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SaunaLife Model S4B

SaunaLife Model S4B

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Full Warranty Included

Regular price $5,990.00 USD
Regular price $6,497.00 USD Sale price $5,990.00 USD
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SaunaLife Model S4B

Soak Series Home Wood-Burning Hot Tub, Black, Up to 6 Persons
SKU: SL-MODELS4B   |  Model: MODEL S4B

Experience the ultimate in backyard relaxation with the SaunaLife Model S4B Tub, a premium wood-fired hot tub inspired by Nordic craftsmanship. Designed for comfort, performance, and natural beauty, this spacious tub accommodates up to six people and offers a true off-grid soaking experience—no electricity or high utility costs required.
Crafted from high-grade, weather-resistant Thermo-Spruce, the Model S4B is built to endure the elements while maintaining its refined, natural look. Inside, the ergonomically contoured fiberglass tub provides exceptional comfort and is easy to clean, making it perfect for both entertaining and everyday use. The unit arrives fully assembled, so setup is quick and hassle-free.
At the heart of the Model S4B is a high-efficiency, integrated wood-burning stove engineered in Northern Europe for superior performance. This advanced system heats water up to three times faster than traditional wood-fired tubs, bringing 304 gallons from 40°F to 95°F in as little as 1.5 to 2 hours. Its innovative corrugated design includes a secondary combustion chamber that captures and reuses heat from smoke, reducing wood consumption by up to 50%.
To ensure consistent water temperature, the system circulates cooler water through a lower channel and redistributes it through an upper channel. Additionally, the space between the fiberglass liner and the outer wood shell is super-heated, further accelerating the heating process.
Whether you're hosting friends or enjoying a quiet evening soak, the SaunaLife Model S4B transforms your outdoor space into a serene, spa-like retreat—blending traditional wood-fired heating with modern efficiency and design.
  • Black Thermo-Spruce materials (lasts up to 2X longer than Cedar)
  • Luxury outdoor wood-burning hot tub
  • Designed for outdoor ergonomic hot tub bathing experiences
  • Arrives fully assembled and no electricity required (eco-friendly)
  • Spacious interior holds over 304 gallons of pure water bathing pleasure
  • Thick black contoured fiberglass lining provides enhanced bather comfort
  • Durable black Thermo-Spruce tub surround (1.65” thick)
  • Matching black Thermo-Spruce wood steps for easy access
  • Stainless steel wood-burning heater utilizes dual heat compartments for unmatched efficiency
  • Rapid response heat-up time prepares water to ideal temperatures in under 2-hours
  • Wood-burning heater constructed of 304 stainless steel
  • Polished stainless steel chimney with protection
  • Superior thermal resistance (R-value) to retain heat
  • Extra thick steel reinforced foam cover, folds for ease of removal and storage
  • Dark grey marine grade vinyl cover exterior
  • Integrated hot tub drainage tap
  • Up to 6 bathers
  • Exterior dimensions: 79"Diameter (200.7 cm) x 37”H (94 cm)
  • Interior dimensions: 71"Diameter (180.3 cm) x 33"H (83.8 cm)
  • Designed by SaunaLife and handcrafted in Northern Europe

Model: MODEL S4B
Material: Black Thermo-Spruce
Exterior Dimensions: 79" Diameter (200.7 cm) x 37" H (94 cm)
Interior Dimensions: 71" Diameter (180.3 cm) x 33" H (83.8 cm)
Water Capacity: 304 Gallons
Product Weight: 441 lbs (200 kg)
Product Weight When Filled: 2976 lbs (1349.9 kg)
Stove Dimensions: 19.8" W (50.3 cm) x 11.8" D (30 cm) x 13.1" H (33.3 cm)
Chimney Dimensions: 0.7" Diameter (1.8 cm) x 95" H (241.3 cm)
Maximum Wood Length: 16" (40.6 cm)
Maximum Temperature: 106°F (41.1°C)
Shipping Dimensions: 91" W (231.1 cm) x 46" D (116.8 cm) x 87" H (221 cm)
Shipping Weight: 595 lbs (269.9 kg)

Included in the package:

  • Fully Assembled Hot Tub
  • Steps
  • Insulated Cover
  • Drainage with Tap
  • Polished Stainless Steel Chimney
  • Chimney Cap
  • Installation Instructions

Flat Rate Tub Freight:
Shipping is available for a flat rate of $950 to the contiguous United States. Please note that remote or difficult-to-access locations may not qualify for these standard rates.

Freight Quotes for Other Areas:
For deliveries outside these regions, please contact us at Sales@americansaunastore.com to request a custom freight quote.

Delivery Details:
Due to the size and weight of this handcrafted tub, delivery is scheduled by special appointment. The unit arrives securely packaged on a wooden pallet and enclosed in a protective wood crate to ensure safe transit. Delivery is curbside only, meaning the driver will lower the shipment to ground level but will not assist with placement or installation.

Prior to shipping, our team may reach out to confirm delivery details and discuss any site-specific considerations that could affect access or result in additional charges. Our goal is to ensure a smooth and successful delivery experience.

Shipping Specifications:

·  Dimensions: 91"W x 46"D x 87"H (231.1 x 116.8 x 221 cm)

· Weight: 595 lbs (269.9 kg)**