Harvia Fenix FX45-U1-U3-XC Digital Sauna Control with WiFi

Description

The Harvia Fenix FX45-U1-U3-XC is Harvia's most capable Fenix control unit — a premium sauna controller with Wi-Fi capabilities, high-quality glass screen, and AI learning technology that adapts to your heater's performance over time. Compatible with the full range of Harvia's premium electric heater lineup including the Club, Spirit, Cilindro, Virta, and Virta Pro Series, the FX45 supports the highest output range of any Fenix control — up to 10.8kW at 240V 1PH and 15kW at 208V 3PH. Sauna heater sold separately.

Whether you are managing a powerful Club K15G in a large commercial sauna or a Virta Pro in a high-end home installation, the FX45 delivers the intelligent control and remote accessibility to match the performance of Harvia's top-tier heaters.

Smart Control Performance

The Fenix FX45 elevates sauna control with AI learning technology that adapts to your heater's performance characteristics over time — optimizing how and when it heats for greater efficiency and comfort. From anywhere via Wi-Fi and the MyHarvia app, you can control temperature, lighting, and ventilation with precision. The high-quality glass screen provides a premium look and feel that complements Harvia's top-tier heater designs.

With support for both 240V 1PH (up to 10.8kW) and 208V 3PH (up to 15kW) in a single model, the FX45 covers the complete electrical range of compatible heaters — making it the definitive control solution for Harvia's most powerful electric heater series.