{"product_id":"harvia-m3-sl-wood-burning-sauna-stove","title":"Harvia M3 SL 16.5kW Wood-Burning Sauna Stove","description":"\u003cp\u003eThe \u003cstrong\u003eHarvia M3 SL\u003c\/strong\u003e is a dual-purpose, Finnish-engineered wood stove that heats your sauna while serving as a fireplace from the adjoining room. With a \u003cstrong\u003e16.5 kW\u003c\/strong\u003e output, cast-iron framed glass door, and exterior firewood feed, it delivers rich, enveloping löyly in compact to medium spaces—without disturbing the sauna atmosphere.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16.5 kW wood-burning heater with exterior firewood feed:\u003c\/strong\u003e Load from outside the sauna for uninterrupted heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeats two areas:\u003c\/strong\u003e Functions as a sauna heater and a fireplace from the adjacent room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast-iron framed glass door:\u003c\/strong\u003e Durable construction with a warm fire view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloor-mounted with adjustable legs:\u003c\/strong\u003e Easy leveling and secure placement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal room size:\u003c\/strong\u003e For saunas \u003cstrong\u003e212–459 cu ft\u003c\/strong\u003e (adjusted volume).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElegant black steel finish:\u003c\/strong\u003e Robust steel body designed in Finland.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE \/ EAC certified:\u003c\/strong\u003e Meets recognized safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRequired Components\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSauna Stones:\u003c\/strong\u003e Minimum \u003cstrong\u003e66 lbs\u003c\/strong\u003e (2 boxes of Harvia AC3020). \u003cem\u003ePro tip:\u003c\/em\u003e buy an extra box—natural stones vary in size\/shape; more options help optimize airflow and steam quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChimney \/ venting system:\u003c\/strong\u003e Code-compliant flue and clearances per the installation manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarvia M3 SL\u003c\/strong\u003e Wood-Burning Sauna Stove\u003c\/li\u003e\n\u003cli\u003eStove door \u0026amp; ash box\u003c\/li\u003e\n\u003cli\u003eFire chamber extension (exterior feed)\u003c\/li\u003e\n\u003cli\u003eInstallation \u0026amp; Operation Manual\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2-Year Limited Consumer Warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHarvia WKM3SL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16.5 kW (wood-burning)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSauna Room Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e212–459 cu ft (adjusted volume)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStone Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e66 lbs (30 kg), stones sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (W × D × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15.3″ × 25″ × 28″ (390 × 640 × 715 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight (Net)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e99 lbs (45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLog Feed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMax length 350 mm; Ø 80–150 mm logs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFinish \/ Body\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBlack steel; cast-iron framed glass door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCE \/ EAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDesigned, engineered, and made in Finland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background-color: #e6ffea; padding: 15px; border-radius: 8px; margin-top: 20px;\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Stack split-face stones loosely—larger pieces in the center, smaller on the edges—to keep airflow open and steam soft. The exterior feed lets you top up the fire without entering the sauna, keeping the heat steady for uninterrupted relaxation.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/Harvia_Warranty_1.pdf?v=1755983922\"\u003eWarranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/Harvia_M3_SL_Technical_Data_Sheet.pdf?v=1755984149\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/Harvia_Linear_22_Green_Flame_IOM_c95e28f9-243d-40e9-b759-484f82663526.pdf?v=1755983284\"\u003eInstallation and Operation Manual\u003c\/a\u003e \u003c\/p\u003e","brand":"Your Spa Pool","offers":[{"title":"Default Title","offer_id":53834082877773,"sku":null,"price":1416.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/1990\/9197\/files\/harvia-m3-sl-wood-burning-sauna-stove-angled-view.png?v=1777941734","url":"https:\/\/yourspapool.com\/products\/harvia-m3-sl-wood-burning-sauna-stove","provider":"Your Spa Pool","version":"1.0","type":"link"}