
Harvia Fenix FX45 WiFi Control for Club Spirit Cilindro Virta Pro
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Experience full climate control for larger saunas with the Harvia Fenix FX45 Digital WiFi Control. This smart touch screen panel manages compatible Harvia Club, Spirit, Cilindro, Virta, and Virta Pro heaters, giving you precise command over temperature, lighting, and ventilation from one clean interface or the MyHarvia app. Designed for both residential and commercial spaces, the FX45 learns how your heater warms up and adapts over time for faster heat up and more efficient operation.
Key Features
- Modern glass touch screen panel with bright numeric display
- WiFi connectivity for remote start and monitoring through the MyHarvia mobile app
- Controls heater output, operating time, lighting, and ventilation from one interface
- Intelligent learning adjusts to heater performance for improved warm up efficiency
- Flush mount or surface mount installation inside or outside the sauna room
- Works with Harvia Club, Spirit, Cilindro, Virta, and Virta Pro Series heaters
- Programmable on time up to 60 minutes with temperature range from 104 to 194 °F
- Separate power unit keeps the control panel slim and low profile on the wall
Specifications
| Model | Harvia Fenix FX45 U1 U3 XC |
| Control type | Digital touch screen sauna control with WiFi |
| Compatible heaters | Harvia Club, Spirit, Cilindro, Virta, and Virta Pro Series electric heaters |
| Maximum heater output | Up to 10.8 to 15 kW total load depending on voltage and phase |
| Voltage | 240 V or 208 V |
| Phase | Single phase or three phase |
| Operating temperature range | 104 to 194 °F at the control panel |
| Maximum on time | Up to 60 minutes per heating cycle |
| Mounting options | Surface mounted or flush mounted on wall |
| Installation location | Inside the sauna room or in an adjacent space |
| Control panel dimensions | 3.4 in W x 1.0 in D x 4.4 in H |
| Weight | Approximately 0.4 lb |
| Safety approvals | ETL listed |
| Warranty | Limited 1 year consumer and 1 year commercial warranty |
Compatibility & Installation
The Fenix FX45 is designed for use with Harvia Club, Spirit, Cilindro, Virta, and Virta Pro Series electric heaters within its rated output range. For larger installations where total heater load exceeds the controller rating, pair the FX45 with the Harvia Xenio or Fenix compatible power extension unit to increase capacity as required. Mount the glass control panel near the sauna door or in a nearby room for easy access, then locate the power unit in a dry service space according to the installation manual.
All wiring and startup must be completed by a licensed electrician following local electrical codes and Harvia installation instructions.
What’s Included
- Harvia Fenix FX45 digital WiFi control panel
- Power unit
- Temperature sensor
- Data cable and installation hardware
- Installation and operation manual
- Limited 1 year consumer and 1 year commercial warranty

Why Choose Sauna Luxuries?
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At Sauna Luxuries, we’re more than just another online store — we’re your dedicated partner in wellness. Every product we offer is carefully selected for quality, performance, and long-term value. As an authorized dealer, we guarantee authentic models, factory warranties, and expert guidance every step of the way. From fast answers to custom recommendations, we make shopping for your perfect sauna effortless.