{"product_id":"harvia-wp500-cauldron-50l-wood-burning-sauna-water-heater","title":"Harvia WP500 Cauldron 50L Wood-Burning Sauna Water Heater","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003c!-- Benefit-Led Intro --\u003e\n\u003cdiv class=\"section section-intro\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHarvia WP500\u003c\/strong\u003e is a 50-litre wood-burning sauna cauldron designed to heat large volumes of water for traditional Finnish cottage sauna use. Its stainless steel inner vessel is removable for easy cleaning, and the fire chamber is positioned directly beneath the cauldron for efficient, even heat transfer. A replaceable fire chamber extends the product's service life, while the stainless steel outer casing provides durability in humid sauna environments. For those who want a self-contained, wood-fired water heating solution that fits naturally into a traditional sauna setup, the WP500 is a purpose-built option from Harvia.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- Why Customers Choose --\u003e\n\u003cdiv class=\"section section-why-choose\"\u003e\n\u003ch2 class=\"section-heading\"\u003eWhy Customers Choose This Cauldron\u003c\/h2\u003e\n\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e50-litre capacity for heating large volumes of water in one session\u003c\/li\u003e\n\u003cli\u003eRemovable stainless steel inner vessel for straightforward cleaning\u003c\/li\u003e\n\u003cli\u003eFire chamber positioned directly under the cauldron for efficient heat transfer\u003c\/li\u003e\n\u003cli\u003eReplaceable fire chamber for long-term serviceability\u003c\/li\u003e\n\u003cli\u003eStainless steel outer casing built for humid sauna environments\u003c\/li\u003e\n\u003cli\u003eNo electricity required — fully wood-fired operation\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured by Harvia in Finland\u003c\/li\u003e\n\u003cli\u003eAdds a traditional Finnish cottage sauna atmosphere\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c!-- Product Highlights --\u003e\n\u003cdiv class=\"section section-highlights\"\u003e\n\u003ch2 class=\"section-heading\"\u003eProduct Highlights\u003c\/h2\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003e50-Litre Water Capacity\u003c\/h3\u003e\n\u003cp\u003eThe WP500 holds 50 litres of water, making it well-suited for extended sauna sessions or settings where a larger hot water supply is needed. It is designed for cottage and residential sauna environments where water volume matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eRemovable Stainless Steel Inner Vessel\u003c\/h3\u003e\n\u003cp\u003eThe inner cauldron is made from durable stainless steel and can be fully removed from the outer casing for cleaning. This design makes routine maintenance straightforward without requiring disassembly of the entire unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eDirect-Fire Heat Transfer\u003c\/h3\u003e\n\u003cp\u003eThe fire chamber is structured so that heat is distributed directly beneath the inner cauldron, promoting efficient and consistent water heating throughout the burn cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eReplaceable Fire Chamber\u003c\/h3\u003e\n\u003cp\u003eThe fire chamber is designed to be replaced when worn, extending the overall service life of the cauldron without requiring full unit replacement. This makes the WP500 a cost-effective long-term investment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eStainless Steel Outer Casing\u003c\/h3\u003e\n\u003cp\u003eThe exterior is constructed from stainless steel, which resists corrosion and holds up well in the high-humidity conditions typical of sauna environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eNo Electrical Connection Required\u003c\/h3\u003e\n\u003cp\u003eThe WP500 operates entirely on wood fuel with no electrical components, making it compatible with off-grid cabins, outdoor sauna structures, and remote installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3 class=\"highlight-heading\"\u003eManufactured by Harvia in Finland\u003c\/h3\u003e\n\u003cp\u003eHarvia has been producing sauna equipment in Finland for over 70 years. The WP500 reflects the same build standards applied across the Harvia product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Specifications --\u003e\n\u003cdiv class=\"section section-specifications\"\u003e\n\u003ch2 class=\"section-heading\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eWP500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Capacity\u003c\/th\u003e\n\u003ctd\u003e50 litres\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\u003eInner Vessel Material\u003c\/th\u003e\n\u003ctd\u003eStainless Steel (removable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Casing Material\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFire Chamber\u003c\/th\u003e\n\u003ctd\u003eReplaceable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (D x W x H)\u003c\/th\u003e\n\u003ctd\u003e18 in x 20 in x 31 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eWP500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode (EAN)\u003c\/th\u003e\n\u003ctd\u003e6417659001502\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003c!-- In the Box --\u003e\n\u003cdiv class=\"section section-inbox\"\u003e\n\u003ch2 class=\"section-heading\"\u003eIn the Box\u003c\/h2\u003e\n\u003cul class=\"inbox-list\"\u003e\n\u003cli\u003eHarvia WP500 Cauldron (50L)\u003c\/li\u003e\n\u003cli\u003eRemovable Stainless Steel Inner Vessel\u003c\/li\u003e\n\u003cli\u003eStainless Steel Outer Casing\u003c\/li\u003e\n\u003cli\u003eReplaceable Fire Chamber\u003c\/li\u003e\n\u003cli\u003eInstallation and Operation Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eA compatible chimney system is required for installation and is sold separately. Refer to the Chimney Installation Manual included with the unit.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- Ideal For --\u003e\n\u003cdiv class=\"section section-ideal-for\"\u003e\n\u003ch2 class=\"section-heading\"\u003eIdeal For\u003c\/h2\u003e\n\u003cul class=\"ideal-list\"\u003e\n\u003cli\u003eTraditional Finnish cottage saunas requiring a large hot water supply\u003c\/li\u003e\n\u003cli\u003eResidential saunas where wood-fired water heating is preferred\u003c\/li\u003e\n\u003cli\u003eOff-grid cabins and remote sauna installations without electrical access\u003c\/li\u003e\n\u003cli\u003eSauna owners who want a low-maintenance, long-service-life water heater\u003c\/li\u003e\n\u003cli\u003eBuilders and installers looking for a self-contained wood-fired cauldron solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c!-- Important Information --\u003e\n\u003cdiv class=\"section section-important\"\u003e\n\u003ch2 class=\"section-heading\"\u003eImportant Information\u003c\/h2\u003e\n\u003cul class=\"important-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation is strongly recommended.\u003c\/strong\u003e This unit requires a properly rated chimney system and must be installed in accordance with local building codes and fire safety regulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChimney system:\u003c\/strong\u003e A compatible wood-burning chimney is required and sold separately. Refer to the included Chimney Installation Manual for full specifications and clearance requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Adequate ventilation must be maintained during operation. Do not operate in an enclosed space without proper air supply and exhaust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot water hazard:\u003c\/strong\u003e The cauldron heats water to high temperatures. Use appropriate caution when accessing or handling hot water. Keep children away from the unit during and after operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Use only dry, seasoned hardwood. Do not burn treated wood, painted wood, garbage, or accelerants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsh disposal:\u003c\/strong\u003e Allow ash to cool completely before disposal. Store cooled ash in a metal container away from combustible materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleaning:\u003c\/strong\u003e Remove and clean the inner stainless steel vessel regularly to prevent mineral buildup and maintain performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Installation and Operation Manual and Chimney Installation Manual are included with the unit and contain full safety, clearance, and installation requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- FAQ --\u003e\n\u003cdiv class=\"section section-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 is a sauna cauldron used for?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eA sauna cauldron is a wood-fired water heater used in traditional Finnish sauna settings to provide a supply of hot water. It is commonly used for washing, steam generation, and maintaining the authentic cottage sauna experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eHow much water does the WP500 hold?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe WP500 holds 50 litres of water. This capacity is suited for extended sauna sessions or settings where a larger volume of hot water is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eIs the inner vessel removable for cleaning?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. The stainless steel inner vessel is fully removable from the outer casing, making it straightforward to clean without disassembling the entire unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eDoes the WP500 require electricity?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eNo. The WP500 is a fully wood-fired unit with no electrical components. It is compatible with off-grid cabins, outdoor sauna structures, and remote installations where electrical connections are unavailable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat chimney system is required?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eA chimney system rated for wood-burning appliances is required and sold separately. Full specifications and clearance requirements are detailed in the Chimney Installation Manual included with the unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary class=\"faq-question\"\u003eCan the fire chamber be replaced?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. The fire chamber is designed to be replaceable, which extends the overall service life of the cauldron without requiring full unit replacement. Replacement fire chambers are available through Harvia.\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 with a moisture content below 20%. Avoid treated wood, painted wood, garbage, or any accelerants. Proper fuel selection supports cleaner combustion and extends the life of the unit.\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 WP500 manufactured?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe WP500 is designed and manufactured in Finland by Harvia, which has been producing sauna equipment for over 70 years.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Closing Paragraph --\u003e\n\u003cdiv class=\"section section-closing\"\u003e\n\u003cp\u003eThe Harvia WP500 is a well-constructed, purpose-built wood-fired cauldron for traditional sauna use. If you are looking for a durable, large-capacity water heater with a removable vessel, a replaceable fire chamber, and no electrical requirements, this is a straightforward and reliable option. Order today and receive the complete unit with full installation documentation included.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- Health Disclaimer --\u003e\n\u003cdiv class=\"section section-disclaimer\"\u003e\n\u003cp style=\"text-align:center; font-size:0.8em; color:#666;\"\u003eSauna use is a personal wellness practice. Consult a qualified healthcare provider before use if you have any medical conditions, 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\u003c\/div\u003e\n\n\u003c!-- FAQ JSON-LD Schema --\u003e\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 is a sauna cauldron used for?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A sauna cauldron is a wood-fired water heater used in traditional Finnish sauna settings to provide a supply of hot water. It is commonly used for washing, steam generation, and maintaining the authentic cottage sauna experience.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How much water does the WP500 hold?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The WP500 holds 50 litres of water. This capacity is suited for extended sauna sessions or settings where a larger volume of hot water is needed.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the inner vessel removable for cleaning?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The stainless steel inner vessel is fully removable from the outer casing, making it straightforward to clean without disassembling the entire unit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the WP500 require electricity?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The WP500 is a fully wood-fired unit with no electrical components. It is compatible with off-grid cabins, outdoor sauna structures, and remote installations.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What chimney system is required?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A chimney system rated for wood-burning appliances is required and sold separately. Full specifications and clearance requirements are detailed in the Chimney Installation Manual included with the unit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can the fire chamber be replaced?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The fire chamber is designed to be replaceable, which extends the overall service life of the cauldron without requiring full unit replacement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What type of wood should I use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Use only dry, seasoned hardwood with a moisture content below 20%. Avoid treated wood, painted wood, garbage, or any accelerants.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Where is the Harvia WP500 manufactured?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The WP500 is designed and manufactured in Finland by Harvia, which has been producing sauna equipment for over 70 years.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003c\/div\u003e","brand":"Finnish Sauna Builders","offers":[{"title":"Default Title","offer_id":50278636454127,"sku":"WP500","price":1765.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/7568\/4079\/files\/4728-7518.jpg?v=1785532580","url":"https:\/\/intentionalwellnesslab.com\/products\/harvia-wp500-cauldron-50l-wood-burning-sauna-water-heater","provider":"Intentional Wellness Lab","version":"1.0","type":"link"}