
SaunaLife S2B: a two person cold plunge and warm soak tub in black thermo-pine
The SaunaLife S2B is a two person tub for cold plunges or warm soaks. It arrives fully assembled. The outside is black thermo-pine, which is pine baked in a kiln so it stands up to water and weather. Inside is a smooth black fiberglass basin shaped so two people can lean back and sink in. It takes up about 74 by 46 inches of patio and holds 200 gallons. Full, it weighs over three quarters of a ton, so it needs a firm, level base.
It comes with the basin, the foundation beams, the steps, a drain, and fittings for a chiller. The matching black wood steps help you get in and out. Fill it cold for a plunge after the sauna, hook up a chiller of your own to keep it cold, or fill it warm for a soak. An insulated cover is optional on the page. Prefer the natural wood look? See the SaunaLife S2N immersion tub. The SaunaLife S2B ships from My Cozy Outdoors by flat rate freight with No Sales Tax (except WY) and the full manufacturer warranty.
SaunaLife combines innovative engineering with meticulous craftsmanship to create spaces that are beautiful, comfortable, and built for a lifetime of enjoyment and good health. The level of quality and attention to detail that goes into each design is off the charts.
Hand-crafted in Northern Europe by sauna fanatics, each room is created especially for those who understand and crave the health and wellness benefits of sauna bathing. SaunaLife builds each room as if we were making it for ourselves.
SaunaLife Outdoor Saunas
These innovative rooms provide the ability to enjoy your natural surroundings during each sauna session. Crafted of the highest-grade wood materials, each space is designed to withstand changing weather conditions.
The features within each room work in unison to create a comfortable bathing sanctuary that both soothes and invigorates. Select from a variety of sizes and styles of outdoor sauna cabins that best suit your design needs and preferences.
Barrel Outdoor Saunas
Create a personal backyard sauna sanctuary with SaunaLife outdoor sauna barrels. These innovative spaces provide a relaxing experience steps away from your home.
SaunaLife barrel saunas are ergonomically engineered for superior comfort, with contoured seating and arched, and wood slanted backrests. These spaces are available in a variety of sizes and configurations to best suit your bathing needs.
Cube-Series Saunas
Premium quality materials are evident everywhere on Cube-Series Saunas. The exterior wood is made from durable full-length staves that have been organically thermally enhanced. This Thermo-Spruce wood is stronger, more dimensionally stable, naturally resists decay and pests, and will far outlast conventional wood. A complete shingle kit with drip rails ensures superior water management and a dry interior. The bronze-tinted 8mm thick front door is both beautiful and tempered for your safety.
SaunaLife Wood-Burning Hot Tubs
These wood-fired hot tub arrives completely assembled and is easy to set up. Its ergonomically shaped fiberglass tub is a comfortable place for up to 6 people. The interior surface is easy to clean, and the exterior is crafted from thermally enhanced spruce for superior weather resistance and durability.
SaunaLife Cold Plunges
Pre-assembled for easy installation, the enhanced Thermo-Pine wood exterior will last up to 2X longer than cedar and has superior thermal resistance. The spacious fiberglass tub contoured for the shape of your body has a 200-gallon water capacity to allow you to submerge in comfort. Matching Thermo-Pine stairs make it easy to get in and out of the tub.
FAQ
What does the black finish include?
The S2B pairs a black Thermo-Pine exterior with a black ergonomic fiberglass insert and matching black stairs, so the whole tub reads as one piece. If you prefer lighter wood, the same two-person tub comes as the S2N in a natural finish; capacity and construction are otherwise identical.
Can two people plunge at the same time?
Yes, the interior is 66.5 inches long by 39.1 inches wide and 36 inches deep with a 200-gallon capacity, seating two adults facing each other at shoulder-depth submersion. It turns cold exposure into something you can share, which for many people is what makes the habit stick.
Can I hook up a chiller to keep it cold?
Yes, 3/4-inch NPT chiller connections are included, so a chiller can hold the water at true cold-plunge temperatures automatically. Without one it still works as a classic fill-and-plunge tub, and the 1-inch drainage fitting makes the regular water changes that keep an unfiltered tub fresh quick to do.
Does it work for hot soaks too?
Yes, it is a dual-purpose immersion tub: choose the revitalizing cold-water plunge or fill it warm for indulgent hot-water immersion when your muscles need soothing rather than shocking. That flexibility means the tub earns its patio space in every season, not just summer training months.
How heavy is it once filled?
About 1,665 pounds with its 200 gallons of water, so site it on a firm, level surface that can carry the load, a concrete pad, pavers, or a reinforced deck. Empty, it ships at 396 pounds and arrives fully assembled with the stairs, so positioning it before filling is a two-person job.
Is a cover available for this tub?
Yes, the Immersion Tub Covers selector on this page offers the insulated S2-series cover, priced on the selector, which keeps debris out and holds your water temperature steadier between sessions. To weigh this model against the rest of the line, browse our full cold plunge collection.
Shipping
Flat Rate Freight: $495 flat rate shipping included in the price to the contiguous United States. $200 extra for Canada. Call for quote to Alaska/Hawaii/Puerto-Rico. Note: On rare occasions, remote or complex delivery areas may not qualify for this rate
About This Delivery: The weight and packaging of this handcrafted sauna sanctuary requires delivery by special appointment, and on a wooden pallet. The driver is responsible for “curbside delivery only” and will lower the items to ground level. Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.