{"product_id":"harvia-xenio-cx45-u1-u3-xw-digital-control-w-wifi-for-sauna-heaters","title":"Harvia Xenio CX45-U1-U3-XW Digital Control w\/WiFi  For Sauna Heaters","description":"\u003cp\u003e\u003c!-- Harvia Xenio CX45-U1-U3-XW - Digital Control with WiFi for Club, Spirit, Cilindro, Virta, Virta Pro --\u003e\u003c\/p\u003e\n\u003ch2 class=\"MuiTypography-root MuiTypography-h1 comp-typography comp-product-details__name css-m5p6uo\"\u003eHarvia Xenio CX45-U1-U3-XW Digital Control w\/WiFi for Club, Spirit, Cilindro, Virta, and Virta Pro Series Sauna Heaters\u003c\/h2\u003e\n\u003c!-- SKU: CX45-U1-U3-XW | Max load 17kW\/1PH or 15kW\/3PH | Built-in WiFi | MyHarvia app --\u003e\u003c!-- NOT compatible with Combi, KIP, The Wall, or Vega heaters --\u003e\u003c!-- 1 document section: Installation and Operation Manual | PDF: Harvia-Xenio-Control-CX30-and-CX45-IOM.pdf --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a2a3a; 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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 { grid-template-columns: 1fr; gap: 1rem; padding: 1rem 0; }\n    .sl-brand1 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\u003cdiv class=\"sl-desc\"\u003e\n\u003cp\u003eThe Harvia Xenio CX45-U1-U3-XW is the higher-capacity Xenio control unit with built-in WiFi for the Club, Spirit, Cilindro, Virta, and Virta Pro series Harvia sauna heaters. It handles single-phase loads up to 17kW and three-phase loads up to 15kW - the correct control for Harvia's larger and commercial-grade heaters that exceed the CX30's capacity. The XW in the model name designates built-in WiFi: unlike the standard CX45 which requires the separate CX004WIFI panel to add app connectivity, the CX45-U1-U3-XW has WiFi integrated directly into the control unit. Touch panel control of temperature, time, lighting, and fan is available locally; the MyHarvia app on iOS or Android provides the same control remotely from anywhere. The CX45-U1-U3-XW is not compatible with Virta Combi heaters, KIP series, The Wall series, or Vega series heaters.\u003c\/p\u003e\n\u003ch4\u003eCX45 vs CX30 - higher load capacity for larger heaters\u003c\/h4\u003e\n\u003cp\u003eThe Harvia Xenio control family has two capacity tiers. The CX30 handles heaters up to 10.5kW on single-phase and is the correct control for KIP, Spirit 6kW, Cilindro 6kW, and Virta 6kW installations. The CX45 handles heaters up to 17kW on single-phase and 15kW on three-phase - the correct control for Spirit 8kW, Cilindro 8\/9\/10.5kW, Virta 8\/9\/10.5\/16\/20kW, Club 10\/12.5\/15kW, and Virta Pro 16\/20kW installations. Both the CX30 and CX45 use the same Xenio touch control panel interface and the same MyHarvia app; the power unit inside the CX45 is rated for the higher current draw of the larger heaters. Using a CX30 with a heater that requires a CX45 will result in incorrect operation and potential damage. Confirm the heater's required control unit before purchasing by checking the heater's installation manual or the compatibility note below.\u003c\/p\u003e\n\u003ch4\u003eBuilt-in WiFi and MyHarvia app - the XW advantage\u003c\/h4\u003e\n\u003cp\u003eThe standard CX45 (without XW suffix) requires the CX004WIFI add-on panel to enable WiFi and MyHarvia app control. The CX45-U1-U3-XW has WiFi built in - no separate panel purchase, no additional mounting position. The same MyHarvia app functions available with the CX004WIFI are available directly through the CX45-U1-U3-XW: remote on\/off, temperature control, lighting and fan management, timed start, week timer scheduling, live session monitoring, and FOTA automatic firmware updates over WiFi. The CX45-U1-U3-XW covers both single-phase (U1) and three-phase (U3) wiring configurations in a single unit, with the voltage and phase configuration set at installation.\u003c\/p\u003e\n\u003ch4\u003eTouch panel, surface or flush mount, inside or outside the sauna\u003c\/h4\u003e\n\u003cp\u003eThe CX45-U1-U3-XW touch control panel measures 3.4\"W x 1.0\"D x 4.4\"H and can be installed as a surface mount or embedded flush into the wall. It can be positioned inside the sauna room at the correct safety distance from the heater (maximum 1 meter \/ 39\" from floor if inside the sauna), in the changing room, or in any adjacent room - the same installation flexibility as the CX30 and CX004WIFI panels. The touch panel operates in the 104-194°F (40-90°C) temperature range with a maximum humidity of 99% non-condensing, making it suitable for in-sauna installation at the specified safety distances. A data cable connects the control panel to the power unit, which mounts in the electrical service area outside the sauna room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003eHigher-capacity Xenio digital control unit with built-in WiFi for Club, Spirit, Cilindro, Virta, and Virta Pro series Harvia heaters. Up to 17kW single-phase \/ 15kW three-phase. Built-in WiFi - no separate CX004WIFI panel needed. MyHarvia app - iOS and Android - remote on\/off, temperature, lighting, fan, timed start, week timer, FOTA firmware updates. Touch control panel. Covers U1 (single-phase) and U3 (three-phase) installations. Surface or flush mount. Installs inside or outside sauna room. 3.4\"W x 1.0\"D x 4.4\"H. Not compatible with Combi, KIP, The Wall, or Vega heaters. ETL Listed. 1-year warranty. Made by Harvia, Finland.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003eBuilt-in WiFi - no separate WiFi panel needed\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUp to 17kW single-phase \/ 15kW three-phase\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eClub, Spirit, Cilindro, Virta, Virta Pro series\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eCovers U1 (1PH) and U3 (3PH) installations\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMyHarvia app - iOS and Android\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eRemote on\/off and temperature control\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eTimed start and week timer\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eFOTA automatic firmware updates\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eTouch control panel - 3.4\" x 1.0\" x 4.4\"\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSurface or flush wall mount\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eInside or outside sauna room\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eNot compatible with Combi, KIP, The Wall, or Vega\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eETL Listed\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e1-year warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\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 and capacity\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e240V \/ 1-phase (U1) or 208V \/ 3-phase (U3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum load - single phase\u003c\/td\u003e\n\u003ctd\u003e17 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum load - three phase\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eETL Listed\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\u003eCompatibility\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpirit series\u003c\/td\u003e\n\u003ctd\u003e8kW (CX45 required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCilindro series\u003c\/td\u003e\n\u003ctd\u003e8kW, 9kW, 10.5kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVirta series\u003c\/td\u003e\n\u003ctd\u003e8kW, 9kW, 10.5kW, 16kW, 20kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClub series\u003c\/td\u003e\n\u003ctd\u003e10kW, 12.5kW, 15kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVirta Pro series\u003c\/td\u003e\n\u003ctd\u003e16kW, 20kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNOT compatible with\u003c\/td\u003e\n\u003ctd\u003eCombi (use CX30C), KIP (use CX30), The Wall (built-in), Vega (built-in\/Xenio WiFi)\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\u003ePhysical\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x D x H)\u003c\/td\u003e\n\u003ctd\u003e3.4\" x 1.0\" x 4.4\" (86 x 25 x 112 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation options\u003c\/td\u003e\n\u003ctd\u003eSurface mount or flush wall mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocation\u003c\/td\u003e\n\u003ctd\u003eInside sauna (max 39\"\/1m from floor) or outside\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e104-194°F (40-90°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax humidity\u003c\/td\u003e\n\u003ctd\u003e99% non-condensing\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\u003eMyHarvia app functions\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp availability\u003c\/td\u003e\n\u003ctd\u003eiOS (App Store) and Android (Google Play) - free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater control\u003c\/td\u003e\n\u003ctd\u003eRemote on\/off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e104-194°F (40-90°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLighting and fan control\u003c\/td\u003e\n\u003ctd\u003eYes - on\/off from app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimed start\u003c\/td\u003e\n\u003ctd\u003eSchedule sauna to be ready at a specific time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeek timer\u003c\/td\u003e\n\u003ctd\u003eRegular recurring sauna schedule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus monitoring\u003c\/td\u003e\n\u003ctd\u003eTemperature, heating time, heater state\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware updates\u003c\/td\u003e\n\u003ctd\u003eFOTA - automatic over WiFi\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\u003eCX30 vs CX45 - which do I need?\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCX30 (up to 10.5kW \/ 1PH)\u003c\/td\u003e\n\u003ctd\u003eSpirit 6kW, Cilindro 6kW, Virta 6kW, KIP series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCX45 (up to 17kW \/ 1PH)\u003c\/td\u003e\n\u003ctd\u003eSpirit 8kW, Cilindro 8-10.5kW, Virta 8-20kW, Club 10-15kW, Virta Pro 16-20kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCX30C (Combi)\u003c\/td\u003e\n\u003ctd\u003eVirta Combi HL80SA, HL90SA, HL110SA only\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\u003eWarranty\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty period\u003c\/td\u003e\n\u003ctd\u003e1 year from date of purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eCX45-U1-U3-XW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eHarvia - 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\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"sl-inc-grid\"\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eXenio CX45-U1-U3-XW digital control panel with built-in WiFi\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003ePower unit\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eData cable\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eTemperature sensor\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 1rem; font-weight: 500; color: #64748b; font-size: 14px;\"\u003e\u003cstrong\u003eFree:\u003c\/strong\u003e MyHarvia mobile app - download from App Store or Google Play. \u003cstrong\u003eRequires:\u003c\/strong\u003e Compatible Harvia heater (Club, Spirit, Cilindro, Virta, or Virta Pro series - not included). A licensed electrician is required for all electrical connections.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the Harvia Xenio CX45-U1-U3-XW stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eBuilt-in WiFi - complete in one unit\u003c\/div\u003e\n\u003cp\u003eThe XW suffix means WiFi is integrated directly into the CX45 control unit. The standard CX45 requires the separate CX004WIFI panel to add app control, adding cost and an additional mounting position. The CX45-U1-U3-XW delivers the full MyHarvia app experience - remote preheat, scheduling, monitoring, and FOTA updates - without any additional hardware purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eUp to 17kW - the high-capacity Xenio\u003c\/div\u003e\n\u003cp\u003eThe CX45 handles single-phase loads up to 17kW and three-phase loads up to 15kW - the power tier required for Cilindro 8-10.5kW, Virta 8-20kW, Club 10-15kW, and Virta Pro 16-20kW installations. The CX30 maxes out at 10.5kW; any Harvia heater above this requires the CX45. Using the wrong capacity control unit risks incorrect operation and potential warranty issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eCovers U1 and U3 in one SKU\u003c\/div\u003e\n\u003cp\u003eThe CX45-U1-U3-XW covers both single-phase (U1, 240V) and three-phase (U3, 208V) wiring configurations. For commercial sauna installations on three-phase power, the same control unit is used with the appropriate three-phase wiring configuration as described in the IOM. No separate U3-specific SKU is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eRemote preheat from anywhere\u003c\/div\u003e\n\u003cp\u003eTurn the sauna on from the MyHarvia app before leaving the office or from the couch. Schedule timed starts for regular sauna sessions, or set a week timer to have the sauna ready every Saturday morning automatically. For commercial installations, the remote monitoring capability lets a facility manager check sauna status across multiple units without physically visiting each room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eFOTA automatic firmware updates\u003c\/div\u003e\n\u003cp\u003eThe CX45-U1-U3-XW receives firmware updates automatically over WiFi when connected to the MyHarvia network. No manual update process or USB connections. The control software stays current with the latest Harvia improvements as they are released, without any action required from the owner or facility manager.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eInside or outside sauna room\u003c\/div\u003e\n\u003cp\u003eThe 3.4\"W x 1.0\"D x 4.4\"H panel installs as a surface mount or flush-mount and can be positioned inside the sauna room at the correct safety distance from the heater (maximum 1m from floor), in the changing room, or in any adjacent room. The touch panel operates across the full sauna temperature and humidity range at the correct safety distances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\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\/2025-01\/harvia-xenio-sauna-control-500x500_0.jpg\" alt=\"Harvia Xenio CX45-U1-U3-XW digital sauna control panel with built-in WiFi for Club Spirit Cilindro Virta and Virta Pro series heaters\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eHarvia - Finland - ETL Listed\u003c\/span\u003e\n\u003ch4\u003eHarvia Xenio CX45-U1-U3-XW. Higher-capacity Xenio with built-in WiFi for the Club, Spirit, Cilindro, Virta, and Virta Pro series.\u003c\/h4\u003e\n\u003cp\u003eHarvia is a Finnish sauna and spa company with over 70 years of manufacturing history. The CX45-U1-U3-XW is the higher-load capacity Xenio control with integrated WiFi - the correct choice for Harvia heaters from 8kW through 20kW in the Club, Spirit, Cilindro, Virta, and Virta Pro series. The built-in WiFi eliminates the need for a separate CX004WIFI add-on panel, providing the complete MyHarvia app experience in a single control unit purchase. Verify the required control for the specific heater model using the heater's installation manual before ordering. We are an authorized Harvia dealer.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in WiFi\u003c\/strong\u003e - no separate CX004WIFI panel needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 17kW\/1PH or 15kW\/3PH\u003c\/strong\u003e - for larger Harvia heater series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible:\u003c\/strong\u003e Club, Spirit 8kW, Cilindro 8-10.5kW, Virta 8-20kW, Virta Pro\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot compatible:\u003c\/strong\u003e Combi (CX30C required), KIP, The Wall, Vega\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMyHarvia app\u003c\/strong\u003e - remote preheat, scheduling, FOTA - ETL Listed - 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\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-Xenio-Control-CX30-and-%D0%A1X45-IOM.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\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 Harvia-Xenio-Control-CX30-and-CX45-IOM.pdf \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cdiv class=\"sl-warranty\"\u003e\n\u003ch5\u003e1-year limited warranty\u003c\/h5\u003e\n\u003cp\u003eThe Harvia Xenio CX45-U1-U3-XW is covered by a \u003cstrong\u003e1-year limited warranty\u003c\/strong\u003e from the date of purchase. The warranty covers defects in manufacturing and materials under normal use conditions. The warranty does not cover damage caused by improper installation, use with non-compatible heaters, or failure to follow the installation guidelines in the IOM. A licensed electrician is required for all electrical connections. 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":52270341226778,"sku":"CX45-U1-U3-XW","price":1292.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/harvia-xenio-sauna-control-500x500_0.jpg?v=1779564639","url":"https:\/\/mediriser.com\/products\/harvia-xenio-cx45-u1-u3-xw-digital-control-w-wifi-for-sauna-heaters","provider":"Mediriser","version":"1.0","type":"link"}