{"product_id":"k12-5g-club-series-12-5kw-stainless-steel-sauna-heater","title":"K12.5G Club Series 12.5kW Stainless Steel Sauna Heater at 240V 1PH","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eThe Harvia Club K12.5G is a premium 12.5 kW electric sauna heater engineered for continuous daily use – an ideal choice for health clubs, day spas, hotels, and large luxury home saunas that demand top-tier performance. This heavy-duty \u003cem\u003ecommercial electric sauna heater\u003c\/em\u003e effortlessly bathes rooms up to 742 cu. ft. in intense, pleasant heat from morning till night, providing an authentic Finnish sauna experience with soothing steam. Built with a robust stainless-steel exterior and dual-wall construction, the K12.5G delivers both power and reliability. Dual voltage flexibility (240 V single-phase or 208 V 3‑phase) gives you installation options, making this unit as suitable for a home spa retreat as it is for a busy gym – truly the ultimate upgrade for your traditional sauna.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003ePowerful 12.5 kW Output:\u003c\/strong\u003e High-performance heating capacity quickly raises temperatures in sauna rooms from \u003cem\u003e494 to 742 cu. ft.\u003c\/em\u003e, making it perfect for large residential suites and commercial facilities alike (spa, hotel, or club sauna).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eHeavy-Duty Continuous Use:\u003c\/strong\u003e Industrial-grade components allow round-the-clock operation – this floor-standing unit is built to run from morning till night without skipping a beat, ideal for high-traffic \u003cem\u003ehome or commercial sauna\u003c\/em\u003e environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003ePremium Stainless Steel Build:\u003c\/strong\u003e Deluxe stainless steel interior and exterior resist corrosion and wear. The multi-layer construction keeps the outer surface cooler to the touch for added safety and comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eLarge 132 lb Rock Capacity:\u003c\/strong\u003e Accommodates about 3 boxes of sauna stones, which sit in direct contact with the heating elements. This design “softens” the heat by filtering it through the rocks – ensuring a consistent, gentle steam \u003cem\u003elöyly\u003c\/em\u003e and even heat distribution for bathers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eDual Voltage Flexibility:\u003c\/strong\u003e Supports both 240 V\/1‑phase (home use) and 208 V\/3‑phase (commercial 3‑phase sauna unit) configurations. This versatility means the K12.5G can be installed in a traditional home sauna on a single-phase 240 V circuit or in a large commercial sauna with a 208 V 3‑phase supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eOptional Digital Control:\u003c\/strong\u003e Pairs with an external Harvia Xenio control (sold separately) for convenient operation. Enjoy easy adjustments of temperature and session time with a modern digital controller mounted outside the sauna – allowing you to customize your sauna experience effortlessly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eSafety \u0026amp; Certifications:\u003c\/strong\u003e Designed with an integrated overheat protector and cooler outer shell for safe use in public settings. The Harvia K12.5G is **UL listed** and **ETL certified**, meeting strict electrical safety standards for indoor sauna heaters in the US and Canada.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eAuthentic Finnish Craftsmanship:\u003c\/strong\u003e Part of Harvia’s renowned Club Series, the K12.5G is designed and manufactured in Finland, reflecting over 60 years of sauna expertise. Its exceptional build quality and reliability ensure years of luxurious sauna enjoyment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; min-width: 560px; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 12px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 12px; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHarvia Club K12.5G (Club Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003ePower Rating\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e12.5 kilowatts (electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eSauna Room Size\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e494 to 742 cubic feet (14 m\u003csup\u003e3\u003c\/sup\u003e – 21 m\u003csup\u003e3\u003c\/sup\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eElectrical Requirements\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e240 V AC, 1‑phase (52.7 A draw – requires two dedicated circuits); or 208 V AC, 3‑phase (34.1 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFloor-mounted unit (hard-wired connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e19.9″ W × 16.9″ D × 27.6″ H (505 × 429 × 701 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eHeater Weight\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e60 lbs (27 kg) empty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eStone Capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e132 lbs of sauna stones (stones sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eConstruction Materials\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless steel inner tank and outer shell, industrial-grade heating elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eSafety Features\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eOverheat shutoff sensor, dual-wall insulation for cooler surface temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eCertifications\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUL listed \u0026amp; ETL certified (CSA standard compliant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eWarranty\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2-year limited (consumer use) \/ 1-year (commercial use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eHarvia K12.5G Heater Unit:\u003c\/strong\u003e 12.5 kW Club Series electric sauna heater (floor-standing model), finished in stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eInstallation \u0026amp; Operation Manual:\u003c\/strong\u003e Detailed owner’s manual with sauna heater installation instructions, wiring requirements, and safety guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eWarranty Documents:\u003c\/strong\u003e Official Harvia limited warranty certificate (2 years residential coverage)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eControl Unit (Sold Separately):\u003c\/strong\u003e An external digital control is required for operation. The Harvia Xenio CX170 control panel (with timer\/thermostat) is recommended to turn the heater on\/off, set temperature, and manage heating cycles. \u003cem\u003e(Note: Control unit and any necessary relay box are purchased separately.)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eSauna Stones:\u003c\/strong\u003e Approximately 132 lbs of **high-quality sauna stones** (3 boxes of Harvia stones, 5–10 cm size) are needed to fill the heater. Stones ensure proper heat distribution and steam – never operate the K12.5G without fully loading the heater with stones. *(Stones sold separately.)*\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e The K12.5G must be hard-wired to a dedicated circuit by a licensed electrician. For 240 V setups, two separate feed circuits are required due to the high amperage. Always follow local electrical codes and the included manual when installing this unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eMounting Requirements:\u003c\/strong\u003e This is a free-standing floor model sauna heater. Install on a level surface capable of supporting the heater and stones (total ~192 lbs when filled). Maintain proper clearances from walls and benches as specified in the manual to allow safe airflow and prevent heat damage to surrounding materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eHeater Guard:\u003c\/strong\u003e For safety, a wooden heater guard rail (fence) around the unit is highly recommended, especially in commercial settings or family saunas. The guard prevents accidental contact with the hot heater surface while still allowing sufficient air circulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eOperation Safety:\u003c\/strong\u003e Always fill with the required stones before use and keep them stacked per the instructions (do not cover the heating elements completely – leave gaps for airflow). The heater features an internal high-temperature cutoff to prevent overheating. Users should never pour water directly on the heating elements (only on the stones) and should adhere to recommended session durations. Ensure proper ventilation in the sauna room for safe oxygen levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"margin-bottom: 14px;\"\u003e\n\u003cstrong\u003eUsage Guidelines:\u003c\/strong\u003e Maximum operating temperature is typically 180–195 °F. Always supervise children or inexperienced users in the sauna. After each use, allow the heater to cool down and inspect stones periodically (replace any that are crumbling to maintain heater performance and safety).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOperation and Usage\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eOperate the sauna only as directed in its model-specific manual. Keep combustible items clear of hot surfaces, supervise children, and stop use if the unit is damaged or you feel unwell. Sauna bathing involves heat exposure and dehydration risk; ask a healthcare professional if a condition or medication may affect heat tolerance.\u003c\/p\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":47123382403292,"sku":"HRKGU1224C","price":2086.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/7948\/7708\/files\/k10g-club-series-silver-stainless-sauna-heater-stone-top.jpg?v=1794118024","url":"https:\/\/saunaluxuries.com\/products\/k12-5g-club-series-12-5kw-stainless-steel-sauna-heater","provider":"Sauna Luxuries","version":"1.0","type":"link"}