SaunaLife S1B: a fully assembled black tub for cold or hot soaks
The SaunaLife S1B is an outdoor cold and hot immersion tub for one person. Its black thermo wood surround and black fiberglass interior give it the same color inside and out. It arrives fully assembled and holds 124 gallons of water. The tub measures 40 inches across and stands 41.3 inches tall, so you can check its size against the spot you have in mind. Inside the wood surround, the fiberglass shell follows the shape of your body. Matching black wood steps come with the tub to help you get in and out.
The tub includes a drain for emptying the water and connections for a chiller. You can also add the optional SaunaLife S1 Cover on this page if you want an insulated cover for the tub. Prefer the look of natural wood? See the SaunaLife S1N cold and hot immersion tub. The SaunaLife S1B 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.








































































