SaunaLife
SaunaLife S4B Wood-Burning Hot Tub β Black, Up to 6 Persons
SaunaLife S4B Wood-Burning Hot Tub β Black, Up to 6 Persons
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π SaunaLife Model S4B Wood-Burning Hot Tub β Black Finish (Up to 6 Persons)
This high-capacity tub offers spa-level immersion, luxury finishes, and purpose-built materials β engineered for comfort, durability and lasting performance.
Why choose this hot tub β and why it matters
Whether youβre relaxing after a long day, sharing time with friends or hosting a backyard wellness experience, the Model S4B gives you full-body immersion and European-crafted quality. It accommodates up to six bathers, holds approximately 304 gallons of water, and features a rugged exterior built to last.Β
With a premium dual-chamber stainless steel stove built into the unit and no electrical hookup required, you get the freedom of a true wood-fired soak.
This is more than a hot tub β itβs a retreat, a recovery zone, a way to bring outdoor luxury into your daily life.
Key Features & Benefits
- Wood-Burning Heater Included β The unit comes complete with a built-in stainless steel wood-fired stove, dual-chamber design for efficiency and rapid heat-up.
- Spacious Capacity (~304 Gallons) β Comfortably accommodates up to six bathers; interior dimensions ~71" diameter Γ 33" deep, exterior ~79" diameter Γ 37" high.Β
- Thermo-Spruce Exterior (painted black) β High-grade wood treated for durability; lasts up to twice as long as standard cedar in outdoor conditions.Β
- Ergonomic Fiberglass Interior β Contoured design, easy to clean, built for comfort.Β
- Rapid Heat-Up β Heats full capacity of water from cold to ideal temperature in approx. 1.5-2 hours, thanks to efficient stove and design.Β
- Eco-Friendly + Off-Grid Ready β No electrical connection required; ideal for outdoor, remote or low-power installations.
- Fully Assembled & Ready to Use β Delivered and ready for placement, so you can start soaking sooner.
Specifications at a Glance
| Feature | Detail |
|---|---|
| Water Capacity | Approx. 304 gallons Accurate Industries+1 |
| Exterior Dimensions | ~79" diameter Γ 37" high Select Saunas+1 |
| Interior Dimensions | ~71" diameter Γ 33" deep Sunflare Saunas & Spas+1 |
| Filled Weight | Approx. 3,064 lbs (when full) My Sauna World |
| Materials | Thermo-Spruce exterior, fiberglass interior Accurate Industries+1 |
| Stove / Heater | Stainless steel dual-chamber wood-burning unit (included) |
| Heat-Up Time | 1.5 β 2 hours to heat full volume Sunflare Saunas & Spas |
Installation & Use
- Site Requirements β A level and robust surface capable of supporting the tub when filled (3,000+ lbs).
- Delivery & Setup β Arrives fully assembled; place the unit, connect chimney, fill with water, add wood and light the stove.
- Usage Tips β Once heated, soak as desired; ideal for lounging, conversation, wellness routines or time with others.
- Maintenance β Regular rinse/clean the interior; inspect wood exterior yearly; drain and refresh water per usage.
- Outdoor Use Guidance β The treated Thermo-Spruce exterior is weather-resistant; protect plumbing in freezing climates.
Trust & Guarantees
- Secure Checkout β We use industry-standard encryption and secured payment processing to protect your data and transactions.
- Flexible Payment Methods β Major credit cards, digital wallets and financing options available to make payment convenient and accommodating.
- Manufacturer Craftsmanship Warranty β Backed by SaunaLifeβs limited warranty for structural materials and workmanship (residential use).Β
- Authorized Dealer Support β Buy confidently from an authorized distributor with full support for parts, service and customer assistance.
- Premium Materials Guarantee β The treated Thermo-Spruce construction is engineered to out-last standard cedar by a factor of up to two, delivering long-term durability.Β
If youβre ready to elevate your outdoor environment, impress your friends and family, and immerse yourself in a premium wellness experience β the SaunaLife Model S4B gives you unmatched quality, capability and style. With the wood-burning heater included, youβre equipped for full-scale soaking without compromise.
Invest in your space. Invest in your comfort. Own the experience.

- Description
- SaunaLife Warranty
- SaunaLife Shipping
π SaunaLife Model S4B Wood-Burning Hot Tub β Black Finish (Up to 6 Persons)
This high-capacity tub offers spa-level immersion, luxury finishes, and purpose-built materials β engineered for comfort, durability and lasting performance.
Why choose this hot tub β and why it matters
Whether youβre relaxing after a long day, sharing time with friends or hosting a backyard wellness experience, the Model S4B gives you full-body immersion and European-crafted quality. It accommodates up to six bathers, holds approximately 304 gallons of water, and features a rugged exterior built to last.Β
With a premium dual-chamber stainless steel stove built into the unit and no electrical hookup required, you get the freedom of a true wood-fired soak.
This is more than a hot tub β itβs a retreat, a recovery zone, a way to bring outdoor luxury into your daily life.
Key Features & Benefits
- Wood-Burning Heater Included β The unit comes complete with a built-in stainless steel wood-fired stove, dual-chamber design for efficiency and rapid heat-up.
- Spacious Capacity (~304 Gallons) β Comfortably accommodates up to six bathers; interior dimensions ~71" diameter Γ 33" deep, exterior ~79" diameter Γ 37" high.Β
- Thermo-Spruce Exterior (painted black) β High-grade wood treated for durability; lasts up to twice as long as standard cedar in outdoor conditions.Β
- Ergonomic Fiberglass Interior β Contoured design, easy to clean, built for comfort.Β
- Rapid Heat-Up β Heats full capacity of water from cold to ideal temperature in approx. 1.5-2 hours, thanks to efficient stove and design.Β
- Eco-Friendly + Off-Grid Ready β No electrical connection required; ideal for outdoor, remote or low-power installations.
- Fully Assembled & Ready to Use β Delivered and ready for placement, so you can start soaking sooner.
Specifications at a Glance
| Feature | Detail |
|---|---|
| Water Capacity | Approx. 304 gallons Accurate Industries+1 |
| Exterior Dimensions | ~79" diameter Γ 37" high Select Saunas+1 |
| Interior Dimensions | ~71" diameter Γ 33" deep Sunflare Saunas & Spas+1 |
| Filled Weight | Approx. 3,064 lbs (when full) My Sauna World |
| Materials | Thermo-Spruce exterior, fiberglass interior Accurate Industries+1 |
| Stove / Heater | Stainless steel dual-chamber wood-burning unit (included) |
| Heat-Up Time | 1.5 β 2 hours to heat full volume Sunflare Saunas & Spas |
Installation & Use
- Site Requirements β A level and robust surface capable of supporting the tub when filled (3,000+ lbs).
- Delivery & Setup β Arrives fully assembled; place the unit, connect chimney, fill with water, add wood and light the stove.
- Usage Tips β Once heated, soak as desired; ideal for lounging, conversation, wellness routines or time with others.
- Maintenance β Regular rinse/clean the interior; inspect wood exterior yearly; drain and refresh water per usage.
- Outdoor Use Guidance β The treated Thermo-Spruce exterior is weather-resistant; protect plumbing in freezing climates.
Trust & Guarantees
- Secure Checkout β We use industry-standard encryption and secured payment processing to protect your data and transactions.
- Flexible Payment Methods β Major credit cards, digital wallets and financing options available to make payment convenient and accommodating.
- Manufacturer Craftsmanship Warranty β Backed by SaunaLifeβs limited warranty for structural materials and workmanship (residential use).Β
- Authorized Dealer Support β Buy confidently from an authorized distributor with full support for parts, service and customer assistance.
- Premium Materials Guarantee β The treated Thermo-Spruce construction is engineered to out-last standard cedar by a factor of up to two, delivering long-term durability.Β
If youβre ready to elevate your outdoor environment, impress your friends and family, and immerse yourself in a premium wellness experience β the SaunaLife Model S4B gives you unmatched quality, capability and style. With the wood-burning heater included, youβre equipped for full-scale soaking without compromise.
Invest in your space. Invest in your comfort. Own the experience.
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.