Description
The Harvia Spirit SP90E Package comes complete with the Spirit SP90E Sauna Heater, your choice of Xenio Wi-Fi Control or Fenix Wi-Fi Control, and Sauna Stones — a premium all-in-one sauna heating solution for the largest home sauna spaces. This elegantly curved, high-quality heater heats up quickly to your desired temperature in sauna rooms from 177 to 494 cubic feet, while its advanced integrated safety features allow for confident remote operation via Wi-Fi.
The Spirit SP90E is built around safety-first design. Its integrated safety functions ensure the heater cannot be turned on if any items are placed on top of it, making remote start through the Wi-Fi app completely safe. Dual safety sensors monitor both the heater itself and the sauna room temperature to prevent overheating at all times.
Heating Performance
The Spirit SP90E delivers 9kW of output power — the most powerful model in the Spirit lineup — with a generous 110-pound stone capacity. This combination makes it capable of efficiently heating sauna rooms up to 494 cubic feet, the largest coverage range in the Spirit Series. The large stone bed creates rich, soft steam when water is ladled over the stones, delivering an immersive löyly experience that rivals dedicated pillar-style heaters.
Compatible with both the Xenio Wi-Fi Control and the Fenix Wi-Fi Control, the Spirit SP90E gives you full remote management of your sauna — including temperature, timer, lighting, and ventilation — from anywhere via the MyHarvia app.
Key Features
- Complete package — SP90E heater, Wi-Fi control (Xenio or Fenix), and sauna stones included
- 9kW output — the most powerful Spirit model, for sauna rooms from 177 to 494 cu. ft.
- Large 110-pound stone capacity for rich, immersive steam
- Integrated safety features — heater will not activate if items are placed on top
- Dual safety sensors monitor heater and room temperature
- Safe remote start via Wi-Fi app
- Choice of Xenio Wi-Fi Control or Fenix AI Wi-Fi Control
- Elegantly curved, premium black design
- Wall-mounted — suitable for installation inside or outside the sauna room
- Designed, engineered, and made in Finland
- ETL listed for safety
What's Included
- Spirit SP90E Sauna Heater (with temperature sensor, wall-mounting bracket, mounting screws, manual, 1-year limited warranty)
- Xenio Wi-Fi Control or Fenix Wi-Fi Control (see control details below — choose at time of purchase)
- 132 lbs of 2"–4" (5–10 cm) Round Olivine Diabase Sauna Stones
Product Specifications
Spirit SP90E Sauna Heater
| Model | SP90E |
| Room Size | 177 – 494 cu. ft. |
| Wattage | 9,000W |
| Voltage | 240V |
| Phase | 1PH |
| Amperage | 37.5A |
| Circuit Breaker | See Installation and Operation Manual |
| Wire Size AWG | 8 |
| Safety Listing | ETL (Electrical Testing Laboratories) |
| Minimum Ceiling Height | 75" (190 cm) |
| Safety Distance (Front to Back) | See Installation and Operation Manual |
| Safety Distance (Left to Right) | See Installation and Operation Manual |
| Stone Capacity | 110 lbs (49.9 kg) |
| Stone Size | 2" to 4" (5–10 cm) |
| Dimensions (W × D × H) | 15" × 13.1" × 29.5"H (38.1 × 33.3 × 74.9 cm) |
| Product Weight | 28.8 lbs (13.1 kg) |
| Shipping Weight (with Sauna Stones) | 160.8 lbs (72.9 kg) |
| Construction Material | Black Steel |
| Installation Type | Wall-Mount |
Xenio Wi-Fi Control (CX45-U1-U3-XW)
| Model | CX45-U1-U3-XW |
| Maximum Output | 10.8kW |
| Voltage | 240V |
| Phase | 1PH |
| Temperature Adjustment Range | 104–194°F |
| Pre-Setting Time Adjustment Range | 0–12 Hours |
| Dimensions (W × D × H) | 3.4" × 1" × 4.4"H (8.6 × 2.5 × 11.2 cm) |
| Installation Type | Surface or Flush-Mount — inside or outside sauna |
| Connectivity | Wi-Fi — remote control and monitoring via app |
| Controls | Time, temperature, lighting, and fan |
| Includes | Control, temperature sensor, power unit, manual, 1-year warranty |
Fenix Wi-Fi Control (FX45-U1-U3-XC)
| Model | FX45-U1-U3-XC |
| Maximum Output | 10.8kW (240V 1PH) / 15kW (208V 3PH) |
| Voltage | 240V / 208V |
| Phase | 1PH / 3PH |
| Temperature Adjustment Range | 104–194°F |
| Pre-Setting Time Adjustment Range | 0–12 Hours |
| Dimensions (W × D × H) | 3.4" × 1" × 4.4"H (8.6 × 2.5 × 11.2 cm) |
| Installation Type | Surface or Flush-Mount — inside or outside sauna |
| Connectivity | Wi-Fi — remote control and monitoring via app |
| Controls | Sauna heater, lighting, and ventilation |
| Special Features | AI learning — adapts to the performance of your sauna heater. High-quality glass screen panel. |
| Includes | Control panel, temperature sensor, power unit, data cable, installation materials, manual, 1-year warranty |
Sauna Stones
| Stone Type | Olivine Diabase |
| Shape | Round |
| Stone Size | 2" to 4" (5–10 cm) |
| Total Quantity Included | 132 lbs |
Technical Documents
| Installation & Operation Manual | |
| Data Sheet | Harvia-Spirit-Sauna-Heater-SP90E-Spec-Sheet.pdf |
| Brochure | Harvia-Spirit-Sauna-Heater-Brochure.pdf |
| Warranty | Download Warranty (PDF) |
Why Choose the Harvia Spirit SP90E PKG?
- Complete premium package — heater, Wi-Fi control, and stones all included
- 9kW output — the most powerful Spirit model, covering rooms up to 494 cu. ft.
- 110-pound stone capacity — far more than most wall-mounted heaters in its class
- Advanced integrated safety features enable safe Wi-Fi remote start
- Dual sensors monitor both heater and room temperature to prevent overheating
- Choice of Xenio Wi-Fi Control or Fenix AI Wi-Fi Control
- Elegant curved black design — a design statement as much as a heater
- ETL listed for safety and quality assurance
- Designed, engineered, and made in Finland
- 1-year limited warranty on all components