{"product_id":"harvia-wood-burning-sauna-heater","title":"Harvia Wood-Burning Sauna Heater","description":"\u003cp\u003e\u003cstrong\u003eComplete bundle\u003c\/strong\u003e — each Harvia wood-burning heater ships with sauna stones and a chimney kit. Select the output that matches your barrel's specification — shown on the sauna product page.\u003c\/p\u003e\u003ch3\u003eHarvia M3 Steel — 16.5 kW\u003c\/h3\u003e\u003cp\u003eThe world's best-selling wood-burning sauna stove, refined in Finland over decades. Classic cylindrical steel body in graphite black, with a tempered glass door so the fire becomes part of the sauna atmosphere. Stone capacity approximately 30 kg (4–8 cm diameter). 115 mm flue connection, adjustable feet, integrated ash box. CE certified to EN 15821:2010.\u003c\/p\u003e\u003ch3\u003eHarvia 20 PRO Steel — 24 kW\u003c\/h3\u003e\u003cp\u003eHarvia's most powerful home sauna heater — built for large barrel saunas up to 20 m³. Features a robust 10 mm thick fire chamber, cast-iron-framed glass door, and a 40 kg stone compartment for heavy, sustained heat. Dimensions 760 × 430 × 510 mm (H × W × D), net weight 58 kg. Top or rear flue connection for flexible installation.\u003c\/p\u003e\u003cp\u003eNo electrical connection required. Flue installation must comply with local fire and building regulations. Professional installation (EUR 180) can be arranged — contact us before ordering to include it.\u003c\/p\u003e\u003cp\u003eThis heater is added to your cart as a separate line item alongside your sauna order.\u003c\/p\u003e","brand":"Harvia","offers":[{"title":"Harvia M3 16 kW Steel","offer_id":55074580103510,"sku":"HTR-HARVIA-M316","price":1510.0,"currency_code":"EUR","in_stock":true},{"title":"Harvia 20 PRO 24 kW Steel","offer_id":55074580136278,"sku":"HTR-HARVIA-20PRO24","price":1770.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/5620\/4374\/files\/Harvia-M3-Wood-Burning-Stove.jpg?v=1787601075","url":"https:\/\/www.veldorahaven.com\/products\/harvia-wood-burning-sauna-heater","provider":"Veldora Haven","version":"1.0","type":"link"}