The Harvia Spirit 8 kW Electric Sauna Heater is a premium wall-mounted electric sauna heater designed for sauna rooms from 177 to 431 cubic feet (5–12 m³). Its elegantly curved design and open stone structure create a modern yet natural look, especially when paired with round sauna stones.

Engineered for performance and safety, the Spirit heats the sauna quickly and evenly, while incorporating advanced safety features. An integrated safety sensor prevents the heater from turning on if items are placed on top—ideal for safe remote starting. Two additional sensors monitor the heater and sauna temperature to prevent overheating.

The Harvia Spirit holds up to 110 lb (50 kg) of stones, producing soft, consistent heat and steam. Its symmetrical design allows flexible installation on either side of the sauna for a clean, balanced look.

The Harvia Spirit 8 kW requires a Harvia control unit (sold separately) — Xenio CX45-U1-U3-XW or Harvia Fenix Smart Wi-Fi Control (FX45-U1-U3-XC) — and is Wi-Fi compatible via the MyHarvia app (Fenix uses MyHarvia 2). The splash-proof control panel can be mounted inside or outside the sauna. With Fenix, Core app features (remote monitoring + notifications) are free, while full remote control requires an optional one-time Control upgrade ($134.99) (no subscription; eligible products include a 3-month trial).

⚠️ Control unit and sauna stones sold separately.

• Stylish and high-quality Finnish made sauna heater
• Heats up the sauna very quickly
• Stainless steel interior finishing elements
• Integrated safety functions ensure safe use
• Recommended stone variety: round Olivine diabase Ø 5-10 cm
• Made in Finland
• Certificates: UL/cUL Listed (UL 875), meeting safety regulations for electric sauna heaters in North America.
• Warranty: Up to 3 years for residential use (2 years + 1 year with registration)