Custom indoor fit
Choose a layout within Finnleo's published 4' x 5' to 7' x 8' size range, with woods and glazing selected for your space.
Sisu Sauna
A custom, free-standing traditional sauna built around your indoor space.
TraditionalSauna type
IndoorSetting
Finnleo electric heater, selected for the designHeater
Custom SaunasCollection
Authorized Dealer
Site Planning Guidance
Delivery & Placement
Manufacturer Warranty
Complete model guide
Everything to know about the Sisu.
Model details, options and planning in one place.
Finnleo Sisu is a custom, free-standing traditional sauna for an existing indoor room. Choose the footprint, woods, bench layout, door, windows and electric heater with your showroom; Finnleo builds the panels and components to the approved design.
Sisu is available through Southern Leisure showrooms in Arlington, Flower Mound, Richardson, Austin and San Antonio. Ask a local product specialist about display models, delivery and current dealer pricing.
- Sauna Type
- Traditional
- Style
- Free-standing
- Installation Area
- Indoor
- Custom Size Range
- 4' x 5' to 7' x 8'
- Ceiling Height Range
- 78" to 96"
- Heater
- Finnleo electric heater, selected for the design
- Controls
- SaunaLogic2
- Lighting
- LED RGBW
- Audio
- Bluetooth soundbar optional
Traditional heat
A genuine Finnleo electric heater, rocks and heater guard are included; the exact heater is selected for the approved design.
Prebuilt sauna kit
Finnleo prepares the wall and ceiling panels, benches, backrests, prehung door and hardware for final assembly.
Controls and lighting
SaunaLogic2 controls and LED RGBW lighting are included. A Bluetooth soundbar is an optional upgrade.
Custom indoor fit
Choose a layout within Finnleo's published 4' x 5' to 7' x 8' size range, with woods and glazing selected for your space.
Traditional heat
A genuine Finnleo electric heater, rocks and heater guard are included; the exact heater is selected for the approved design.
Prebuilt sauna kit
Finnleo prepares the wall and ceiling panels, benches, backrests, prehung door and hardware for final assembly.
Controls and lighting
SaunaLogic2 controls and LED RGBW lighting are included. A Bluetooth soundbar is an optional upgrade.
Similar Saunas
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Finnleo Permanently-Installed Saunas: Custom Saunas traditional saunas.
- Sauna TypeTraditional
- Heat SourceElectric
- SettingIndoor
- StyleBuilt-In
Explore this modelDetails & pricing
5-Person Sauna
- Capacity4–5 people
- Sauna TypeTraditional
- Size84"×72"×84"
- HeaterDesigner-SL2
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5-Person Sauna
- Capacity4–5 people
- Sauna TypeTraditional
- Size84"×72"×84"
- HeaterDesigner-SL2
Explore this modelDetails & pricing
5-Person Sauna
- Capacity4–5 people
- Sauna TypeTraditional
- Size84"×72"×84"
- HeaterHimalaya 7.0 kW
Before you choose the Sisu.
Clear answers for planning the product, site and delivery.Yes. Ask Arlington, Flower Mound, Richardson, Austin or San Antonio whether this model or a close comparison is currently on display. Showroom selection changes, so confirm before you travel.
The health side of Finnish heat.
Finland has used the sauna for centuries. Here is what research says regular heat bathing can do.
Good for your heart
Long-term studies link regular sauna use with lower rates of heart disease.
Source: Harvard Health ↗Lower blood pressure
Frequent sauna bathing is linked to lower blood pressure over time.
Source: Harvard Health ↗Loosens tight muscles
Heat increases blood flow, which can help tense muscles relax.
Source: Harvard Health ↗A calm end to the day
The heat relaxes the body, and many people use it as a wind-down ritual.
Source: Harvard Health ↗
Most healthy adults keep sessions to 15 to 20 minutes, drink water and skip alcohol. Ask your doctor first if you have heart disease or uncontrolled blood pressure. Harvard Health ↗
Watch
See the Finnleo in motion.
This Finnleo film shows the whole Finnleo, the collection the Sisu belongs to. Seats, jets and features vary by model.
More about FinnleoSisu vs. other saunas.
Same build quality. Different size, seating and features.
| Specification |  Sisu |  Custom Outdoor | Permanently-Installed Saunas | Twilight Sauna |
|---|---|---|---|---|
| Sauna Type | Traditional | - | - | - |
| Style | Free-standing | Custom kit for a framed structure | Built-In | Free-Standing |
| Installation Area | Indoor | Outdoor | Indoor | Indoor |
| Custom Size Range | 4' x 5' to 7' x 8' | - | - | - |
| Ceiling Height Range | 78" to 96" | - | - | - |
| Heater | Finnleo electric heater, selected for the design | - | - | Designer-SL2 |
| Controls | SaunaLogic2 | - | - | - |
| Lighting | LED RGBW | - | - | - |
| Link | This model | View Custom Outdoor → | View Permanently-Installed Saunas → | View Twilight Sauna → |