Harvia
Harvia Spirit sauna heater
Harvia makes the Spirit in 3 sizes, from 6 to 9 kW, for saunas of 177 ft³ to 494 ft³. Slide to your room size to see which one fits, how fast it heats and what it needs from your fuse box.
Updated Oct 18, 2026
Output
6–9 kW
Rooms
177 ft³–494 ft³
Stones
110 lb–132 lb
Sizes
3
Which size fits your sauna?
Your room's effective volume
304 ft³
Best fit: SP80E
Work out your effective volumeEffective volume = inside volume, plus 1.2 m³ for every m² of glass, tile or stone; × 1.5 for solid log walls (Harvia's rule, used by most planners).
Sizes and specifications
| Model | Output | Room range | Stones | Heat-up | Per session |
|---|---|---|---|---|---|
| Spirit SP60E | 6 kW | 177 ft³–293 ft³ | 110 lb | 40–55 min | $1.10 |
| Spirit SP80E | 8 kW | 177 ft³–431 ft³ | 110 lb | 30–40 min | $1.29 |
| Spirit SP90E | 9 kW | 177 ft³–494 ft³ | 110 lb | 25–35 min | $1.37 |
Heat-up and cost are our heat model's estimate for each size in a room at the middle of its range: indoor, insulated walls, 68 °F around the sauna, heated to 176 °F, one hour of bathing, electricity at $0.18/kWh (United States average).
Electrical connection
| Output | single-phase 240 V |
|---|---|
| 6 kW | 25 A |
| 8 kW | 33.3 A |
| 9 kW | 37.5 A |
Current is computed from the output; fuse and cable are shown where the maker or dealer states them. A licensed electrician sizes and installs the circuit following the heater's manual and local rules.
Where to see it
- Spirit SP60E$1,715 at topture.com (2026-10-17)
- Spirit SP80E$1,777 at topture.com (2026-10-17)
- Spirit SP90E$1,930 at topture.com (2026-10-17)
Prices and availability come from the shop or maker and change; their page is what counts. Shop offers are added as retailers join.
Sources
- esaunashop.com/electric-sauna-heater-harvia-spirit-sp60edealer · read 2026-10-18
- esaunashop.com/electric-sauna-heaters-harvia-spirit-sp60fc-6-0-kw-fenix-wifi-setdealer · read 2026-10-18
- topture.com/products/harvia-spirit-6kw-electric-sauna-heater-sp60edealer · read 2026-10-17
- topture.com/products/harvia-spirit-8kw-electric-sauna-heater-sp80edealer · read 2026-10-17
- topture.com/products/harvia-spirit-9kw-electric-sauna-heater-sp90edealer · read 2026-10-17
- esaunashop.com/electric-sauna-heaters-harvia-spirit-sp90fc-9-0-kw-fenix-wifi-setdealer · read 2026-10-18
Other heaters for the same rooms
Questions and answers
What size sauna does the Harvia Spirit heat?
Harvia rates the sizes for these rooms: Spirit SP60E 177 ft³–293 ft³; Spirit SP80E 177 ft³–431 ft³; Spirit SP90E 177 ft³–494 ft³. Use your room's effective volume: add 1.2 m³ for every m² of glass, tile or stone, and multiply by 1.5 for solid log walls.
What fuse or breaker does the Harvia Spirit need?
It depends on the size and your supply: Spirit SP60E: 1~ 240 V: 25 A; Spirit SP80E: 1~ 240 V: 33.3 A; Spirit SP90E: 1~ 240 V: 37.5 A. A licensed electrician sizes the circuit from the heater's manual and local rules.
How long does the Harvia Spirit take to heat up?
In a well-insulated indoor room at the middle of each size's range, our heat model gives: Spirit SP60E 40–55 min; Spirit SP80E 30–40 min; Spirit SP90E 25–35 min to reach 176 °F. Outdoor saunas, glass and cold weather take longer.
How many stones does the Harvia Spirit take?
As stated by Harvia: Spirit SP60E 110 lb; Spirit SP80E 110 lb; Spirit SP90E 110 lb. Use the stone size the manual specifies and re-stack the stones at least once a year, replacing crumbled ones.