u003c\/th\u003e\n\u003ctd\u003eRequired (see chimney installation manual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eFinland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eWKPR20RSM\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 20 ES Pro Wood-Burning Sauna Stove\u003c\/li\u003e\n\u003cli\u003eIntegrated 20-Liter Water Tank with Side Tap\u003c\/li\u003e\n\u003cli\u003eOperations and Installation Manual\u003c\/li\u003e\n\u003c\/ul\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\u003eCottage and cabin saunas where wood-fired heating is preferred\u003c\/li\u003e\n\u003cli\u003eOff-grid sauna installations without access to electrical infrastructure\u003c\/li\u003e\n\u003cli\u003eUsers who want an integrated hot water supply during sauna sessions\u003c\/li\u003e\n\u003cli\u003eSauna rooms where a traditional, authentic wood-burning experience is the priority\u003c\/li\u003e\n\u003cli\u003eHomeowners seeking a durable, long-term sauna heating solution with minimal mechanical components\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\u003eA properly installed chimney system is required for safe operation. Refer to the chimney installation manual included with this product and consult a qualified installer.\u003c\/li\u003e\n\u003cli\u003eA minimum of 88 lbs of sauna stones must be loaded before use. Sauna stones are sold separately. Use only stones rated for sauna use — do not use river rocks or decorative stones.\u003c\/li\u003e\n\u003cli\u003eMaintain required clearance distances from combustible walls, ceilings, and materials as specified in the installation manual.\u003c\/li\u003e\n\u003cli\u003eThis stove requires a dedicated, non-combustible floor protection area beneath and around the unit. Consult local building codes for specific requirements.\u003c\/li\u003e\n\u003cli\u003eNever leave a wood-burning stove unattended while in operation.\u003c\/li\u003e\n\u003cli\u003eUse only dry, seasoned firewood. Do not burn treated wood, garbage, or accelerants.\u003c\/li\u003e\n\u003cli\u003eReview the full operations and chimney installation manuals before beginning installation or first use.\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\"\u003eDoes the 20 ES Pro require electricity to operate?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eNo. The Harvia 20 ES Pro is a fully wood-burning stove and does not require any electrical connection. This makes it suitable for off-grid cabins, cottages, and sauna rooms without electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat does the integrated water tank do?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe fixed 20-liter water tank is mounted on the front of the stove and heats water passively as the stove operates. By the time the sauna room is ready for use, the water in the tank is also heated. A side tap provides easy access to the hot water.\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?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eSauna stones are not included. A minimum of 88 lbs of sauna stones is required before the stove can be used. Use only stones rated for sauna use — do not use river rocks or decorative stones, as they can crack under high heat.\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 a chimney?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. A properly installed chimney system is required for safe operation of any wood-burning sauna stove. A chimney installation manual is available for reference. Consult a qualified installer to ensure your chimney meets local building and fire codes.\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 only dry, seasoned hardwood firewood. Do not burn treated or painted wood, garbage, cardboard, or any accelerants. Burning unsuitable materials can damage the stove and create safety hazards.\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 pour water over the stones on this stove?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. The large stone compartment on the 20 ES Pro supports traditional löyly — pouring small amounts of water over heated stones to produce steam. Follow the guidelines in the operations manual for safe stone use and water quantities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat is the difference between the standard and Pro model?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe Pro model features a graphite black outer casing, a stainless steel front panel, and a large glass door that allows you to view the fire during your session. These features distinguish it from the standard model in both appearance and finish quality.\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 20 ES Pro is a dependable wood-burning sauna stove for cottage and home sauna rooms that prioritize a traditional, authentic experience. If you have questions about sizing, chimney requirements, or installation, contact us before ordering — we're here to help you get the right stove for your space.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003cp class=\"health-disclaimer\" style=\"text-align:center; font-size:0.75rem; color:#888; margin-top:2rem;\"\u003eSauna use is a personal wellness practice. Consult a qualified healthcare provider before use if you have any medical conditions or concerns.\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\": \"Does the 20 ES Pro require electricity to operate?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The Harvia 20 ES Pro is a fully wood-burning stove and does not require any electrical connection. 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The large stone compartment on the 20 ES Pro supports traditional l\\u00f6yly \\u2014 pouring small amounts of water over heated stones to produce steam. 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