{"product_id":"harvia-linear-22-greenflame-linear-series-15-7-kw-wood-sauna-stove","title":"Harvia Linear 22 GreenFlame Linear Series, 15.7 kW Wood Sauna Stove","description":"\u003c!-- Harvia Linear 22 GreenFlame - Linear Series Wood-Burning Sauna Stove - WKLI20GM --\u003e\u003c!-- SKU: WKLI20GM | Linear Series | 318-636 cu ft | Floor-mounted wood-burning --\u003e\u003c!-- Model: LINEAR 22 GREENFLAME | 15.7kW | Matte black steel --\u003e\u003c!-- GreenFlame technology: 20% lower particulate emissions \/ 70% lower CO emissions --\u003e\u003c!-- 90% larger glass door than standard Linear - highlights fire beautifully --\u003e\u003c!-- Replaceable internals (flame guide panels at sides and back) - long service life --\u003e\u003c!-- Linear protective walls for flexible installation in smaller spaces --\u003e\u003c!-- Adjustable frame legs for stability --\u003e\u003c!-- 88.2 lbs AC3020 stones (2 boxes, 10-15 cm) required - sold separately --\u003e\u003c!-- Top or back flue connection | 115mm (4.5\") - 6\" adapter required for North America --\u003e\u003c!-- Safety distances combustible: front 19.69\" \/ sides 15.75\" \/ back 14.96\" \/ ceiling 4.15 ft --\u003e\u003c!-- Safety distances non-combustible: sides 3.94\" \/ back 3.94\" \/ front 19.69\" --\u003e\u003c!-- Optional: WL585 protective sheath | WL100 floor bedding | Pipe-model water heater --\u003e\u003c!-- Dimensions: 17.72\"W x 20.08\"D x 30.31\"H | Net weight: 145.5 lbs | Gross: 152.1 lbs --\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: IOM | Data Sheet | Declaration of Performance | Stone Requirements --\u003e\n\u003cstyle\u003e\n  .gf { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 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}\n    .gf-divider { margin: 1.25rem 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"gf\"\u003e\n\u003cdiv class=\"gf-desc\"\u003e\n\u003ch2\u003eHarvia Linear 22 GreenFlame Linear Series, 15.7 kW Wood Sauna Stove\u003c\/h2\u003e\n\u003cp\u003eThe Harvia Linear 22 GreenFlame is a 15.7kW floor-mounted wood-burning sauna stove for rooms from 318 to 636 cubic feet, built around Harvia's GreenFlame fire chamber - an updated combustion system designed for clean, controlled burning. Compared to standard wood-burning stoves of the same output class, the GreenFlame fire chamber reduces particulate emissions by 20% and carbon monoxide emissions by 70%, making it one of the most environmentally responsible wood-burning sauna stoves in the Harvia lineup. The matte black body with a 90% larger glass door than the standard Linear creates an expansive view of the fire inside the sauna - Harvia describes the atmosphere as wonderful, with the fire highlighted beautifully through the large glass. The replaceable internal components (flame guide panels at sides and back) are designed to be swapped out at the end of their service life, extending the stove's operational lifespan. 88.2 lbs of AC3020 stones (2 boxes, 10-15 cm) are required and sold separately. Flue: 115mm (4.5\") European standard - a 6\" North American adapter is required and sold separately. Pallet delivery - scheduled freight required. CE and EAC certified. Made in Finland by Harvia.\u003c\/p\u003e\n\u003ch4\u003eGreenFlame technology - 20% lower particles, 70% lower carbon monoxide\u003c\/h4\u003e\n\u003cp\u003eHarvia's GreenFlame fire chamber is described as pioneering quality in sauna heater technology - a complete redesign of the combustion system inside the stove, not a filter or aftertreatment. The fire chamber is engineered for the perfect flow of air and retention of heat, producing a burn that is measurably cleaner than conventional sauna stove fire chambers. The 20% reduction in particulate emissions and 70% reduction in carbon monoxide are measured against a conventional Harvia stove of the same output class - not against a general average. Harvia connects the GreenFlame development directly to a long-term company goal of cutting small particle emissions from wood-burning stoves in half. Controlled combustion also has practical benefits beyond emissions: the GreenFlame fire burns more completely, producing less soot on the glass door (maintaining the fire view throughout the session), generating less creosote in the flue (reducing chimney maintenance frequency), and creating a more stable, predictable burn throughout the session.\u003c\/p\u003e\n\u003ch4\u003e90% larger glass door - the fire as a feature of the sauna room\u003c\/h4\u003e\n\u003cp\u003eThe Linear 22 GreenFlame's glass door is 90% larger than the standard Linear design. This is not an incremental change - it fundamentally alters the visual experience inside the sauna room. The fire becomes a focal point rather than a background detail: visible, warm, and central to the sauna atmosphere from anywhere in the room. The clean-burning GreenFlame fire chamber also keeps the glass cleaner through the session, since more complete combustion produces less soot that would otherwise deposit on the glass. The matte black body and elegant Linear design frame the large glass door in a way that Harvia describes as creating a modern look in the sauna. Harvia's own commercial partners have highlighted the large door specifically as a primary reason for choosing the Linear 22 GreenFlame - quoting that the larger door creates an inviting glow from the heater that enhances the sauna experience.\u003c\/p\u003e\n\u003ch4\u003eReplaceable internals, linear protective walls, and adjustable legs\u003c\/h4\u003e\n\u003cp\u003eThe Linear 22 GreenFlame is built for a long operational lifespan. The flame guide panels at the sides and back of the fire chamber - the components most exposed to combustion heat - are designed to be individually replaced when they reach the end of their service life, without replacing the entire stove body. The external Linear protective walls can be installed to reduce safety clearances in installations where the standard distances constrain bench placement or room layout. Adjustable frame legs facilitate levelling on any floor surface and ensure stability during operation. Top and back flue connection options accommodate different chimney routing requirements. The WL585 protective sheath (sold separately) is the model-specific accessory for the Linear GreenFlame and includes knock-out holes for optional water spout integration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-hook\"\u003e15.7kW wood-burning sauna stove for rooms from 318 to 636 cubic feet. Linear Series with GreenFlame technology: 20% lower particulate emissions and 70% lower carbon monoxide emissions vs standard models. 90% larger glass door than standard Linear - clean fire view throughout the session. Matte black. Replaceable internals (flame guide panels) for extended service life. Linear protective walls for flexible installation. Adjustable frame legs. No electricity required. 88.2 lbs AC3020 stones required (2 boxes, 10-15 cm, sold separately). Safety distances: front 19.69\", sides 15.75\", back 14.96\" (combustible). Ceiling clearance 4.15 ft. Top or back flue connection. 115mm flue - 6\" adapter required for North America (sold separately). Dimensions: 17.72\"W x 20.08\"D x 30.31\"H. Optional: WL585 protective sheath. Pallet delivery - scheduled freight required. 2-year warranty (consumer). CE and EAC certified. Made in Finland by Harvia.\u003c\/div\u003e\n\u003cdiv class=\"gf-badges\"\u003e\n\u003cspan class=\"gf-badge\"\u003e15.7 kW\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e318 to 636 cu ft\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eGreenFlame technology - clean-burn fire chamber\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e20% lower particulate emissions vs standard\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e70% lower carbon monoxide vs standard\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e90% larger glass door than standard Linear\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eMatte black - modern Linear design\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eReplaceable internals - extended service life\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eLinear protective walls for flexible installation\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eAdjustable frame legs\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eWood-burning - no electricity required\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e88.2 lbs AC3020 stones required (2 boxes, 10-15 cm)\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eSafety: front 19.69\", sides 15.75\", back 14.96\"\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eTop or back flue connection\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e115mm flue - 6\" adapter required for North America\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e17.72\"W x 20.08\"D x 30.31\"H\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eWL585 protective sheath compatible\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003ePallet delivery required\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003e2-year warranty (consumer)\u003c\/span\u003e \u003cspan class=\"gf-badge\"\u003eCE and EAC certified - made in Finland\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-notice-yellow\"\u003e⚠️ \u003cstrong\u003e88.2 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\" 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 145.5 lbs net weight, plan for on-site assistance to move the stove from the pallet delivery point to its installation position. A licensed chimney professional is recommended for all flue installations.\u003c\/div\u003e\n\u003cdiv class=\"gf-notice\"\u003eℹ️ \u003cstrong\u003eLinear 22 GreenFlame vs Linear 22 GreenFlame LS \/ RS \/ ES - standard vs water tank configurations.\u003c\/strong\u003e Linear 22 GreenFlame WKLI20GM (this listing): standard configuration - no integrated water tank, interior-feed firebox, wood loaded from inside the sauna. Linear 22 GreenFlame LS WKLI22GLSM: same 15.7kW GreenFlame stove with 30-litre left-side water tank. Linear 22 GreenFlame RS WKLI20GRSM: 30-litre right-side water tank. Linear 22 GreenFlame ES WKLI20GESM: 20-litre front water tank. All four share identical output (15.7kW), room range (318-636 cu ft), GreenFlame fire chamber, 88.2-lb stone requirement, and Linear platform. Choose the standard WKLI20GM when no integrated hot water tank is needed. Choose the LS, RS, or ES variants for installations where simultaneous sauna heating and water heating from a single stove is the goal.\u003c\/div\u003e\n\u003chr class=\"gf-divider\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"gf-spec-grid\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003ePerformance\u003c\/h4\u003e\n\u003ctable class=\"gf-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e15.7 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\u003e318 to 636 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e88.2 lbs \/ 40 kg (2 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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003eGreenFlame vs standard models\u003c\/h4\u003e\n\u003ctable class=\"gf-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticulate emissions\u003c\/td\u003e\n\u003ctd\u003e20% lower than a standard heater of the same output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon monoxide (CO) emissions\u003c\/td\u003e\n\u003ctd\u003e70% lower than a standard heater of the same output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass door size\u003c\/td\u003e\n\u003ctd\u003e90% larger than standard Linear glass door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombustion control\u003c\/td\u003e\n\u003ctd\u003eGreenFlame fire chamber - optimised airflow for clean burn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoot on glass\u003c\/td\u003e\n\u003ctd\u003eMinimal - clean burn reduces glass soot deposit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003eSafety distances (combustible materials)\u003c\/h4\u003e\n\u003ctable class=\"gf-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003e19.69 in (500 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSides (left and right)\u003c\/td\u003e\n\u003ctd\u003e15.75 in (400 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack\u003c\/td\u003e\n\u003ctd\u003e14.96 in (380 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeiling clearance\u003c\/td\u003e\n\u003ctd\u003e4.15 ft (1,265 mm) above stove top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide \/ back (non-combustible)\u003c\/td\u003e\n\u003ctd\u003e3.94 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront (non-combustible)\u003c\/td\u003e\n\u003ctd\u003e19.69 in (500 mm)\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\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003ePhysical dimensions\u003c\/h4\u003e\n\u003ctable class=\"gf-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e17.72 in (450 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e20.08 in (510 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e30.31 in (770 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (stove only)\u003c\/td\u003e\n\u003ctd\u003e145.5 lbs (66.0 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross weight (packaged)\u003c\/td\u003e\n\u003ctd\u003e152.1 lbs (69.0 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage height\u003c\/td\u003e\n\u003ctd\u003e30.91 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage width\u003c\/td\u003e\n\u003ctd\u003e20.28 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage depth\u003c\/td\u003e\n\u003ctd\u003e18.11 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003eConstruction and finish\u003c\/h4\u003e\n\u003ctable class=\"gf-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eMatte black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass door\u003c\/td\u003e\n\u003ctd\u003eLarge - 90% larger than standard Linear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaceable internals\u003c\/td\u003e\n\u003ctd\u003eFlame guide panels (sides and back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective walls\u003c\/td\u003e\n\u003ctd\u003eLinear protective walls included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegs\u003c\/td\u003e\n\u003ctd\u003eAdjustable frame legs\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003eFlue and certifications\u003c\/h4\u003e\n\u003ctable class=\"gf-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\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\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\u003cdiv class=\"gf-spec-block\"\u003e\n\u003ch4\u003eOptional accessories (sold separately)\u003c\/h4\u003e\n\u003ctable class=\"gf-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 sheath\u003c\/td\u003e\n\u003ctd\u003eHarvia WL585 (Linear GreenFlame specific - water spout knock-out)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloor bedding\u003c\/td\u003e\n\u003ctd\u003eHarvia WL100 (aluminium-zinc coated steel, black)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe-model water heater\u003c\/td\u003e\n\u003ctd\u003eCompatible - chimney-mounted (sold separately)\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"gf-divider\"\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"gf-inc-grid\"\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eHarvia Linear 22 GreenFlame 15.7kW wood-burning sauna stove\u003c\/div\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eLarge glass door\u003c\/div\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eFastening kit\u003c\/div\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eLinear protective walls\u003c\/div\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eAdjustable frame legs\u003c\/div\u003e\n\u003cdiv class=\"gf-inc-item\"\u003eInstallation and operating instructions\u003c\/div\u003e\n\u003cdiv class=\"gf-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 88.2 lbs AC3020 stones - 2 boxes, 10-15 cm (additional box recommended); 6\" North American flue adapter (Harvia WZ115155). \u003cstrong\u003eOptional accessories (sold separately):\u003c\/strong\u003e WL585 protective sheath (Linear GreenFlame specific); WL100 floor bedding; pipe-model chimney water heater; Harvia WHP1500 \/ WHP1500M chimney kit. A licensed chimney professional is recommended for all flue installations.\u003c\/p\u003e\n\u003chr class=\"gf-divider\"\u003e\n\u003ch3\u003eWhy the Harvia Linear 22 GreenFlame stands out\u003c\/h3\u003e\n\u003cdiv class=\"gf-feat-grid\"\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003eGreenFlame fire chamber - 20% lower particles, 70% lower CO\u003c\/div\u003e\n\u003cp\u003eThe GreenFlame fire chamber is not a filter added to an existing design - it is a completely redesigned combustion system built from the ground up for clean burning. Harvia engineered the airflow pattern and heat retention characteristics of the fire chamber specifically to achieve complete combustion of wood gases and particles before they leave the fire chamber. The results are measured: 20% lower particulate emissions and 70% lower carbon monoxide output compared to a conventional Harvia stove of the same 15.7kW output class. This is part of Harvia's long-term development commitment to cutting small particle emissions from wood-burning heaters in half. Controlled combustion also means less soot on the glass, less creosote in the flue, and a more stable burn throughout the session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003e90% larger glass door - the fire as a sauna feature\u003c\/div\u003e\n\u003cp\u003eThe glass door on the Linear 22 GreenFlame is 90% larger than the door on the standard Linear design. This fundamentally alters the visual experience inside the sauna room. The fire becomes a focal point rather than a background detail - visible, warm, and central to the atmosphere from anywhere in the room. The clean-burning GreenFlame fire chamber also keeps soot off the glass during the session, maintaining a clear fire view throughout rather than clouding over as the session progresses. Harvia commercial partners have highlighted the large door specifically: the inviting glow from the heater enhances the sauna experience - a quality that only a wood fire behind a large glass can produce.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003eReplaceable flame guide panels - decades of service\u003c\/div\u003e\n\u003cp\u003eThe flame guide panels at the sides and back of the fire chamber are the components most exposed to combustion heat. Harvia designed them as individually replaceable parts - when a panel reaches the end of its service life, it can be swapped out without replacing the entire stove body. This serviceability extends the effective operational lifespan well beyond what would be possible if the fire chamber were a single non-serviceable unit. For a stove at this investment level expected to serve a sauna for decades, designed-in replaceability is a meaningful long-term ownership advantage. Spare parts are available through Harvia's authorized dealer network.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003eLinear protective walls - flexible installation\u003c\/div\u003e\n\u003cp\u003eThe Linear 22 GreenFlame includes Linear protective walls that can be installed around the stove body to reduce the safety clearances to combustible materials. Without the walls, clearances are 19.69\" at the front, 15.75\" at the sides, and 14.96\" at the back. With the protective walls installed, the side and back clearances reduce to the non-combustible material distances of 3.94\". For a sauna room in the 318-636 cu ft range where bench placement relative to the stove is important, the protective walls directly expand the usable bench area available. The WL585 model-specific protective sheath (sold separately) provides further clearance reduction and includes knock-out holes for optional water spout routing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003e15.7kW for 318-636 cu ft - even heat, efficient air circulation\u003c\/div\u003e\n\u003cp\u003eAt 15.7kW for rooms from 318 to 636 cu ft, the Linear 22 GreenFlame covers the full medium home sauna range. Harvia notes that the stones heat the entire sauna quickly, offering enough heat for even the most demanding sauna bathers. The GreenFlame fire burns cleanly and stably, producing reliable heat output through the session. The 88.2-lb stone load accumulates thermal energy during the fire and releases soft, consistent steam when water is thrown. Water heater integration is available through the LS, RS, and ES variants if simultaneous sauna and water heating is needed alongside the standard configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-feat\"\u003e\n\u003cdiv class=\"gf-feat-title\"\u003eLinear Series platform - GreenFlame and related models\u003c\/div\u003e\n\u003cp\u003eThe WKLI20GM is the standard (no water tank) configuration of the Linear 22 GreenFlame platform. The same 15.7kW GreenFlame platform is available with 30-litre left-side tank (LS, WKLI22GLSM), 30-litre right-side tank (RS, WKLI20GRSM), and 20-litre front tank (ES, WKLI20GESM). The Linear Series also includes the standard (non-GreenFlame) Linear 16 for buyers where the GreenFlame emissions technology is not required. All Linear stoves are designed for heat-insulated Harvia WHP chimney pipes and are CE and EAC certified. 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=\"gf-divider\"\u003e\n\u003ch3\u003eAbout Harvia\u003c\/h3\u003e\n\u003cdiv class=\"gf-brand1\" style=\"text-align: start;\"\u003e\n\u003cimg alt=\"Harvia Linear 22 GreenFlame WKLI20GM 15.7kW wood-burning sauna stove matte black large glass door 318-636 cu ft\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/harvia-sauna-stove-harvia-linear-22-greenflame-wood-burning-sauna-stove-1182037382.jpg?v=1781245646\u0026amp;width=800\" class=\"gf-brand-img\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"gf-brand-tag\"\u003eMade in Finland - CE Certified - Linear Series - GreenFlame Technology\u003c\/span\u003e\n\u003ch4\u003eHarvia Linear 22 GreenFlame. 15.7kW. 318-636 cu ft. 20% lower particles. 70% lower CO. 90% larger glass door.\u003c\/h4\u003e\n\u003cp\u003eHarvia is a Finnish sauna and spa company established in 1950. The Linear 22 GreenFlame is Harvia's clean-burn wood-burning stove for medium saunas - a fully redesigned GreenFlame fire chamber delivering 20% lower particulate emissions and 70% lower carbon monoxide, a 90% larger glass door, replaceable flame guide panels for extended service life, and the matte black Linear design. 88.2 lbs 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=\"gf-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e15.7kW wood-burning\u003c\/strong\u003e - 318-636 cu ft - GreenFlame clean-burn fire chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20% lower particulate emissions - 70% lower CO\u003c\/strong\u003e vs standard models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90% larger glass door\u003c\/strong\u003e - matte black - replaceable flame guide panels\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSafety distances: front 19.69\", sides 15.75\", back 14.96\"\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88.2 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 style=\"text-align: start;\" class=\"gf-brand2\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"gf-brand-tag\"\u003eLinear 22 GreenFlame vs PRO 20 vs Legend 150 SL - medium sauna stove comparison\u003c\/span\u003e\n\u003ch4\u003eLinear 22 GreenFlame vs PRO 20 vs Legend 150 SL - choosing the right stove for 318-636 cu ft\u003c\/h4\u003e\n\u003cp\u003eThree stoves serve the 318-636 cu ft medium sauna range. PRO 20 WKPR20M: 24.1kW, 283-706 cu ft, graphite black with stainless steel front, cast-iron glass hatch, 88 lbs stones (2 boxes AC3020), safety clearances 4\" sides \/ 4\" back \/ 12\" front. Higher output, tighter clearances. Right choice for vigorous high-output sauna bathing where maximum heat intensity is the priority. Linear 22 GreenFlame WKLI20GM (this listing): 15.7kW, 318-636 cu ft, GreenFlame clean-burn fire chamber, 90% larger glass door, 88.2 lbs stones (2 boxes AC3020), clearances 15.75\" sides \/ 14.96\" back \/ 19.69\" front (reduces with protective walls). Right choice when lower emissions, the large glass door aesthetic, and the replaceable-internals serviceability of the Linear platform are the priority. Legend 150 SL WK150LDSL: 16kW, 212-459 cu ft, exterior feed through wall, 264 lbs stones (6 boxes AC3020), fireplace view in adjacent room. Right choice for exterior wood loading and the dual-room fireplace experience in the smaller 212-459 cu ft range. Choose the Linear 22 GreenFlame for the 318-636 cu ft range where GreenFlame clean-burn technology, the large glass door, and Linear Series design are the right specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Harvia Linear 22 GreenFlame vs PRO 20 vs Legend 150 SL medium sauna wood stove comparison\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/harvia-sauna-stove-harvia-linear-16-wk160c-wood-burning-sauna-stove-1182030513_8bc2d213-2af0-4557-952c-f71488ef46d7.jpg?v=1781246213\u0026amp;width=800\" class=\"gf-brand-img\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"gf-divider\"\u003e\n\u003ch3\u003eManuals and Documents\u003c\/h3\u003e\n\u003cdiv class=\"gf-manual\"\u003e\n\u003cdiv class=\"gf-manual-item\"\u003e\n\u003ch6\u003eInstallation and Operation Manual\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-06\/Harvia-Linear-22-GreenFlame-Sauna-Heater-IOM.pdf\" class=\"gf-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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=\"gf-manual-item\"\u003e\n\u003ch6\u003eData Sheet\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-06\/Harvia-WKLI20GM-Sauna-Heater-Data-Sheet.pdf\" class=\"gf-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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=\"gf-manual-item\"\u003e\n\u003ch6\u003eDeclaration of Performance\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2022-10\/Harvia_woodburning_stoves_DOP_1.pdf\" class=\"gf-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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=\"gf-manual-item\"\u003e\n\u003ch6\u003eStone Requirements\u003c\/h6\u003e\n\u003ca href=\"https:\/\/prod-cms.bathingbrands.com\/sites\/default\/files\/2026-02\/Harvia%20Stone%20Requirements%2002.27.25.pdf\" class=\"gf-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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=\"gf-warranty\"\u003e\n\u003ch5\u003e2-year limited warranty (consumer use)\u003c\/h5\u003e\n\u003cp\u003eThe Harvia Linear 22 GreenFlame 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 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":52345283182874,"sku":"WKLI20GM","price":1534.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/harvia-sauna-stove-harvia-linear-22-greenflame-wood-burning-sauna-stove-1182037382.jpg?v=1781245646","url":"https:\/\/mediriser.com\/products\/harvia-linear-22-greenflame-linear-series-15-7-kw-wood-sauna-stove","provider":"Mediriser","version":"1.0","type":"link"}