SaunaLife S6B: a large wood fired tub with a black wood surround
The SaunaLife S6B is an outdoor wood fired hot tub for up to seven people. It measures 89 inches across and holds 436 gallons, with the wood stove sitting inside the tub. No electricity is needed to heat the water. The black surround is thermo spruce, which means spruce baked in a kiln to resist moisture and rot. This treatment helps it last up to twice as long as cedar. Inside, a thick black fiberglass liner is shaped for comfortable seating. Matching black wood steps give you a way into the tub.
The tub arrives fully assembled, with its stainless steel stove and capped chimney included. The stove uses separate heat compartments to warm the water. A folding insulated cover with a dark gray vinyl exterior helps hold the heat between uses. There is also a drain tap for emptying the tub. You can add wood wax, paraffin oil, or cleaner on this page for wood care. Considering another wood fired tub? See the SaunaLife S6N hot tub. The SaunaLife S6B ships from Norse Steam by flat rate freight with No Sales Tax (except WY) and our 100% price match guarantee.
SaunaLife Outdoor Saunas
These rooms let you stay connected to your natural surroundings during each session. Crafted from high-grade, thermally modified wood, each space is built to withstand changing weather year after year.
The features within each room work together to create a comfortable bathing environment. Select from a variety of sizes and styles in the SaunaLife Outdoor Sauna Collection.
Barrel Outdoor Saunas
Create a personal backyard sauna sanctuary with SaunaLife outdoor sauna barrels. These spaces deliver a relaxing experience just steps from your home.
SaunaLife barrel saunas are ergonomically engineered for comfort, with contoured seating and wood slanted backrests. Available in a variety of sizes and configurations to suit your needs.
Cube-Series Saunas
Premium materials are evident throughout the Cube-Series lineup. The exterior is built from durable, full-length Thermo-Spruce staves that have been organically thermally enhanced, making them stronger, more dimensionally stable, and naturally resistant to decay and pests without chemical treatment. A complete shingle kit with drip rails ensures effective water management. The bronze-tinted 8mm tempered glass front door is both a design statement and a safety feature.
The CL3G specifically uses 42mm Thermo-Spruce staves for the side walls and 28mm panels for the front and back, with stainless steel barrel bands that cinch the structure together without exposed fasteners- the same joinery approach used across SaunaLife’s broader CL-series lineup. The kit includes foundation cradles, so the sauna sits level on a gravel pad, pavers, or a small concrete slab without requiring a poured perimeter foundation.
SaunaLife Wood-Burning Hot Tubs
These wood-fired hot tubs arrive completely assembled and are straightforward to set up. The ergonomically shaped fiberglass tub comfortably seats up to 6 people. The interior surface is easy to clean, and the exterior is crafted from thermally enhanced spruce for weather resistance and durability.
SaunaLife Cold Plunges
Pre-assembled for easy installation, the Thermo-Pine wood exterior will last up to 2X longer than cedar and offers superior thermal resistance. The spacious fiberglass tub is contoured to your body, with a 200-gallon water capacity. Matching Thermo-Pine stairs make entry and exit easy. SaunaLife cold plunge models pair naturally with the CL3G for contrast therapy sessions.




































































