Harvia Fenix FX45-U1-U3-XC Digital WiFi Control for Club, Spirit, Cilindro, Virta & Virta Pro Sauna Heaters

Harvia Fenix FX45-U1-U3-XC

Digital WiFi Control for Club, Spirit, Cilindro, Virta & Virta Pro Sauna Heaters
Smart, Powerful Control for High-Performance Sauna Systems

Transform the way you manage your sauna with the Harvia Fenix FX45-U1-U3-XC, an advanced WiFi-enabled digital control unit designed for Harvia’s most popular heater lines — including Club, Spirit, Cilindro, Virta, and Virta Pro Series. Built for both residential and commercial use, this intelligent controller delivers precision, convenience, and total customization for a superior sauna experience.

Featuring a sleek glass touchscreen, the FX45 allows you to easily adjust temperature, lighting, ventilation, and session duration with just a tap. Its built-in WiFi connectivity enables full remote operation through your smartphone or tablet, ensuring your sauna is ready exactly when you want it.

The system uses AI-driven performance learning, adapting to the heating characteristics of your sauna to optimize warm-up times and overall energy efficiency. Designed for versatility, it supports both surface and flush-mounted installation, and can be placed inside or outside the sauna for maximum layout flexibility.

Features

• Full control of sauna heater, lighting, and ventilation

• AI-powered interface adapts to heater performance for optimized heating

• Premium glass touchscreen panel with intuitive, modern design

• WiFi connectivity for remote control and monitoring

• Temperature control range: 104–194°F

• Pre-set session timer: 0–12 hours

• Designed for surface or flush installation

• Installs inside or outside the sauna room

• Compact size: 3.4"W × 1"D × 4.4"H

• 1-year limited warranty (consumer + commercial)

Includes

• Harvia Fenix FX45 Control Panel

• Temperature Sensor

  • Note: If your heater includes a sensor, follow the heater’s installation instructions

• Power Unit

• Data Cable

• Installation Materials

• Installation & Operation Manual

• 1-Year Limited Warranty (Consumer & Commercial)

Specifications

• Model: FX45-U1-U3-XC

• Maximum Output Rating: 10.8 kW / 15 kW

• Voltage: 240 / 208

• Phase: 1 / 3

• Temperature Range: 104–194°F

• Pre-set Time Range: 0–12 hours

• Dimensions:

  • Width: 3.4" (8.6 cm)

  • Depth: 1" (2.5 cm)

  • Height: 4.4" (11.2 cm)

Resources

Installation and Operational Manual

Our Commitment to Your Satisfaction

At Premium Saunas, we strive to ensure your experience with us is nothing short of delightful, seamless, and transparent. This document outlines our comprehensive Order & Shipping Policy. Should you have further inquiries, we invite you to engage with our live chat, visit our

We are dedicated to providing the most competitive sauna prices online. To achieve this, we collaborate closely with our suppliers to adhere to Minimum Advertised Pricing (MAP) guidelines, ensuring that our competitors maintain a consistent pricing floor for all products. This policy is designed to keep the market fair and prevent price undercutting.