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True to tradition
Sisu Sauna
Finnleo® saunas are made in Finnish style exclusively of fine grained Nordic White Spruce. Sisu rooms are light and well-ventilated, with a subtle hint of deep Finnish forests. The extensive use of Abachi white wood makes it comfortable to the touch — even at high temperatures. Abachi has no knots or splinters and resists stains as well as odor absorption.
Pamper yourself with the soft, even heat from Finnleo® 's exclusive heater design. Direct contact between the elements and rocks eliminates the harsh metallic feel characteristic of lower-quality heaters
Pamper yourself with the soft, even heat from Finnleo® 's exclusive heater design. Direct contact between the elements and rocks eliminates the harsh metallic feel characteristic of lower-quality heaters
Sisu Packages at Watertree
With Finnleo® Saunas, you know you’re buying a meticulously crafted sauna room built from a tradition of quality. Benches are assembled from the bottom with stainless steel screws, and all wall panels are blind nailed, eliminating any exposed metal in the sauna.


Available at Watertree
Sisu Options:
Sisu saunas offer unlimited options, from personal size saunas to large club size saunas, making them equally ideal for private or public use. Custom designs and sizes are available as well, and interiors, windows, doors and much more can be personalized with a wide variety of options.
Abachi wood remains comfortable to the touch even at high temperatures, resists stains and odor absorption, and has no knots or splinters. It is the ultimate sauna bench material, and is used in the finest saunas of Europe. You can personalize your sauna with any number of available options including:
- Deluxe “Grande” interiors
- Deluxe “Sunburst” interiors
- Bronze tinted sidelite windows (tempered insulated glass)
- Special doors, including Finnleo® ‘s popular all-glass door or etched glass door
- Custom-designed dramatic angles
- Saunatonttu or Pikkutonttu heater upgrades
Personalize your sauna
Door options include:
- Clear Pine door with traditional window
- Clear Pine door with window and grids
- All-glass door (standard)
- Etched all-glass door with birch leaf design
- Etched birch leaf door with negative image
- Satin all-glass door for privacy
- Sidelight window options in multiple panel locations or tint options

Choose from several door and window styles to personalize your sauna and give it the look you want.
All doors are pre-hung and include handles and pre-installed recessed stainless steel ball catches (except the Clear Pine Door – which has self-closing hinges).