SaunaLife
SaunaLife Model S1B 1-Person Hot & Cold Plunge Tub – Black Finish
SaunaLife Model S1B 1-Person Hot & Cold Plunge Tub – Black Finish
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SaunaLife Model S1B – 1-Person Hot & Cold Plunge Tub (Black Finish)
Transform your wellness routine with professional-grade immersion. Designed for contrast therapy, recovery and daily renewal, this single-person tub brings spa-style recovery into your home. Crafted with premium materials and Scandinavian design. Ships to U.S. residences (see “Shipping Info” tab for details).
Why This Tub—and Why It Matters
Whether you’re an athlete recovering post-workout, a sauna-enthusiast exploring contrast therapy, or simply someone who values high-quality home wellness gear, the Model S1B delivers.
With capacities designed for full-body immersion, sleek black Thermo-Pine construction, and a comfortable fiberglass interior, this tub is built for performance and longevity.
Cold-water immersion has been shown to support reduced inflammation, improved circulation and enhanced recovery. And warm-water immersion supports muscle relaxation, stress relief and better rest. This tub gives you the flexibility for both.
Key Features & Benefits
- Hot & Cold Immersion – Use the tub for cold-water plunges (inflammation/support/recovery) or for warm/hot immersions (muscle relaxation, stress relief).
- Sleek Black Thermo-Pine Exterior – Engineered for durability and aesthetics. The Thermo-Pine finish offers up to 2 × the lifespan of traditional cedar.
- Ergonomic Fiberglass Interior – Comfortable, contoured seating and durable finish.
- Single-Person, Efficient Footprint – 124-gallon capacity is designed for individual use without needing sprawling space.
- Pre-Assembled & Ready to Use – Arrives ready for installation, reducing setup hassle.
- Integrated Chiller Connections (Not Included/Not Available With This Brand) – The tub includes fittings for chiller connections (¾″ NPT) but chillers are not offered or supported through the SaunaLife line. (Note: You may need to source compatible equipment independently if you wish to add cooling capability).
- Premium Craftsmanship – Designed and handcrafted in Northern Europe for high-quality finish and longevity.
Specifications
| Feature | Detail |
|---|---|
| Exterior Dimensions | 41.3″ H × 40″ Ø (≈ 105 cm × 102 cm) |
| Interior Dimensions | 34.4″ Ø × 36″ deep (≈ 87 cm × 91 cm) |
| Capacity | ~124 gallons |
| Construction | Thermowood (Thermo-Pine) walls ~0.7″ (1.7 cm) thick |
| Foundation Beams | 3.94″ × 3.94″ (10 cm × 10 cm) beams |
| Insert | Fiberglass ergonomic interior, grey finish |
| Drain | 1″ / 3 cm drain included |
| Chiller Connection | ¾″ NPT port included, but chiller is not included; brand does not supply one |
How to Use
- Prepare – Ensure the tub is installed on a level pad or solid surface. Fill with water to recommended level.
- Set & Use – For cold-immersion, aim for temperate ranges aligned with your protocol (if using an external chiller). For hot immersion, use warm water as desired.
- Immerse – Beginners may start with shorter cold dips (1–3 minutes) and build time gradually; for hot-immersion, consider 10–20 minutes (or per your wellness routine).
- Recover – After use, warm up gradually (via sauna, shower or relaxing environment).
- Routine – Use this tub as part of a scheduled wellness or recovery regimen; consistency drives benefit.
Installation & Maintenance
- Site Requirements – Needs a level base capable of supporting the filled weight (~1,000+ lbs depending on water volume). Access for drain hose recommended.
- Delivery – Arrives on pallet, curbside delivery only. See “Shipping Info” tab for details.
- Cleaning & Care – Rinse after each use, drain and refill per your usage frequency. Keep cover on (if you choose a compatible cover) to reduce debris and maintain water quality.
- Outdoor Use – Thermo-Pine offers improved weather resistance vs cedar, but ensure plumbing/drainage are protected if installed outdoors.
- Chiller Note – Because the brand does not supply a chiller unit, if you choose to add one you will need to ensure compatibility and proper installation, including power and hose/drain connection.
Frequently Asked Questions
Is a chiller included? No — The Model S1B includes a connection port for cooling equipment, but the brand does not provide or support a chiller. If you want cooling, you’ll need to secure a compatible unit separately.
Is the tub fitted with a cover? No — A cover is not included and must be obtained separately if desired (please ensure compatibility with Thermo-Pine style).
Can it be used outdoors? Yes — The Thermo-Pine construction improves durability for outdoor use; we recommend protecting plumbing/drainage in cold climates.
What are the shipping terms? See the “Shipping Info” tab. Generally, flat-rate freight to the contiguous U.S., curbside delivery only.
What about warranty? Provided by SaunaLife; see manufacturer warranty info for details.
The SaunaLife Model S1B is an elegant, high-quality solution for single-person immersion therapy—bringing hot and cold plunge capabilities into your personal space with sauna-grade design and materials. If you’re ready to invest in your recovery, contrast therapy or personal wellness environment, this tub delivers Spa-level performance in a residential footprint.
Disclaimer: Chiller and cover sold separately and must be sourced independently for cold-immersion functionality.

- Description
- SaunaLife Warranty
- SaunaLife Shipping
SaunaLife Model S1B – 1-Person Hot & Cold Plunge Tub (Black Finish)
Transform your wellness routine with professional-grade immersion. Designed for contrast therapy, recovery and daily renewal, this single-person tub brings spa-style recovery into your home. Crafted with premium materials and Scandinavian design. Ships to U.S. residences (see “Shipping Info” tab for details).
Why This Tub—and Why It Matters
Whether you’re an athlete recovering post-workout, a sauna-enthusiast exploring contrast therapy, or simply someone who values high-quality home wellness gear, the Model S1B delivers.
With capacities designed for full-body immersion, sleek black Thermo-Pine construction, and a comfortable fiberglass interior, this tub is built for performance and longevity.
Cold-water immersion has been shown to support reduced inflammation, improved circulation and enhanced recovery. And warm-water immersion supports muscle relaxation, stress relief and better rest. This tub gives you the flexibility for both.
Key Features & Benefits
- Hot & Cold Immersion – Use the tub for cold-water plunges (inflammation/support/recovery) or for warm/hot immersions (muscle relaxation, stress relief).
- Sleek Black Thermo-Pine Exterior – Engineered for durability and aesthetics. The Thermo-Pine finish offers up to 2 × the lifespan of traditional cedar.
- Ergonomic Fiberglass Interior – Comfortable, contoured seating and durable finish.
- Single-Person, Efficient Footprint – 124-gallon capacity is designed for individual use without needing sprawling space.
- Pre-Assembled & Ready to Use – Arrives ready for installation, reducing setup hassle.
- Integrated Chiller Connections (Not Included/Not Available With This Brand) – The tub includes fittings for chiller connections (¾″ NPT) but chillers are not offered or supported through the SaunaLife line. (Note: You may need to source compatible equipment independently if you wish to add cooling capability).
- Premium Craftsmanship – Designed and handcrafted in Northern Europe for high-quality finish and longevity.
Specifications
| Feature | Detail |
|---|---|
| Exterior Dimensions | 41.3″ H × 40″ Ø (≈ 105 cm × 102 cm) |
| Interior Dimensions | 34.4″ Ø × 36″ deep (≈ 87 cm × 91 cm) |
| Capacity | ~124 gallons |
| Construction | Thermowood (Thermo-Pine) walls ~0.7″ (1.7 cm) thick |
| Foundation Beams | 3.94″ × 3.94″ (10 cm × 10 cm) beams |
| Insert | Fiberglass ergonomic interior, grey finish |
| Drain | 1″ / 3 cm drain included |
| Chiller Connection | ¾″ NPT port included, but chiller is not included; brand does not supply one |
How to Use
- Prepare – Ensure the tub is installed on a level pad or solid surface. Fill with water to recommended level.
- Set & Use – For cold-immersion, aim for temperate ranges aligned with your protocol (if using an external chiller). For hot immersion, use warm water as desired.
- Immerse – Beginners may start with shorter cold dips (1–3 minutes) and build time gradually; for hot-immersion, consider 10–20 minutes (or per your wellness routine).
- Recover – After use, warm up gradually (via sauna, shower or relaxing environment).
- Routine – Use this tub as part of a scheduled wellness or recovery regimen; consistency drives benefit.
Installation & Maintenance
- Site Requirements – Needs a level base capable of supporting the filled weight (~1,000+ lbs depending on water volume). Access for drain hose recommended.
- Delivery – Arrives on pallet, curbside delivery only. See “Shipping Info” tab for details.
- Cleaning & Care – Rinse after each use, drain and refill per your usage frequency. Keep cover on (if you choose a compatible cover) to reduce debris and maintain water quality.
- Outdoor Use – Thermo-Pine offers improved weather resistance vs cedar, but ensure plumbing/drainage are protected if installed outdoors.
- Chiller Note – Because the brand does not supply a chiller unit, if you choose to add one you will need to ensure compatibility and proper installation, including power and hose/drain connection.
Frequently Asked Questions
Is a chiller included? No — The Model S1B includes a connection port for cooling equipment, but the brand does not provide or support a chiller. If you want cooling, you’ll need to secure a compatible unit separately.
Is the tub fitted with a cover? No — A cover is not included and must be obtained separately if desired (please ensure compatibility with Thermo-Pine style).
Can it be used outdoors? Yes — The Thermo-Pine construction improves durability for outdoor use; we recommend protecting plumbing/drainage in cold climates.
What are the shipping terms? See the “Shipping Info” tab. Generally, flat-rate freight to the contiguous U.S., curbside delivery only.
What about warranty? Provided by SaunaLife; see manufacturer warranty info for details.
The SaunaLife Model S1B is an elegant, high-quality solution for single-person immersion therapy—bringing hot and cold plunge capabilities into your personal space with sauna-grade design and materials. If you’re ready to invest in your recovery, contrast therapy or personal wellness environment, this tub delivers Spa-level performance in a residential footprint.
Disclaimer: Chiller and cover sold separately and must be sourced independently for cold-immersion functionality.
SAUNA LIFE SAUNA LIMITED LIFETIME WARRANTY
Sauna Life extends this Limited Warranty solely to the original retail consumer purchaser of any Sauna Life sauna purchased from one of its authorized resellers.
LIMITED LIFETIME SAUNA WARRANTY
Sauna Life warrants that the Sauna Life sauna shall be free from defects in workmanship under normal conditions of use and service for the lifetime of the sauna for residential applications after delivery to the original retail purchaser. This warranty is limited to making good any factory assembled component which in the judgment of Sauna Life is deemed defective in workmanship. The warranty does not cover normal material wear, natural weathering of the lumber, or installation or delivery of components and applies only to the original retail purchaser.
WARRANTY PERFORMANCE
For any warranty service, Sauna Life reserves the right to choose, at its option, repair of the problem or a replacement of the defective part. Sauna Life reserves the right to substitute a part or component of
equivalent value, either new or factory reconditioned, and any such repair or replacement shall assume as its warranty only the remaining portion of the warranty on the original product. In the event Sauna Life chooses to repair any malfunction or defect covered by this warranty, a return authorization will be is- sued, and the component will be returned prepaid freight to Sauna Life for repair of the defect. Sauna Life will then ship the component back the original retail purchaser upon completion of the repair. Prior to any return, contact Sauna Life at: Sauna Life, 511 Glenn Avenue, Wheeling, Illinois 60090, telephone number: (800) 957-2862, for packaging and shipping instructions and a return authorization number. In addition, Sauna Life will require photographs of any defect and reserves the right to inspect or designate an agent to inspect any part that is claimed to be defective and covered by this warranty. Labor charges and related expenses for removal, installation, or replacement of the sauna or its components are not covered under this warranty. Normal wear and tear, cosmetic issues or changes to individual pieces of lumber due to nat- ural aging and weathering are not covered. Sauna heaters and added components are not covered by this warranty.
ACTS INVALIDATING WARRANTY
This warranty is void if the Sauna Life sauna has been subject to alteration, misuse or abuse, commercial use, or if any repairs on the sauna are attempted by anyone other than an authorized representative of Sauna Life. Alteration shall include, but is not limited to, deviation from the original assembly instructions, component change, or the addition of any non-approved device or heating system, which contributes to a component or unit failure, or unsafe operating system. Use of the sauna in an application for which it is not designed will void this warranty. This includes, but is not limited to, damage caused by operation above safe sauna operating temperatures, damage caused by added components, damage to the sauna’s surface caused by harsh chemicals, damage caused by movement of the product, and damage caused by acts of God.
DISCLAIMERS
Except as expressly provided above, Sauna Life makes no other representation or warranty, express or im- plied, either in fact or operation of law, statute, or otherwise, and Sauna Life specifically disclaims any and all implied or statutory warranties, including warranties or merchantability and of fitness for a particular purpose. Sauna Life shall not be liable for loss of use of the Sauna Life sauna or other incidental or conse- quential costs, expenses, or damage, which may include but are not limited to, the removal of or reinstal- lation of a wall, deck or other fixture, water leakage, costs of shipping or packaging, applicable taxes, or the payment of any costs or expenses of disassembly, removal, or reinstallation of the product or any part. Your rights may vary from state to state. Under no circumstances shall Sauna Life or its representatives be held liable for injury to any person or damage to any property, however arising, even if caused by the Sau- na Life Sauna or its representatives’ negligence. No distributor, salesperson, dealer, retailer, or other rep- resentative of Sauna Life has the authority to alter or change these warranties either orally or in writing.
Flat Rate Freight: Flat rate shipping to the contiguous United States. Note: On rare occasions, remote or complex delivery areas may not qualify for these rates.
About This Delivery: The weight and packaging of this handcrafted tub requires delivery by special appointment. It arrives on a wooden pallet encased in wood for solid protection. The driver is responsible for “curbside delivery only” and will lower the item to ground level. Prior to shipping this product, we often 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.
5.0
SaunaLife Model S1B 1-Person Hot & Cold Plunge Tub – Black Finish Review Summary
5.0
What people like
Pros
- Dual Hot/Cold: Users appreciate the versatile therapeutic benefits of both hot and cold immersion, noting its effectiveness for recovery and muscle relaxation.
- Durable Construction: The black Thermo-Pine exterior is highly valued for its durability, lasting up to twice as long as cedar, offering superior thermal resistance, and being eco-friendly and low-maintenance.
- Comfortable Interior: The ergonomic fiberglass interior is noted for providing a comfortable and spacious experience, allowing for full body submersion within its 124-gallon capacity.
- Ready to Use: The tub's fully assembled design ensures a hassle-free setup, requiring no additional tools or complex installation.
- Easy Maintenance: Reviewers mention the tub's liner is easy to keep clean.
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