SaunaLife Model S1B 1-Person Cold/Hot Immersion Tub, Black

$3,190.00

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Immersion Tub Covers

SaunaLife S1 Cover Insulated Cover for SaunaLife S1 series Hot and Cold plunge tubs
SaunaLife S1 Cover Insulated Cover for SaunaLife S1 series Hot/Cold plunge tubs (+$390.00)
Product price: $3,190.00
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SaunaLife Model S1B 1-Person Cold & Hot Immersion Tub, Black

SaunaLife S1B: a round one person cold plunge tub in black thermo-pine

The SaunaLife S1B is a one person cold plunge tub. It is round, about 40 inches across, and 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 gray fiberglass basin shaped so you can lean back and sink in. It holds 124 gallons. Matching black wood steps help you get in and out. When full, it weighs over half 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. 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. Plunging with a partner? See the SaunaLife S2B two person tub. The SaunaLife S1B ships from My Cozy Outdoors by flat rate freight with No Sales Tax (except WY) and the full manufacturer warranty.

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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.
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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.
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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.
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SaunaLife Cold Plunge 1 person

Features

  • Black Thermo-Pine materials (lasts up to 2X longer than Cedar)
  • Luxury outdoor cold/hot immersion tub
  • Designed for outdoor ergonomic cold/hot tub bathing experiences
  • Arrives fully assembled
  • Spacious interior holds over 124 gallons of pure water bathing pleasure
  • Thick contoured fiberglass lining provides enhanced bather comfort
  • Durable Black Thermo-Pine tub surround (1.65” thick 0.74cm)
  • Matching Black Thermo-Pine wood steps for easy access
  • Up to 1 bather
  • Exterior dimensions – 41.3 “H (105cm) x 40” Diameter (102cm)
  • Interior dimensions – 34.4″ Diameter (87cm) x 36″ Deep (91cm)
  • Designed by SaunaLife and handcrafted in Northern Europe

Includes

  • Thermowood walls 0.7″ (1.7cm)
  • Foundation Beams 3.94″ (10cm) x3.94″ (10cm)
  • Round Deluxe Stairs
  • Drainage 1″ (3cm)
  • Chiller Connections 3/4″ (2cm) NPT
  • Fiberglass Insert – Grey – Ergonomic

Specifications

Model MODEL S1B
Material Black Thermo-Pine
Interior Dimensions 34.4″ Diameter (87cm) x 36″ Deep (91cm)
Exterior Dimensons 41.3 “H (105cm) x 40” Diameter (102cm)
Water Capacity 124 Gallons
Product Weight when filled 1177 lbs (534kg)
Shipping Dimensions 47.8″L (121cm) x 46″W (117cm) x 48.1″H (122cm)
Shipping Weight 265 lbs (120kg)

FAQ

Can I use it hot as well as cold?

Yes, the S1B is a dual-purpose immersion tub: run it cold for post-training or post-sauna recovery, or fill it warm for hot-water immersion when you want to unwind sore muscles. One compact tub covers both sides of contrast therapy at home, which is the whole point of the design.

Is it chiller-ready?

Yes, 3/4-inch NPT chiller connections are built in, so you can plumb a chiller to hold genuine cold-plunge temperatures automatically rather than managing ice. Until you add one, it works fine as a fill-and-plunge tub, the fittings simply leave the upgrade path open whenever your routine gets more serious.

How much room does one person get?

The ergonomic fiberglass insert measures 34.4 inches across and 36 inches deep, holding 124 gallons, enough for a seated adult to submerge to the shoulders. Outside it is just 40 inches in diameter and 41.3 inches tall in black Thermo-Pine, so it tucks beside a sauna or onto a patio corner.

What setup does it need?

Very little: it arrives fully assembled with matching black stairs, foundation beams, and the contoured insert already in place. Set it on a firm, level surface, connect a garden hose, and fill. Bear in mind it weighs about 1,177 pounds full, so choose a spot that can carry the load.

Can I get a cover for it?

Yes, the Immersion Tub Covers selector on this page offers the insulated cover made for S1-series tubs, with its price shown right there. It keeps leaves and debris out and steadies the water temperature between sessions, which helps in both cold-plunge and hot-immersion use outdoors.

How do I empty it for a water change?

A built-in 1-inch drainage fitting empties the tub without bailing or siphoning, and the smooth fiberglass surface wipes clean before you refill from the hose. Regular water changes keep an unfiltered tub fresh. If you are still comparing sizes and finishes, 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.

Manual

SaunaLife-S1-Unpacking-Guide

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