{"product_id":"harvia-pro-20-pro-series-24-1kw-wood-burning-sauna-stove","title":"Harvia PRO 20 Pro Series 24.1kW Wood-Burning Sauna Stove","description":"\u003c!-- Harvia PRO 20 - 24.1kW Wood-Burning Sauna Stove - WKPR20M --\u003e\u003c!-- SKU: WKPR20M | Pro Series | 283-706 cu ft | Interior feed | Vigorous sauna bathing --\u003e\u003c!-- Cast-iron framed glass door | Graphite black + stainless steel construction --\u003e\u003c!-- 88 lbs stones (2 boxes AC3020 10-15cm) sold separately --\u003e\u003c!-- Max firewood: 15\" length, 3-6\" diameter | Top or back flue connection --\u003e\u003c!-- Safety distances: front 12\" \/ sides 4\" \/ back 4\" - very tight clearances --\u003e\u003c!-- Flue: 115mm (4.5\") - 6\" adapter required for North America (sold separately) --\u003e\u003c!-- WL550 protective shield compatible | Optional pipe-mounted water heater --\u003e\u003c!-- Pallet delivery - scheduled freight appointment required --\u003e\u003c!-- 2-year warranty (consumer) | CE certified | Made in Finland by Harvia --\u003e\u003c!-- 5 document sections: IOM | Data Sheet | Safety Sheet | Declaration of Performance | Stone Requirements --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 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padding: 1.25rem 1.5rem; margin-bottom: 1.5rem; }\n  .sl-manual-item { margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid #e2e8f0; }\n  .sl-manual-item:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }\n  .sl-manual-item h6 { font-size: 14px; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.5rem; }\n  .sl-doc-link { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 500; color: #4a5568; background: #fff; border: 1px solid #d1d5db; border-radius: 5px; padding: 8px 14px; text-decoration: none; }\n  .sl-doc-link:hover { background: #e8f0fa; border-color: #bfd4ef; color: #2563a8; }\n  .sl-divider { border: none; border-top: 1px solid #e2e8f0; margin: 1.75rem 0; }\n  @media (max-width: 768px) {\n    .sl-feat-grid { grid-template-columns: 1fr 1fr; }\n    .sl-spec-grid { grid-template-columns: 1fr; gap: 1.5rem; }\n    .sl-brand1, .sl-brand2 { grid-template-columns: 1fr; gap: 1rem; padding: 1rem 0; }\n    .sl-brand2 { display: flex; flex-direction: column-reverse; }\n    .sl-brand1 h4, .sl-brand2 h4 { font-size: 18px !important; }\n  }\n  @media (max-width: 480px) {\n    .sl { padding: 0; }\n    .sl-feat-grid { grid-template-columns: 1fr; gap: 8px; }\n    .sl-feat { padding: 0.8rem 0.9rem; }\n    .sl-inc-grid { grid-template-columns: 1fr; }\n    .sl-spec-grid { gap: 1.25rem; }\n    .sl-spec-table, .sl-spec-table tbody, .sl-spec-table tr, .sl-spec-table td { display: block; width: 100%; }\n    .sl-spec-table { border: none; }\n    .sl-spec-table tr { border: 1px solid #e2e8f0; border-radius: 6px; margin-bottom: 6px; padding: 8px 12px; background: #fff !important; }\n    .sl-spec-table tr:nth-child(odd) { background: #f8fafc !important; }\n    .sl-spec-table td { border: none; padding: 1px 0; }\n    .sl-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    .sl-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    .sl-divider { margin: 1.25rem 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"sl\"\u003e\n\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eHarvia PRO 20 Pro Series 24.1kW Wood-Burning Sauna Stove\u003c\/h2\u003e\n\u003cp\u003eThe Harvia PRO 20 is a 24.1kW wood-burning sauna stove for medium-sized rooms from 283 to 706 cubic feet, built for vigorous sauna bathing. The large stone compartment produces hearty, dense steam for high-intensity sauna sessions. The cast-iron framed glass door lets the fire glow through into the sauna room. The graphite black frame with stainless steel construction gives the PRO 20 a sophisticated appearance that suits both traditional and contemporary sauna rooms. No electricity required. Firewood is loaded from inside the sauna. Sauna stones (88 lbs, 2 boxes of AC3020, 10-15 cm) are required and sold separately. Delivery is by scheduled freight on a wooden pallet.\u003c\/p\u003e\n\u003ch4\u003ePro Series - built for vigorous sauna bathing\u003c\/h4\u003e\n\u003cp\u003eHarvia describes the PRO 20 as designed for vigorous sauna bathing - a deliberate positioning that distinguishes it from the Legend Series and M3. The Pro Series targets serious home sauna users who want sustained high heat output, hearty steam production, and a stove that performs well under frequent, intense use. The 24.1kW output positions the PRO 20 at the higher end of the medium room range, meaning the stove can bring a 283 cu ft room to temperature quickly and sustain a 706 cu ft room at vigorous bathing temperatures. The large stone compartment - designed to hold 88 lbs of AC3020 - produces steam with the density and duration that vigorous sauna bathing demands. The PRO 20's safety distances are notably compact: 4\" from sides, 4\" from back, and 12\" from front to combustible materials, giving sauna designers maximum flexibility in bench and wall placement within the room.\u003c\/p\u003e\n\u003ch4\u003eCast-iron framed glass door - sophisticated design\u003c\/h4\u003e\n\u003cp\u003eThe PRO 20's cast-iron framed glass door is a consistent feature across the Pro Series. The cast-iron frame provides the thermal mass and durability that the sustained high temperatures of a 24.1kW wood fire require over years of regular intense use. The glass lets the fire be seen from inside the sauna throughout the session - the visual presence of the fire is a meaningful part of the wood-burning sauna experience. The graphite black exterior with stainless steel components is described by Harvia as a sophisticated design - a contemporary finish that works in modern sauna interiors as well as traditional ones.\u003c\/p\u003e\n\u003ch4\u003eFlue options, firewood spec, and North American installation\u003c\/h4\u003e\n\u003cp\u003eThe PRO 20 supports both top flue and back flue connection - selected during installation based on the chimney routing and room layout. All Harvia wood-burning stoves use a 115mm (4.5\") European standard flue outlet; a 6\" (155mm) North American adapter is required and sold separately (Harvia WZ115155). Maximum firewood length is 15\" (390mm) with a diameter range of 3\" to 6\" (80-150mm) - standard split firewood dimensions for home sauna use. A licensed or certified chimney professional is strongly recommended for all flue installations. The PRO 20 is compatible with the Harvia WL550 protective shield (sold separately), which is designed specifically for the Pro 20, Pro 20 SL, and Pro 20 Duo variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003e24.1kW wood-burning sauna stove for medium-sized rooms from 283 to 706 cubic feet. Designed for vigorous sauna bathing. Large stone compartment - hearty steam production. Cast-iron framed glass door. Graphite black with stainless steel construction. No electricity required. 88 lbs stones required (2 boxes AC3020 10-15 cm, sold separately). Safety distances: 4\" sides, 4\" back, 12\" front. Top or back flue connection. Max firewood 15\" \/ 3-6\" diameter. Flue: 115mm - 6\" adapter required for North America (sold separately). Adjustable feet. Ash box included. WL550 protective shield compatible. Pallet delivery - scheduled freight appointment required. 2-year warranty (consumer). CE certified. Made in Finland by Harvia.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003e24.1 kW\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e283 to 706 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eDesigned for vigorous sauna bathing\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eWood-burning - no electricity required\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eCast-iron framed glass door\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eGraphite black + stainless steel construction\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eLarge stone compartment - hearty steam\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e88 lbs AC3020 stones required (2 boxes, 10-15 cm)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSafety distances: 4\" sides, 4\" back, 12\" front\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eTop or back flue connection\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMax firewood 15\" \/ 3-6\" diameter\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e115mm flue - 6\" adapter required for North America\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eAdjustable feet\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eWL550 protective shield compatible\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003ePallet delivery required\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e2-year warranty (consumer)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eCE certified - made in Finland\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-notice-yellow\"\u003e⚠️ \u003cstrong\u003e88 lbs AC3020 stones (2 boxes, 10-15 cm) required - not included. 6\" North American flue adapter required - not included. Pallet delivery.\u003c\/strong\u003e Stones and the 6\" flue adapter must be purchased separately. An additional box is recommended. This stove ships by scheduled freight on a wooden pallet - a delivery appointment is required. Plan for on-site assistance to move the stove from the pallet delivery point to the installation position. A licensed chimney professional is recommended for all flue installations.\u003c\/div\u003e\n\u003cdiv class=\"sl-notice\"\u003eℹ️ \u003cstrong\u003ePRO 20 vs PRO 20 SL - interior vs exterior feed.\u003c\/strong\u003e WKPR20M (this listing): standard interior feed - firebox door faces into the sauna room, wood loaded from inside. PRO 20 SL: exterior feed variant - fire chamber extends through the sauna wall, wood loaded from an adjacent room or outdoors. Both share the same 24.1kW output, room range, stone requirement, and specifications. Choose the PRO 20 SL if loading wood without entering the sauna room is required.\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"sl-spec-grid\"\u003e\n\u003cdiv class=\"sl-spec-tables\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003ePerformance\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e24.1 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\u003e283 to 706 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e88 lbs (2 boxes AC3020, 10-15 cm) - sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax firewood length\u003c\/td\u003e\n\u003ctd\u003e15\" (390mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirewood diameter\u003c\/td\u003e\n\u003ctd\u003e3\" to 6\" (80-150mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003ePhysical\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e16.9\" (430mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e20\" (510mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e29.9\"-31.1\" (760-790mm) - adjustable via feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eGraphite black steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoor\u003c\/td\u003e\n\u003ctd\u003eCast-iron framed glass door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFloor-standing with adjustable feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAsh box\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eSafety distances (to combustible materials)\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003e12\" (300mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSides\u003c\/td\u003e\n\u003ctd\u003e4\" (100mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack\u003c\/td\u003e\n\u003ctd\u003e4\" (100mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNote\u003c\/td\u003e\n\u003ctd\u003eVerify against Safety Sheet document below before finalising bench and wall placement\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 class=\"sl-spec-image\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eFlue and installation\u003c\/h4\u003e\n\u003ctable class=\"sl-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\u003eFirebox access\u003c\/td\u003e\n\u003ctd\u003eFrom inside the sauna room (standard WKPR20M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eScheduled freight - wooden pallet - appointment required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003ePro Series variants - same platform, different configurations\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePRO 20 WKPR20M (this listing)\u003c\/td\u003e\n\u003ctd\u003e24.1kW | Interior feed | Standard stove only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePRO 20 SL\u003c\/td\u003e\n\u003ctd\u003e24.1kW | Exterior feed through wall | Reversible door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePRO 20 ES\u003c\/td\u003e\n\u003ctd\u003e24.1kW | Interior feed | Built-in 20L water tank (front)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePRO 20 LS\u003c\/td\u003e\n\u003ctd\u003e24.1kW | Interior feed | Built-in 30L water tank (left side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePRO 20 Duo\u003c\/td\u003e\n\u003ctd\u003e24.1kW | Heats two rooms + fireplace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll variants\u003c\/td\u003e\n\u003ctd\u003e283-706 cu ft | 88 lbs stones | WL550 shield compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eOptional accessories (sold separately)\u003c\/h4\u003e\n\u003ctable class=\"sl-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\u003eProtective shield\u003c\/td\u003e\n\u003ctd\u003eHarvia WL550 (specific to Pro 20\/SL\/Duo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe-mounted water heater\u003c\/td\u003e\n\u003ctd\u003eHarvia WL200 or WL300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlue pipe extensions\u003c\/td\u003e\n\u003ctd\u003eHarvia WZ11520, WZ11550, WZ115100\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=\"sl-divider\"\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"sl-inc-grid\"\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eHarvia PRO 20 wood-burning sauna stove - graphite black with stainless steel construction\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eCast-iron framed glass door\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eAsh box\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eAdjustable feet\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003cdiv class=\"sl-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 88 lbs AC3020 sauna stones - 2 boxes, 10-15 cm (an additional box recommended); 6\" North American flue adapter (Harvia WZ115155). \u003cstrong\u003eOptional accessories (sold separately):\u003c\/strong\u003e WL550 protective shield; pipe-mounted water heater (WL200 or WL300); flue pipe components (WZ11520, WZ11550, WZ115100). A licensed chimney professional is recommended for all flue installations.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the Harvia PRO 20 stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e24.1kW for vigorous sauna bathing\u003c\/div\u003e\n\u003cp\u003eThe PRO 20 is Harvia's purpose-built high-output stove for serious home sauna use. At 24.1kW for rooms from 283 to 706 cu ft, it brings large rooms to temperature faster than lower-output stoves and sustains vigorous bathing temperatures - above 185°F and approaching 200°F - that smaller stoves in the same room range cannot maintain consistently. For sauna enthusiasts who prefer hot, intense sessions with dense steam, the PRO 20 is sized for the experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eLarge stone compartment - hearty steam\u003c\/div\u003e\n\u003cp\u003eThe 88-lb stone capacity produces what Harvia describes as \"hearty\" steam - the dense, moisture-laden steam that results from a well-heated large stone mass. When water is ladled onto a large heated stone mass, the steam production is more generous and sustained than from smaller stone loads. The PRO 20's stone compartment is engineered to hold and retain heat in the stone mass throughout the vigorous sauna session the stove is designed for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eTight safety distances - 4\" sides and back\u003c\/div\u003e\n\u003cp\u003eThe PRO 20's 4\" clearance to combustible side and back surfaces and 12\" clearance to the front are among the tightest safety distances in the Harvia wood stove lineup. These reduced clearances give sauna designers maximum flexibility in bench placement and room layout within the 283-706 cu ft range - particularly useful in medium-sized sauna rooms where every inch of bench positioning matters. Always verify the specific safety distances in the Safety Sheet document below before finalising construction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eTop or back flue connection\u003c\/div\u003e\n\u003cp\u003eThe PRO 20 supports flue connection from either the top of the stove or the back, selected during installation to match the chimney routing and room layout. Top flue connection suits ceiling-exit chimney systems; back flue connection suits wall-exit configurations. The flexibility to choose eliminates the need to plan the sauna room around a fixed flue position - the stove adapts to whichever configuration the specific build requires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eWL550 protective shield compatible\u003c\/div\u003e\n\u003cp\u003eThe Harvia WL550 protective shield is the model-specific shield designed for the PRO 20, PRO 20 SL, and PRO 20 Duo variants. It mounts around the stove to further reduce safety distances to combustible materials beyond the stove's standard specifications - providing additional installation flexibility and protecting adjacent wall surfaces in the sauna room. The WL550 is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003ePro Series platform - multiple configurations\u003c\/div\u003e\n\u003cp\u003eThe WKPR20M is the base standard interior-feed model in the Pro 20 platform. The same 24.1kW platform is available in exterior-feed (PRO 20 SL), with built-in 20L front water tank (PRO 20 ES), with built-in 30L left-side water tank (PRO 20 LS), and as a dual-room sauna-plus-fireplace combination (PRO 20 Duo). All share the 283-706 cu ft room range, 88-lb stone requirement, and WL550 shield compatibility. Designed, engineered, and made in Finland by Harvia. We are an authorized Harvia dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eAbout Harvia\u003c\/h3\u003e\n\u003cdiv class=\"sl-brand1\"\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2025-02\/harvia-pro-20-sauna-stove-WK200.jpg\" alt=\"Harvia PRO 20 WKPR20M 24.1kW wood-burning sauna stove graphite black stainless steel cast-iron glass door 283-706 cu ft vigorous sauna bathing\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Finland - CE Certified - Pro Series\u003c\/span\u003e\n\u003ch4\u003eHarvia PRO 20. 24.1kW wood-burning. 283-706 cu ft. Vigorous bathing. Cast-iron glass door.\u003c\/h4\u003e\n\u003cp\u003eHarvia is a Finnish sauna and spa company established in 1950. The PRO 20 is Harvia's 24.1kW wood-burning sauna stove for vigorous home sauna use in rooms from 283 to 706 cubic feet - graphite black with stainless steel construction, cast-iron framed glass door, large stone compartment, and tight 4\" side\/back safety distances. 88 lbs of AC3020 stones (2 boxes) 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=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e24.1kW wood-burning\u003c\/strong\u003e - 283-706 cu ft - designed for vigorous sauna bathing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast-iron framed glass door\u003c\/strong\u003e - graphite black + stainless steel\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSafety distances: 4\" sides, 4\" back, 12\" front\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop or back flue connection\u003c\/strong\u003e - max firewood 15\" \/ 3-6\" diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 lbs AC3020 stones (2 boxes) required\u003c\/strong\u003e - 6\" adapter required - both sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-brand2\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003ePRO 20 vs Legend 240 SL vs M3 vs Legend 150\u003c\/span\u003e\n\u003ch4\u003eChoosing between the Harvia wood stoves at BathingBrands\u003c\/h4\u003e\n\u003cp\u003eFour Harvia wood-burning stoves are available at BathingBrands. M3 WKM3: 16.5kW, 212-459 cu ft, 66 lbs stones, compact 15.4\"W, interior feed, best-selling classic. Legend 150 WK150LD: 16kW, 212-459 cu ft, 264 lbs stones, 21\"W, interior feed, cast-iron glass door, large stone mass. Legend 240 SL WKLE20SLM: 21kW, 353-848 cu ft, 440 lbs stones, exterior feed through wall, reversible cast-iron glass door. PRO 20 WKPR20M (this listing): 24.1kW, 283-706 cu ft, 88 lbs stones, interior feed, graphite black + stainless, tight 4\" side clearances, designed for vigorous use. For rooms under 460 cu ft: M3 (compact), Legend 150 (large stone mass), or PRO 20 (vigorous bathing, 24.1kW). For large rooms 353-848 cu ft needing exterior feed: Legend 240 SL. For vigorous bathing in the 283-706 cu ft range with a contemporary stainless steel aesthetic: PRO 20.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2025-02\/harvia-m3-sauna-stove-WKM3.jpg\" alt=\"Harvia wood stove lineup M3 compact Legend 150 large stone mass Legend 240 SL exterior feed PRO 20 vigorous bathing comparison\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eManuals and Documents\u003c\/h3\u003e\n\u003cdiv class=\"sl-manual\"\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eInstallation and Operation Manual\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/www.bathingbrands.com\/48421\/harvia\/pro-20\/wood-sauna-stoves\" 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 and Operation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eData Sheet\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/www.bathingbrands.com\/48421\/harvia\/pro-20\/wood-sauna-stoves\" 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=\"sl-manual-item\"\u003e\n\u003ch6\u003eSafety Sheet\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/www.bathingbrands.com\/48421\/harvia\/pro-20\/wood-sauna-stoves\" 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 Sheet (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eDeclaration of Performance\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/www.bathingbrands.com\/48421\/harvia\/pro-20\/wood-sauna-stoves\" 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 Declaration of Performance (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eStone Requirements\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/www.bathingbrands.com\/48421\/harvia\/pro-20\/wood-sauna-stoves\" 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=\"sl-warranty\"\u003e\n\u003ch5\u003e2-year limited warranty (consumer use)\u003c\/h5\u003e\n\u003cp\u003eThe Harvia PRO 20 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, operating without the required stone load, failure to follow the installation and operating guidelines in the manual, damage from inadequate chimney maintenance, soot fires, or damage from overfiring. A licensed or certified chimney professional is recommended for all flue installation and regular chimney sweep maintenance. 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":52320026951962,"sku":"WKPR20M","price":1950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/harvia-sauna-stove-harvia-pro-20-wk200-wood-burning-sauna-stove-1182037369.jpg?v=1780689541","url":"https:\/\/mediriser.com\/products\/harvia-pro-20-pro-series-24-1kw-wood-burning-sauna-stove","provider":"Mediriser","version":"1.0","type":"link"}