{"product_id":"harvia-spirit-sp90e-spirit-series-9kw-sauna-heater-black","title":"Harvia Spirit SP90E Spirit Series 9kW Sauna Heater, Black","description":"\u003c!-- Harvia Spirit SP90E - 9kW Sauna Heater, Black --\u003e\u003c!-- Wall-mounted | 240V\/1PH | 177-494 cu ft | Heater only (control \u0026 stones sold separately) | No em dashes --\u003e\u003c!-- HSPE90U1M --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a2a3a; max-width: 900px; margin: 0 auto; line-height: 1.6; }\n  .sl * { box-sizing: border-box; }\n  .sl h4 { font-weight: 700 !important; color: #0f172a !important; margin: 1.5rem 0 0.5rem; line-height: 1.3; }\n  .sl h5 { font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.5rem; line-height: 1.3; }\n  .sl-hook { font-weight: 500 !important; line-height: 1.75 !important; color: #0f172a !important; padding: 1.1rem 1.4rem; background: #e8f0fa; border-left: 3px solid #2563a8; border-radius: 0 6px 6px 0; margin: 1.5rem 0; }\n  .sl-badges { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 1.75rem; }\n  .sl-badge { background: #e8f0fa; color: #2563a8; font-size: 12px; font-weight: 600; padding: 5px 11px; border-radius: 4px; border: 1px solid #bfd4ef; white-space: nowrap; }\n  .sl-desc p { font-weight: 500 !important; line-height: 1.75 !important; color: #0f172a !important; margin: 0 0 1rem; }\n  .sl-desc p:last-child { margin: 0; }\n  .sl-spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }\n  .sl-spec-table tr:nth-child(odd) { background: #f8fafc; }\n  .sl-spec-table td { padding: 9px 12px; border: 1px solid #e2e8f0; vertical-align: top; }\n  .sl-spec-table td:first-child { color: #64748b; width: 52%; }\n  .sl-spec-table td:last-child { font-weight: 700 !important; color: #0f172a !important; }\n  .sl-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }\n  .sl-spec-tables { min-width: 0; }\n  .sl-spec-image { min-width: 0; 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line-height: 1.3; }\n  .sl-feat-title::before { content: \"\"; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #2563a8; flex-shrink: 0; }\n  .sl-feat p { font-weight: 500 !important; color: #0f172a !important; line-height: 1.6 !important; margin: 0; font-size: 14px; }\n  .sl-brand1, .sl-brand2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; padding: 1.5rem 0; }\n  .sl-brand-img { width: 100%; height: auto; border-radius: 8px; display: block; }\n  .sl-brand-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: #2563a8; background: #e8f0fa; border: 1px solid #bfd4ef; border-radius: 4px; padding: 4px 10px; margin-bottom: 0.75rem; }\n  .sl-brand1 h4, .sl-brand2 h4 { font-size: 22px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.75rem; line-height: 1.3 !important; }\n  .sl-brand1 p, .sl-brand2 p { font-weight: 500 !important; 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}\n  .sl-warranty p { font-weight: 500 !important; color: #0f172a !important; line-height: 1.7 !important; margin: 0; }\n  .sl-manual { background: #fff; border: 1px solid #e2e8f0; border-radius: 6px; 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\u003c!-- INTRO --\u003e\n\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eHarvia Spirit SP90E 9kW Sauna Heater, Black\u003c\/h2\u003e\n\u003cp\u003eThe Harvia Spirit SP90E is the highest-output model in the Spirit lineup, a 9kW black open-cage wall-mounted sauna heater covering rooms from 177 to 494 cubic feet. It brings the full Spirit design, the elegantly curved black steel frame, the fully visible stone cage, the dual safety interlocks, the ventilation ducts, and the 110-lb stone capacity, to the largest room range the Spirit series serves. At 9kW on a 50A circuit, the SP90E heats rooms that the SP80E (8kW, 40A) cannot adequately serve, and does so in the same compact 29.5\"H × 15.0\"W × 13.1\"D footprint shared by every Spirit model in the range.\u003c\/p\u003e\n\u003ch4\u003e9kW, the largest Spirit heater, for rooms up to 494 cubic feet\u003c\/h4\u003e\n\u003cp\u003eThe SP90E extends the Spirit series to its maximum room coverage: 177 to 494 cubic feet. This is the range that encompasses large 5 to 6-person home saunas and any room where significant cold surfaces, glass panels, tile floors, concrete walls, drive the adjusted cubic footage substantially above the nominal room volume. At 9kW, the SP90E draws 37.5A and requires a 50A breaker and 8 AWG wire, one step heavier than the SP80E's 40A requirement. This electrical difference is the only reason to choose between the SP80E and SP90E: if the room calculation confirms coverage above 431 cubic feet (the SP80E's ceiling), the SP90E is the correct and only Spirit model that serves it.\u003c\/p\u003e\n\u003ch4\u003ePresence detection and dual safety sensors, safe remote activation at 9kW\u003c\/h4\u003e\n\u003cp\u003eThe SP90E carries the integrated safety systems that define every Spirit model. The presence detection system prevents the heater from being activated, manually or remotely via the app, if any item is placed on top of the heater. The dual-sensor system monitors the heater surface temperature with one sensor and the sauna room air temperature with a second, independent sensor; either threshold triggers automatic shutoff. On a 9kW heater connected to a 50A circuit and activated remotely, these systems provide the safety assurance that makes remote preheat a practical and responsible operation rather than a risk. Both are permanently active and cannot be bypassed.\u003c\/p\u003e\n\u003ch4\u003eOpen stone cage, 110 lbs of R-991 stones visible from all sides\u003c\/h4\u003e\n\u003cp\u003eThe SP90E uses the same open curved black steel cage as the SP60E and SP80E. The 110-lb stone capacity fills the cage visibly from every angle in the sauna room. Heat radiates simultaneously from all faces of the exposed stone mass rather than directionally from a single front face, producing more even radiant heat distribution across the room. The ventilation ducts beneath the stone cage circulate air through the heater for even temperature distribution and cool the rear of the heater, allowing direct wood wall mounting despite the fully open stone design on all other sides.\u003c\/p\u003e\n\u003ch4\u003eDesigned and manufactured in Finland, ETL certified\u003c\/h4\u003e\n\u003cp\u003eThe Spirit series is designed and engineered in Finland, where Harvia has been making sauna heaters since 1950. The SP90E carries ETL certification for use in North America and is compatible with Harvia Xenio and Fenix WiFi control units, both of which integrate with the MyHarvia mobile app on iOS and Android, plus Google Home and Amazon Alexa. The control unit and sauna stones are \u003cstrong\u003esold separately\u003c\/strong\u003e, so you can pair the heater with the control package and stone type that best fits your installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- HOOK --\u003e\n\u003cdiv class=\"sl-hook\"\u003eHighest-output Spirit heater, covers rooms from 177 to 494 cubic feet. Open stone cage with stones visible on all sides, 110-lb stone capacity. Presence detection prevents activation if items on top. Dual independent safety sensors. Ventilation ducts cool rear wall for direct wood mounting. 29.5\"H × 15.0\"W × 13.1\"D. Safety distance 3.2\" front and sides, 35.5\" ceiling. 240V single-phase, 37.5A, 50A breaker, 8 AWG wire. ETL certified. Control unit and Harvia R-991 stones (4 boxes, 110 lbs) sold separately. Made in Finland. 2-year consumer \/ 1-year commercial warranty.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003e9 kW heater (heater only)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e177 to 494 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eOpen stone cage, stones fully visible\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eCurved black steel frame\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003ePresence detection, safe for remote preheat\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eDual independent safety sensors\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eVentilation ducts, direct wood wall mounting\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e110 lbs stone capacity\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eXenio \/ Fenix WiFi compatible\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMyHarvia app, Google Home, Alexa\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e240V \/ 1-phase, 50A breaker, 8 AWG\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eETL certified\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMade in Finland\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e2-year warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!-- IMPORTANT NOTICE --\u003e\n\u003cdiv class=\"sl-notice\"\u003e\n\u003cstrong\u003eHeater only.\u003c\/strong\u003e The Harvia Xenio (CX45 WiFi) or Fenix (FX45 WiFi) control unit and Harvia R-991 sauna stones (4 boxes, 110 lbs total) are required for operation and are \u003cstrong\u003esold separately\u003c\/strong\u003e. A licensed electrician is required for all electrical connections.\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003c!-- SPECIFICATIONS --\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\u003eElectrical\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\u003e9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e240V \/ 1-phase \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage\u003c\/td\u003e\n\u003ctd\u003e37.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit breaker required\u003c\/td\u003e\n\u003ctd\u003e50 A (standard 2-pole, no GFI\/GFCI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e8 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eETL (UL 875)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax temperature\u003c\/td\u003e\n\u003ctd\u003e194°F (via CX45 or FX45 control)\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\u003eDimensions and weight\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e29.5\" (749 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e15.0\" (381 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e13.1\" (333 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e28.8 lbs (13.1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall-mounted\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\u003eRoom sizing and stones\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom volume\u003c\/td\u003e\n\u003ctd\u003e177 to 494 cu ft (5 to 14 m³)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e110 lbs (50 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones required\u003c\/td\u003e\n\u003ctd\u003e4 boxes Harvia R-991 (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone size\u003c\/td\u003e\n\u003ctd\u003e5 to 10 cm (2 to 4\") rounded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone type\u003c\/td\u003e\n\u003ctd\u003eHarvia R-991 (required for operation)\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\u003eSafety distances\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront (combustible materials)\u003c\/td\u003e\n\u003ctd\u003e3.2\" (81 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSides, left and right (combustible)\u003c\/td\u003e\n\u003ctd\u003e3.2\" (81 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeiling clearance\u003c\/td\u003e\n\u003ctd\u003e35.5\" (902 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum room height\u003c\/td\u003e\n\u003ctd\u003e75\" (1,905 mm)\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 features\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePresence detection\u003c\/td\u003e\n\u003ctd\u003eHeater cannot activate if items are on top, safe for remote preheat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater temperature sensor\u003c\/td\u003e\n\u003ctd\u003eMonitors heater surface, auto shutoff on overtemperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom temperature sensor\u003c\/td\u003e\n\u003ctd\u003eMonitors sauna air independently, separate shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear cooling\u003c\/td\u003e\n\u003ctd\u003eVentilation ducts cool rear wall, direct wood mounting\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\u003eControl compatibility (sold separately)\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible controls\u003c\/td\u003e\n\u003ctd\u003eHarvia Xenio CX45 WiFi or Fenix FX45 WiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp\u003c\/td\u003e\n\u003ctd\u003eMyHarvia, iOS and Android\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmart home\u003c\/td\u003e\n\u003ctd\u003eGoogle Home, Amazon Alexa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional accessories\u003c\/td\u003e\n\u003ctd\u003eSpirit safety rail, embedding flange\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\u003eConstruction and warranty\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain material\u003c\/td\u003e\n\u003ctd\u003eSteel, black powder-coat finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone design\u003c\/td\u003e\n\u003ctd\u003eOpen cage, stones visible on all sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating elements\u003c\/td\u003e\n\u003ctd\u003eVirta elements, serviceable replacements available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConsumer warranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial warranty\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eDesigned, engineered, and made in Finland\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\u003c!-- INCLUDED --\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"sl-inc-grid\"\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eHarvia Spirit SP90E 9kW sauna heater (black)\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eSafety device on top of the heater\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eWall mounting bracket and hardware\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eSafety regulations document\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 1rem; font-weight: 500; color: #64748b; font-size: 14px;\"\u003e\u003cstrong\u003eRequired for operation, sold separately:\u003c\/strong\u003e Harvia Xenio CX45 WiFi or Fenix FX45 WiFi control unit, and 4 boxes of Harvia R-991 sauna stones (110 lbs total). \u003cstrong\u003eOptional accessories:\u003c\/strong\u003e Spirit safety rail, Spirit embedding flange. A licensed electrician is required for all electrical connections.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003c!-- WHY SP90E --\u003e\n\u003ch3\u003eWhy the Spirit SP90E stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e9kW Spirit, rooms up to 494 cu ft\u003c\/div\u003e\n\u003cp\u003eThe highest-output Spirit heater. Covers rooms from 177 to 494 cubic feet, the full Spirit design including open cage, dual safety interlocks, and 110-lb stone load at the output level for very large home sauna rooms. The only Spirit model for rooms above 431 cu ft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003ePresence detection, safe 9kW remote preheat\u003c\/div\u003e\n\u003cp\u003eThe presence detection system prevents activation if any item is on top of the heater, manual or remote. On a 9kW heater, this is the safety feature that makes WiFi remote preheat genuinely responsible. Both dual temperature sensors remain active at all times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eOpen cage, 110 lbs stones on all sides\u003c\/div\u003e\n\u003cp\u003eThe curved open cage holds 110 lbs of R-991 stones (sold separately), visible from every angle. Heat radiates simultaneously from all faces of the stone mass. Ventilation ducts beneath the cage produce even temperature distribution and cool the rear wall for safe wood mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eXenio or Fenix WiFi compatible\u003c\/div\u003e\n\u003cp\u003ePair with the Harvia Xenio CX45 WiFi or Fenix FX45 WiFi control (sold separately). MyHarvia app, Google Home, and Alexa integration, digital scheduling, and remote preheat. The FX45 adds AI-driven adaptive heating profiles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e50A breaker, confirm panel capacity\u003c\/div\u003e\n\u003cp\u003eThe 9kW SP90E requires a 50A two-pole breaker and 8 AWG wire, heavier than the SP80E's 40A requirement. Confirm the electrical panel has the capacity to accommodate a 50A circuit before ordering. A licensed electrician is required for all connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eMade in Finland, 75 years of heritage\u003c\/div\u003e\n\u003cp\u003eDesigned, engineered, and manufactured by Harvia in Finland, where they have been making sauna heaters since 1950. ETL certified for North America. Backed by a 2-year consumer warranty with serviceable Virta heating elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003c!-- ABOUT HARVIA --\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\/2025-09\/Harvia-Spirit-Sauna-Heater-Package.jpg\" alt=\"Harvia Spirit SP90E 9kW black electric sauna heater with open stone cage and curved steel frame\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Finland, 75 years\u003c\/span\u003e\n\u003ch4\u003eThe Spirit SP90E, the largest Spirit heater, for saunas where nothing smaller will do\u003c\/h4\u003e\n\u003cp\u003eHarvia has been making sauna heaters in Finland since 1950. The SP90E is the top of the Spirit lineup: the same elegantly curved open cage, the same presence-detection safety that makes remote preheat reliable, the same dual sensors, the same ventilation ducts, and the same 110-lb stone capacity as the SP60E and SP80E, at 9kW for rooms up to 494 cubic feet. The step from SP80E to SP90E is dictated entirely by room size. If the adjusted room volume exceeds 431 cu ft, the SP90E is the correct choice.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e9kW, 177-494 cu ft\u003c\/strong\u003e, the largest room range in the Spirit lineup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePresence detection + dual sensors\u003c\/strong\u003e, safe for remote activation via WiFi app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation ducts, open cage, 110 lbs stones\u003c\/strong\u003e, consistent with full Spirit design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Xenio \u0026amp; Fenix WiFi controls\u003c\/strong\u003e, sold separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eETL certified, made in Finland\u003c\/strong\u003e, 2-year consumer warranty\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\"\u003eSP60E, SP80E, or SP90E?\u003c\/span\u003e\n\u003ch4\u003eChoosing the right Spirit heater by room size\u003c\/h4\u003e\n\u003cp\u003eAll three Spirit heaters share the same open cage design and safety features. The difference is output, room coverage, and electrical requirement. \u003cstrong\u003eSP60E (6kW):\u003c\/strong\u003e 177-294 cu ft, 30A breaker, 10 AWG. \u003cstrong\u003eSP80E (8kW):\u003c\/strong\u003e 177-431 cu ft, 40A breaker, 8 AWG. \u003cstrong\u003eSP90E (9kW):\u003c\/strong\u003e 177-494 cu ft, 50A breaker, 8 AWG. Calculate the adjusted cubic footage of the room. If the result is under 294 cu ft, the SP60E is correct. Between 294 and 431 cu ft, the SP80E. Above 431 cu ft, the SP90E is the only Spirit model that serves it.\u003c\/p\u003e\n\u003cp\u003eA standard 2-pole 50A breaker and 8 AWG wire are required for the SP90E. Do not use a GFI or GFCI breaker. The control unit installs in a dry area outside the sauna room; the heater mounts on the wall inside. Only Harvia R-991 stones (5-10 cm) should be used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/Harvia-Spirit-Heater-Pkg-Fenix-Wifi-round-stones_76952fe1-e2ce-492f-9542-cc96af258ff7.jpg?v=1778511123\u0026amp;width=800\" alt=\"Harvia Spirit SP90E heater shown with open stone cage and 9kW curved black frame\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003c!-- MANUALS --\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:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/Harvia-Spirit-Sauna-Heater-IOM.pdf\" 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=\"sl-manual-item\"\u003e\n\u003ch6\u003eSpec Sheet\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/Harvia-Spirit-Sauna-Heater-SP90E-Spec-Sheet.pdf\" 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 Spec Sheet (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eElement Requirements\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/Harvia-Element-Requirements.pdf\" 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 Element Requirements (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:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2026-02\/Harvia%20Stone%20Requirements%2002.27.25.pdf\" 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\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eSize Your Sauna\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/Sizing-Your-Harvia.pdf\" 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 Size Your Sauna (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WARRANTY --\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cdiv class=\"sl-warranty\"\u003e\n\u003ch5\u003e2-year consumer warranty \/ 1-year commercial warranty\u003c\/h5\u003e\n\u003cp\u003eThe Harvia Spirit SP90E is covered by a \u003cstrong\u003e2-year limited warranty for consumer (residential) use\u003c\/strong\u003e and a \u003cstrong\u003e1-year limited warranty for commercial use\u003c\/strong\u003e from the date of purchase. The warranty covers the heater against defects in manufacturing and materials. Heating elements are serviceable Virta-series elements, available as authorized replacement parts. The warranty is void if: the heater is connected to a GFI\/GFCI breaker, incorrect stones are used (must be Harvia R-991, 5 to 10 cm), water is poured directly onto heating elements, or the heater is improperly installed. Proof of purchase from an authorized Harvia dealer is required. 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":52306368561434,"sku":"HSPE904M","price":1930.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/harvia-sauna-heater-240v-1ph-home-use-harvia-spirit-sp90e-spirit-series-9kw-sauna-heater-black-1194024565.webp?v=1780407531","url":"https:\/\/mediriser.com\/products\/harvia-spirit-sp90e-spirit-series-9kw-sauna-heater-black","provider":"Mediriser","version":"1.0","type":"link"}