{"product_id":"harvia-50-wood-burning-stove-50-series-40kw","title":"Harvia 50 Wood-Burning Stove 50 Series, 40kW","description":"\u003c!-- Harvia 50 - 50 Series Wood-Burning Sauna Stove - WK500 --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- SKU: WK500 | 50 Series | 706-1,766 cu ft (20-50 m3) | Floor-mounted wood-burning --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Model: 50 | 40kW | Black painted sides + stainless steel front and top --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- The king of public saunas - designed for army, camping grounds, congregations --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- 264 lbs AC3020 stones (6 boxes, 10-15 cm) required - sold separately --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Glass hatch reversible handedness | Separate service hatches at flue openings --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Large ash box | Adjustable legs --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Safety distances non-combustible: front 20\" \/ sides 4\" \/ back 4\" \/ ceiling 47\" --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Combustible clearances: significantly larger - see Safety Distances document --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Dimensions: 20\"W (510mm) x 28.3\"D (718mm) x 41.3\"H (1,049mm) | Net weight: 428 lbs --\u003e\u003c!-- 115mm (4.5\") flue - 6\" adapter required for North America --\u003e\u003c!-- Top or back flue connection --\u003e\u003c!-- Optional: WL110 floor bedding | Chimney kit WHP1500 \/ WHP1500M | Chimney extensions --\u003e\u003c!-- Pallet delivery - scheduled freight appointment required --\u003e\u003c!-- CE certified | EAC certified | Made in Finland by Harvia --\u003e\u003c!-- 2-year warranty (consumer) --\u003e\u003c!-- Documents: Installation \u0026 Operation Manual | Data Sheet | Safety Distances | Stone Requirements --\u003e\n\u003cstyle\u003e\n  .h5 { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 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}\n  }\n  @media (max-width: 480px) {\n    .h5 { padding: 0; }\n    .h5-feat-grid { grid-template-columns: 1fr; gap: 8px; }\n    .h5-feat { padding: 0.8rem 0.9rem; }\n    .h5-inc-grid { grid-template-columns: 1fr; }\n    .h5-spec-grid { gap: 1.25rem; }\n    .h5-spec-table, .h5-spec-table tbody, .h5-spec-table tr, .h5-spec-table td { display: block; width: 100%; }\n    .h5-spec-table { border: none; }\n    .h5-spec-table tr { border: 1px solid #e2e8f0; border-radius: 6px; margin-bottom: 6px; padding: 8px 12px; background: #fff !important; }\n    .h5-spec-table tr:nth-child(odd) { background: #f8fafc !important; }\n    .h5-spec-table td { border: none; padding: 1px 0; }\n    .h5-spec-table td:first-child { font-size: 10px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #64748b; width: 100%; padding-bottom: 2px; }\n    .h5-spec-table td:last-child { font-size: 15px; font-weight: 700 !important; color: #0f172a !important; width: 100%; word-wrap: break-word; overflow-wrap: break-word; }\n    .h5-divider { margin: 1.25rem 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"h5\"\u003e\n\u003cdiv class=\"h5-desc\"\u003e\n\u003ch2 class=\"product-meta__title heading h3\"\u003eHarvia 50 (WK500) Wood-Burning Sauna Stove\u003c\/h2\u003e\n\u003cdiv class=\"@app\"\u003e\n\u003cdiv id=\"shopify-block-AUndUbUE0OGk0ZHZKQ__a85eace0-7976-4319-9804-004cb28d3e5f\" class=\"shopify-block shopify-app-block\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe Harvia 50 is a 40kW wood-burning sauna stove for rooms from 706 to 1,766 cubic feet - Harvia's highest-output single-body wood stove and one of the most powerful sauna heaters in commercial production. Harvia describes the 50 as the king of public saunas: designed specifically for situations where the room is large, the group is many, and the heat must be consistent and sustained. Saunainter.com describes the intended use directly: the army, camping grounds, congregations. At 40kW with 264 lbs of AC3020 stones (6 boxes, 10-15 cm, sold separately), the Harvia 50 heats even the largest sauna rooms evenly and holds that heat long after the fire has burned down. The stainless steel front and top with black painted sides follow the Pro Series finish - easy to clean and durable under continuous use. The glass hatch faces into the sauna room and can have its opening direction reversed for installation flexibility. Separate service hatches at the flue openings simplify maintenance. A large ash box handles the output of an extended high-volume fire. Adjustable legs allow precise levelling. Flue: 115mm (4.5\") European standard - a 6\" North American adapter is required and sold separately. Pallet delivery - scheduled freight appointment required. CE and EAC certified. Made in Finland by Harvia.\u003c\/p\u003e\n\u003ch4\u003e40kW for 706 to 1,766 cu ft - the king of public saunas\u003c\/h4\u003e\n\u003cp\u003eHarvia's own description of the 50 is unambiguous: it is the king of public saunas when you need a stove for real big groups. The huge amount of stones release heat evenly into the biggest of spaces. At 40kW, the 50 is not positioned for home installations - it is built for applications where a residential heater would be completely inadequate: a very large lodge or camp sauna serving dozens of people per session, a military facility sauna room, a public sauna at a camp, congregation, or resort where the room is measured in the hundreds or even a thousand-plus cubic feet and the fire needs to run for hours. The 264-lb stone load accumulates heat over the full length of the fire and holds it in the stone mass long after the fire has burned down - essential for a session where reloading the fire is not always practical and the heat must sustain itself.\u003c\/p\u003e\n\u003ch4\u003eService hatches at flue openings, reversible glass hatch, large ash box\u003c\/h4\u003e\n\u003cp\u003eThe Harvia 50 is designed for commercial and institutional settings where maintenance matters as much as performance. Separate service hatches at the flue openings allow the flue connections to be accessed and cleaned without disassembling any part of the stove body. The glass hatch handedness is reversible - the door can be swapped to open in either direction during installation, improving access and safety in use for the specific room layout. The large ash box handles the volume of ash produced by a 40kW stove burning through extended sessions, and can be emptied without interrupting the fire. Adjustable legs allow the 428-lb stove to be levelled on any floor surface. These features are Harvia's direct acknowledgment that the 50 is a working stove in a working facility, not a weekend cottage heater.\u003c\/p\u003e\n\u003ch4\u003eStainless steel front and top - consistent with the Pro Series standard\u003c\/h4\u003e\n\u003cp\u003eThe Harvia 50 uses the same Pro Series finish as the PRO 20, PRO 36, and other Pro platform stoves: stainless steel on the front and top, black painted steel on the sides. Harvia's own description of the Pro heater finish applies here: the front and top are made of stainless steel, which is easy to keep clean. The sides of the heater are painted black and the fire that roams behind the glass hatch illuminates and creates a cozy atmosphere in the sauna. For a public or institutional sauna where the stove is in use daily and the finish is subject to handling and incidental contact, the stainless steel surfaces on the most-handled faces are the practical choice. The 115mm flue with top or back connection accommodates different chimney routing configurations. A licensed chimney professional is required for all flue installations at this output level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-hook\"\u003e40kW wood-burning sauna stove for rooms from 706 to 1,766 cubic feet. The king of public saunas - designed for the army, camping grounds, congregations, and very large group bathing. Harvia's highest-output single-body wood stove. Stainless steel front and top with black painted sides. Glass hatch with reversible handedness. Separate service hatches at flue openings. Large ash box. Adjustable legs. No electricity required. 264 lbs AC3020 stones required (6 boxes, 10-15 cm, sold separately). Safety distances (non-combustible): front 20\", sides 4\", back 4\", ceiling 47\". See Safety Distances document for combustible material clearances. Top or back flue connection. 115mm flue - 6\" adapter required for North America (sold separately). Dimensions: 20\"W x 28.3\"D x 41.3\"H. Net weight: 428 lbs. Pallet delivery - scheduled freight required. 2-year warranty (consumer). CE and EAC certified. Made in Finland by Harvia.\u003c\/div\u003e\n\u003cdiv class=\"h5-badges\"\u003e\n\u003cspan class=\"h5-badge\"\u003e40 kW\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003e706 to 1,766 cu ft\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eKing of public saunas - army, camps, congregations\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eHarvia's highest-output wood stove\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eStainless steel front and top - black sides\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eGlass hatch - reversible handedness\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eSeparate service hatches at flue openings\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eLarge ash box\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eAdjustable legs\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eWood-burning - no electricity required\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003e264 lbs AC3020 stones required (6 boxes, 10-15 cm)\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eSafety (non-combustible): front 20\", sides 4\", back 4\"\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eTop or back flue connection\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003e115mm flue - 6\" adapter required for North America\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003e20\"W x 28.3\"D x 41.3\"H - 428 lbs\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003ePallet delivery required\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003e2-year warranty (consumer)\u003c\/span\u003e \u003cspan class=\"h5-badge\"\u003eCE and EAC certified - made in Finland\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-notice-yellow\"\u003e⚠️ \u003cstrong\u003e264 lbs AC3020 stones (6 boxes, 10-15 cm) required - not included. 6\" North American flue adapter required - not included. Pallet delivery.\u003c\/strong\u003e Stones and the 6\" adapter must be purchased separately. An additional box of stones is recommended for selection of best-fitting stones. This stove ships by scheduled pallet freight - a delivery appointment is required. At 428 lbs net weight, plan for significant on-site assistance and appropriate lifting equipment to move the stove from the pallet delivery point to its installation position. A licensed chimney professional is required for all flue installations at this output level. Combustible material safety distances are significantly larger than non-combustible distances - see the Safety Distances document below before planning the installation.\u003c\/div\u003e\n\u003cdiv class=\"h5-notice\"\u003eℹ️ \u003cstrong\u003eHarvia 50 vs PRO 36 vs Legend 300 - large and very large sauna stove selection.\u003c\/strong\u003e PRO 36 WKPR36M: 31kW, 494-1,271 cu ft, 132 lbs stones (3 boxes AC3020), 19.69\" clearances all sides (reduces to 4.7\" with WL550 sheath). The right choice for large home saunas, lodge saunas, and commercial applications in the 494-1,271 cu ft range. Legend 300 WKLE36M: 23.5kW, 494-989 cu ft, 573 lbs stones (13 boxes AC3020) - for buyers where maximum stone mass and the longest sustained heat after the fire are the priority over raw output. Harvia 50 WK500 (this listing): 40kW, 706-1,766 cu ft, 264 lbs stones (6 boxes AC3020), 428 lbs, designed specifically for public, institutional, and very large group applications. Choose the Harvia 50 when the room is in the 706-1,766 cu ft range, the group is very large, and the application is public or institutional - army, camp, congregation, or large resort sauna - where no other configuration in the Harvia lineup delivers the required output.\u003c\/div\u003e\n\u003chr class=\"h5-divider\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"h5-spec-grid\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003ePerformance\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e40 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel type\u003c\/td\u003e\n\u003ctd\u003eWood - no electricity required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom volume\u003c\/td\u003e\n\u003ctd\u003e706 to 1,766 cu ft (20-50 m3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e264 lbs \/ 120 kg (6 boxes AC3020, 10-15 cm) - sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone size\u003c\/td\u003e\n\u003ctd\u003eO 10-15 cm (AC3020)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003ePublic saunas, army, camps, congregations, large groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003eSafety distances (non-combustible materials)\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront (non-combustible)\u003c\/td\u003e\n\u003ctd\u003e20 in (508 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSides (non-combustible)\u003c\/td\u003e\n\u003ctd\u003e4 in (102 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack (non-combustible)\u003c\/td\u003e\n\u003ctd\u003e4 in (102 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeiling clearance\u003c\/td\u003e\n\u003ctd\u003e47 in \/ 3.92 ft (1,194 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombustible material clearances\u003c\/td\u003e\n\u003ctd\u003eSee Safety Distances document below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum room ceiling height\u003c\/td\u003e\n\u003ctd\u003e6.56 ft (2,000 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003eFlue and installation\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlue connection diameter\u003c\/td\u003e\n\u003ctd\u003e115mm (4.5\") - standard European\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlue connection position\u003c\/td\u003e\n\u003ctd\u003eTop or back - selected during installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNorth American adapter\u003c\/td\u003e\n\u003ctd\u003e6\" (155mm) adapter required - sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService hatches\u003c\/td\u003e\n\u003ctd\u003eSeparate hatches at flue openings for maintenance access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegs\u003c\/td\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eScheduled pallet freight - appointment required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003ePhysical dimensions\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e20 in (510 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e28.3 in (718 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e41.3 in (1,049 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (stove only)\u003c\/td\u003e\n\u003ctd\u003e428 lbs (194 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003eConstruction and finish\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront and top\u003c\/td\u003e\n\u003ctd\u003eStainless steel - easy to clean\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSides\u003c\/td\u003e\n\u003ctd\u003eBlack painted steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass hatch\u003c\/td\u003e\n\u003ctd\u003eReversible handedness - set during installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAsh box\u003c\/td\u003e\n\u003ctd\u003eLarge ash box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService hatches\u003c\/td\u003e\n\u003ctd\u003eAt flue openings - maintenance without disassembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegs\u003c\/td\u003e\n\u003ctd\u003eAdjustable feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eFloor-mounted, vertical orientation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse environment\u003c\/td\u003e\n\u003ctd\u003eInterior - wet area \/ public \/ institutional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003eCertifications and compliance\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE \/ EAC certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in Finland by Harvia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-year limited (consumer use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-spec-block\"\u003e\n\u003ch4\u003eOptional accessories (sold separately)\u003c\/h4\u003e\n\u003ctable class=\"h5-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNorth American flue adapter\u003c\/td\u003e\n\u003ctd\u003eHarvia WZ115155 (6\" \/ 155mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloor bedding\u003c\/td\u003e\n\u003ctd\u003eHarvia WL110 (aluminium-zinc coated steel, black)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChimney kit\u003c\/td\u003e\n\u003ctd\u003eHarvia WHP1500 \/ WHP1500M (stainless steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChimney extensions\u003c\/td\u003e\n\u003ctd\u003eHarvia WHP500M \/ WHP1000 \/ WHP1000M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"h5-divider\"\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"h5-inc-grid\"\u003e\n\u003cdiv class=\"h5-inc-item\"\u003eHarvia 50 40kW wood-burning sauna stove\u003c\/div\u003e\n\u003cdiv class=\"h5-inc-item\"\u003eGlass hatch (reversible handedness)\u003c\/div\u003e\n\u003cdiv class=\"h5-inc-item\"\u003eLarge ash box\u003c\/div\u003e\n\u003cdiv class=\"h5-inc-item\"\u003eAdjustable legs\u003c\/div\u003e\n\u003cdiv class=\"h5-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003cdiv class=\"h5-inc-item\"\u003e2-year limited warranty (consumer use)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 1rem; font-weight: 500; color: #64748b; font-size: 14px;\"\u003e\u003cstrong\u003eRequired (not included):\u003c\/strong\u003e 264 lbs AC3020 stones - 6 boxes, 10-15 cm (additional box recommended); 6\" North American flue adapter (Harvia WZ115155). \u003cstrong\u003eOptional accessories (sold separately):\u003c\/strong\u003e WL110 floor bedding; WHP1500 \/ WHP1500M chimney kit; chimney extensions (WHP500M, WHP1000, WHP1000M). A licensed chimney professional is required for all flue installations at 40kW output. On-site lifting assistance required at delivery - stove is 428 lbs.\u003c\/p\u003e\n\u003chr class=\"h5-divider\"\u003e\n\u003ch3\u003eWhy the Harvia 50 stands out\u003c\/h3\u003e\n\u003cdiv class=\"h5-feat-grid\"\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003e40kW - the highest output in the Harvia wood stove lineup\u003c\/div\u003e\n\u003cp\u003eAt 40kW, the Harvia 50 delivers more than any other single-body Harvia wood stove. The PRO 36 delivers 31kW. The Legend 300 delivers 23.5kW. The Harvia 50 at 40kW is in a different output class from anything else in the Harvia lineup - built for sauna rooms that are simply too large for any other Harvia stove to heat adequately. The 706-1,766 cu ft range is the range of very large institutional or commercial sauna rooms: a room over 700 cu ft with a ceiling at the required minimum 6.56 ft height is already a large commercial facility sauna. A room at 1,766 cu ft is the size of a substantial lodge or public bath sauna. Only the Harvia 50 is built for both ends of this range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003e264 lbs of stones - even heat in the biggest spaces\u003c\/div\u003e\n\u003cp\u003eHarvia's own description is direct: the huge amount of stones release heat evenly into the biggest of spaces. At 264 lbs (6 boxes AC3020), the stone load is substantial - the same weight as the Legend 300 Duo's stone capacity, in a stove that also delivers 40kW of direct heat output. The large stone mass accumulates heat throughout the fire, distributes it evenly into a room up to 1,766 cu ft, and holds the temperature steady long after the fire has burned down. For a large group bathing session where the fire cannot be continuously attended, the stone thermal mass is what sustains the session. Steam is abundant and consistent because there is simply a large amount of heated stone mass to draw from.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003eService hatches at flue openings - institutional maintenance design\u003c\/div\u003e\n\u003cp\u003eThe Harvia 50 includes separate service hatches at the flue openings. In a residential stove, flue access for cleaning and maintenance typically requires either removing the stove or a more involved disassembly process. In the 50, the service hatches provide direct access to the flue connections without disturbing the stove installation. For a public or institutional sauna that runs daily and requires regular chimney and flue inspection and cleaning, this is a meaningful operational advantage. The large ash box is similarly sized for the output - it holds enough ash from an extended high-volume fire to not require emptying mid-session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003eReversible glass hatch - adapts to any room layout\u003c\/div\u003e\n\u003cp\u003eThe glass hatch on the Harvia 50 has reversible handedness - the door can be set to open left or right during installation to suit the approach direction and room layout. In a large sauna room with fixed bench configurations and a specific traffic flow, the ability to set the hatch direction at installation is an important safety and usability detail. The glass hatch allows the fire to illuminate the sauna room throughout the session - consistent with the Pro Series design approach across the Harvia lineup. Adjustable legs allow the 428-lb stove to be precisely levelled during installation on any floor surface and chimney height condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003eStainless steel front and top - Pro Series finish\u003c\/div\u003e\n\u003cp\u003eThe Harvia 50 uses the same stainless steel front and top as the PRO 20, PRO 36, and other Pro platform stoves. Stainless steel resists heat discolouration, cleans easily, and holds up to the repeated handling of a stove in daily public use - wood loading, ash removal, and general proximity contact in a busy facility. The black painted sides provide the classic Pro Series aesthetic. In a public or institutional sauna where the stove is in active use by many different users and the appearance and cleanliness of the facility reflect on the operator, the stainless surfaces on the most visible and most handled faces are the practical specification choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-feat\"\u003e\n\u003cdiv class=\"h5-feat-title\"\u003eThe Harvia 50 in context - public sauna heritage\u003c\/div\u003e\n\u003cp\u003eThe Harvia 50's intended use is stated plainly by the manufacturer: the army, camping grounds, congregations. These are not home sauna applications. The Harvia 50 is for sauna rooms that serve dozens of people per session across multiple rounds of bathing, where the stove must perform reliably session after session without failure, and where the heat must reach every corner of a room that would be described as a large hall by residential standards. In Harvia's full wood stove lineup, the 50 is the terminal point: the most output, the largest room range, and the most explicitly public and institutional design brief of any stove they produce. CE and EAC certified. Designed, engineered, and made in Finland. We are an authorized Harvia dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"h5-divider\"\u003e\n\u003ch3\u003eAbout Harvia\u003c\/h3\u003e\n\u003cdiv class=\"h5-brand1\" style=\"text-align: start;\"\u003e\n\u003cimg class=\"h5-brand-img\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/WK500.jpg?v=1781248648\u0026amp;width=800\" alt=\"Harvia 50 WK500 40kW wood-burning sauna stove 706-1766 cu ft 264 lbs stones black stainless steel public sauna\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"h5-brand-tag\"\u003eMade in Finland - CE Certified - 50 Series - Public and Institutional\u003c\/span\u003e\n\u003ch4\u003eHarvia 50. 40kW. 706-1,766 cu ft. 264 lbs of stones. The king of public saunas.\u003c\/h4\u003e\n\u003cp\u003eHarvia is a Finnish sauna and spa company established in 1950. The Harvia 50 is the highest-output single-body wood stove in the Harvia lineup - 40kW for sauna rooms from 706 to 1,766 cu ft, designed for the army, camping grounds, congregations, and large group bathing. Stainless steel front and top, reversible glass hatch, separate service hatches at flue openings, large ash box, and adjustable legs. 264 lbs AC3020 stones (6 boxes, 10-15 cm) and a 6\" North American flue adapter are required and sold separately. Pallet delivery. We are an authorized Harvia dealer.\u003c\/p\u003e\n\u003cul class=\"h5-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e40kW wood-burning\u003c\/strong\u003e - 706-1,766 cu ft - public and institutional use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e264 lbs AC3020 stones required (6 boxes)\u003c\/strong\u003e - even heat in the largest spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel front and top\u003c\/strong\u003e - reversible glass hatch - service hatches at flue\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSafety distances (non-combustible): front 20\", sides 4\", back 4\"\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e115mm flue - 6\" adapter required\u003c\/strong\u003e - 428 lbs - pallet delivery - CE and EAC certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-brand2\" style=\"text-align: start;\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"h5-brand-tag\"\u003eHarvia 50 vs PRO 36 vs Legend 300 - large sauna stove output guide\u003c\/span\u003e\n\u003ch4\u003eHarvia 50 vs PRO 36 vs Legend 300 - selecting the right stove for very large sauna rooms\u003c\/h4\u003e\n\u003cp\u003eThree Harvia wood stoves serve the upper end of the room size range. Legend 300 WKLE36M: 23.5kW, 494-989 cu ft, 573 lbs stones (13 boxes AC3020). Maximum stone mass for the longest sustained heat after the fire. Right for large private saunas where stone mass and steam duration are the priority. PRO 36 WKPR36M: 31kW, 494-1,271 cu ft, 132 lbs stones (3 boxes AC3020), 154.3 lbs net weight, 19.69\" clearances all sides (4.7\" with WL550 sheath). Right for large lodge, camp, and commercial saunas in the 494-1,271 cu ft range where 31kW of Pro Series output is the specification. Harvia 50 WK500 (this listing): 40kW, 706-1,766 cu ft, 264 lbs stones (6 boxes AC3020), 428 lbs net weight, designed explicitly for public and institutional use. Right when the room is in the 706-1,766 cu ft range, the group is very large, and the application is institutional - army, camp, congregation, or resort. The Harvia 50 is not a larger version of the PRO 36 for home use - it is a categorically different product built for a categorically different application. If the room is below 706 cu ft, the PRO 36 or Legend 300 is the right choice. If the room is in the 706-1,766 cu ft range and the use is public or institutional, the Harvia 50 is the purpose-built specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg class=\"h5-brand-img\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/WK500.jpg?v=1781248648\u0026amp;width=800\" alt=\"Harvia 50 40kW vs PRO 36 31kW vs Legend 300 23.5kW large sauna wood stove comparison\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"h5-divider\"\u003e\n\u003ch3\u003eManuals and Documents\u003c\/h3\u003e\n\u003cdiv class=\"h5-manual\"\u003e\n\u003cdiv class=\"h5-manual-item\"\u003e\n\u003ch6\u003eInstallation and Operation Manual\u003c\/h6\u003e\n\u003ca class=\"h5-doc-link\" href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-06\/Harvia-50-Sauna-Heater-IOM.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Installation \u0026amp; Operation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-manual-item\"\u003e\n\u003ch6\u003eData Sheet\u003c\/h6\u003e\n\u003ca class=\"h5-doc-link\" href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-06\/Harvia-WK500-Sauna-Heater-Data-Sheet.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Data Sheet (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-manual-item\"\u003e\n\u003ch6\u003eSafety Distances\u003c\/h6\u003e\n\u003ca class=\"h5-doc-link\" href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2022-10\/WK500%20Safety.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Safety Distances (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"h5-manual-item\"\u003e\n\u003ch6\u003eStone Requirements\u003c\/h6\u003e\n\u003ca class=\"h5-doc-link\" href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-02\/Harvia%20Stone%20Requirements%2002.27.25.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Stone Requirements (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cdiv class=\"h5-warranty\"\u003e\n\u003ch5\u003e2-year limited warranty (consumer use)\u003c\/h5\u003e\n\u003cp\u003eThe Harvia 50 is covered by Harvia's \u003cstrong\u003e2-year limited warranty\u003c\/strong\u003e from the date of purchase for consumer use. The warranty covers defects in manufacturing and materials under normal use conditions. The warranty does not cover damage caused by improper installation, use of incorrect stone type or size (non-AC3020, or stones outside the 10-15 cm specified diameter range), operating without the required stone load, failure to follow the installation and operating guidelines in the manual, damage from inadequate chimney maintenance, or soot fires. A licensed chimney professional is required for all flue installation at this output level, and regular chimney sweep maintenance is essential for a 40kW stove in institutional or public use. Proof of purchase from an authorized Harvia dealer is required for warranty claims. We are an authorized Harvia dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":52345500369178,"sku":"WK500","price":7587.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/WK500.jpg?v=1781248648","url":"https:\/\/mediriser.com\/products\/harvia-50-wood-burning-stove-50-series-40kw","provider":"Mediriser","version":"1.0","type":"link"}