{"title":"Controllers","description":"\u003cp\u003eSauna control panels and WiFi controllers for electric heaters — Harvia, Sentiotec, HUUM.\u003c\/p\u003e","products":[{"product_id":"harvia-fenix-fx1804xc-universal-wifi-control-core-9-29-kw","title":"Harvia Fenix FX1804XC Universal WiFi Control Core (9–29 kW)","description":"\u003cp\u003eThe \u003cstrong\u003eHarvia Fenix FX1804XC\u003c\/strong\u003e— Harvia's universal WiFi control core, compatible with electric heaters from \u003cstrong\u003e9 to 29 kW\u003c\/strong\u003e. Handles temperature, humidity, session timing, and remote scheduling from your phone via the Harvia app.\u003c\/p\u003e\u003cp\u003eThe go-to control unit for anyone building a smart-home sauna: pre-heat before you leave work, monitor from the couch, and get alerts if anything's amiss.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: Harvia Fenix FX1804XC\u003c\/li\u003e\n\u003cli\u003eCompatible heater range: 9–29 kW\u003c\/li\u003e\n\u003cli\u003eConnectivity: WiFi (via Harvia app)\u003c\/li\u003e\n\u003cli\u003eFunctions: Temperature, humidity, session timing, remote control\u003c\/li\u003e\n\u003cli\u003eMade in: Finland\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":64686394736989,"sku":"HARVIA-FENIX-FX1804XC","price":723.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/saunainter-harvia-sauna-control-panels-control-unit-harvia-fenix-fx110-wifi-core-ipx5-11kw-fx1104xc-harvia-fenix-fx110-wifi-core-ipx5-11kw_rOtyuq.jpg?v=1781526127"},{"product_id":"harvia-c400vkk-power-card-wx358-sp358","title":"Harvia C400VKK Power Card (WX358 \/ SP358)","description":"\u003cp\u003eThe \u003cstrong\u003eHarvia C400VKK power card\u003c\/strong\u003e— an expansion module for Harvia commercial control units (WX358 \/ SP358 systems). Adds capacity for higher-output heaters and additional switching channels for larger commercial installations.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: Harvia C400VKK\u003c\/li\u003e\n\u003cli\u003eCompatible with: WX358 \/ SP358 control systems\u003c\/li\u003e\n\u003cli\u003eFunction: Power expansion card\u003c\/li\u003e\n\u003cli\u003eMade in: Finland\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harvia","offers":[{"title":"Default Title","offer_id":64686401356125,"sku":"HARVIA-C400VKK","price":340.68,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/saunainter-sauna-spare-parts-harvia-wx358-power-card-c400vkk_emUzEu.jpg?v=1781526228"},{"product_id":"sentiotec-pro-b2-sauna-control-unit","title":"Sentiotec Pro B2 Sauna Control Unit","description":"\u003cp\u003eThe \u003cstrong\u003eSentiotec Pro B2\u003c\/strong\u003e— commercial-grade sauna control unit built for public wellness facilities, gym saunas, and demanding residential installations that need bulletproof reliability.\u003c\/p\u003e\u003cp\u003eHandles temperature, humidity, timer scheduling, safety cut-outs, and integrates with most standard three-phase electric heaters up to 30 kW. The interface is clean, the build is heavy-duty, and Sentiotec has been the quiet standard in European commercial sauna control for years.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: Sentiotec Pro B2\u003c\/li\u003e\n\u003cli\u003eGrade: Commercial\u003c\/li\u003e\n\u003cli\u003eCompatible heater output: up to 30 kW (three-phase)\u003c\/li\u003e\n\u003cli\u003eFunctions: Temperature, humidity, timer, safety cut-outs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sentiotec","offers":[{"title":"Default Title","offer_id":64686407713117,"sku":"SENTIOTEC-PRO-B2","price":618.8,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/1-015-455-pro-b2.png?v=1781526897"},{"product_id":"sentiotec-power-booster-s2-30-1-009-280","title":"Sentiotec Power Booster S2-30 (1-009-280)","description":"\u003cp\u003eThe \u003cstrong\u003eSentiotec Power Booster S2-30\u003c\/strong\u003e— the expansion module that lets a Sentiotec Pro control unit drive commercial heaters beyond its standard 30 kW ceiling. Adds the extra switching capacity for heaters up to \u003cstrong\u003e30 kW additional load\u003c\/strong\u003e.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: Sentiotec Power Booster S2-30\u003c\/li\u003e\n\u003cli\u003eProduct code: 1-009-280\u003c\/li\u003e\n\u003cli\u003eFunction: Adds 30 kW switching capacity to a Sentiotec Pro control unit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sentiotec","offers":[{"title":"Default Title","offer_id":64686412530013,"sku":"SENTIOTEC-S2-30","price":473.38,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/1-007-320-1-008-779-1-009-280-o-s2-18s-o-s2-18-o-s2-30.png?v=1781526843"},{"product_id":"sauna-wifi-juhtimispult-wifi-remote-control","title":"Sauna WiFi Juhtimispult — WiFi Remote \/ Control","description":"\u003cp\u003eA WiFi remote and control unit for compatible electric sauna heaters — the retrofit way to add smart-home control to a sauna installation without swapping the whole control system.\u003c\/p\u003e\u003cp\u003eFire up the sauna from your phone on the way home, monitor temperature and session time from the couch, and get alerts if the heater's still running when it shouldn't be.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConnectivity: WiFi\u003c\/li\u003e\n\u003cli\u003eFunctions: Remote start\/stop, temperature monitor, session timing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Saunainter","offers":[{"title":"Default Title","offer_id":64686417641821,"sku":"SAUNA-WIFI-REMOTE","price":230.49,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/saunainter-harvia-juhtimispuldid-juhtimispult-harvia-xenio-cx110xw-wifi-ip-cx1104xwip-harvia-xenio-cx110xw-wifi-ip_kjFoGU.jpg?v=1781526681"},{"product_id":"huum-uku-4-2-wifi-sauna-control-classic-black","title":"HUUM UKU 4.2 WiFi Sauna Control — Classic, Black","description":"\u003cp\u003eThe \u003cstrong\u003eHUUM UKU 4.2 WiFi Classic (Black)\u003c\/strong\u003e— HUUM's award-winning sauna controller in its most recent revision. Reads temperature from inside the sauna, controls the heater from the wall panel or your phone, and looks like a piece of interior design rather than an appliance.\u003c\/p\u003e\u003cp\u003eWiFi built-in — fire up the sauna from the kitchen, the office, or the car park. Bluetooth-based commissioning takes minutes. Compatible with all HUUM heaters and most Harvia \/ other Finnish electric heaters up to 18 kW.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: HUUM UKU 4.2 WiFi Classic\u003c\/li\u003e\n\u003cli\u003eFinish: Black\u003c\/li\u003e\n\u003cli\u003eControl range: Up to 18 kW heater\u003c\/li\u003e\n\u003cli\u003eConnectivity: WiFi + Bluetooth\u003c\/li\u003e\n\u003cli\u003eMounting: Wall-mounted, sauna-side\u003c\/li\u003e\n\u003cli\u003eMade in: Estonia\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eContactor box (relay unit) required for heaters over 10 kW — please check heater manual.\u003c\/p\u003e","brand":"HUUM","offers":[{"title":"Default","offer_id":65884238381405,"sku":"HUUM-UKU-42-WIFI-BLK","price":735.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/f20f9885-fce5-4a66-930e-233beca70f3f.webp?v=1789049323"},{"product_id":"harvia-xenio-cx170xw-wifi-sauna-control-unit-black","title":"Harvia Xenio CX170XW WiFi Sauna Control Unit (Black)","description":"\u003cp\u003eThe \u003cstrong\u003eHarvia Xenio CX170XW\u003c\/strong\u003e— Harvia's premium WiFi-enabled control panel for standalone electric heaters up to 17 kW. Black-glass finish, capacitive touch, and full MyHarvia app integration for remote scheduling, temperature control and status monitoring.\u003c\/p\u003e\u003cp\u003eDesigned for heaters that need a separate control (Legend, Cilindro, Club Pro, etc.) — takes the place of an older Xenio CX or C-series controller and adds WiFi.\u003c\/p\u003e\u003ch4\u003eAt a glance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: Harvia Xenio CX170XW WiFi\u003c\/li\u003e\n\u003cli\u003eFinish: Black glass, capacitive touch\u003c\/li\u003e\n\u003cli\u003eMax heater output: 17 kW\u003c\/li\u003e\n\u003cli\u003eConnectivity: WiFi via MyHarvia app\u003c\/li\u003e\n\u003cli\u003eMounting: Outside the sauna (wall-mounted control head)\u003c\/li\u003e\n\u003cli\u003eMade in: Estonia\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eContactor box included as part of the control set. Sauna stones and heater sold separately.\u003c\/p\u003e","brand":"Harvia","offers":[{"title":"Default","offer_id":65884242674013,"sku":"HARVIA-XENIO-CX170XW-BLK","price":714.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/1097\/8653\/files\/saunainter-harvia-juhtimispuldid-juhtimispult-harvia-xenio-cx110xw-wifi-ip-cx1104xwip-harvia-xenio-cx110xw-wifi-ip_kjFoGU.jpg?v=1781526681"}],"url":"https:\/\/aaltosaunas.ie\/collections\/controllers.oembed","provider":"Aalto Saunas","version":"1.0","type":"link"}