Enhance Your Outdoor Wellness with SaunaLife Home Soak-Series 6-Person Black Wood-Burning Hot Tub

How does the SaunaLife S4B deliver both hot and cold therapy for your recovery and relaxation needs?

The SaunaLife Model S4B Hot and Cold Plunge Tub is crafted from durable, thermally modified wood and stainless steel for exceptional performance in any climate. Use it as a cold plunge for post-sauna recovery or fill it with warm water for a relaxing soak. Its clean design and premium build make it the perfect wellness upgrade for backyards, spas, or sauna retreats.

Why Choose SaunaLife

SaunaLife delivers modern wellness tools with quality craftsmanship, durable materials, and sleek design for long-lasting performance in any outdoor setting.

What's in the Box?

• Fully assembled hot tub 
• Steps 
• Insulated cover  
• Drainage with tap 
• Polished stainless steel chimney 
• Chimney cap 

Key Features for SaunaLife Soak-Series 6-Person Black Outdoor Hot Tub

Model S4B Outdoor Wood-Burning Hot Tub   

• 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 dark grey contoured fiberglass lining provides enhanced bather comfort 
• 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 
• Durable Thermo-Spruce tub surround (1.65” thick), painted black  
• Superior thermal resistance (R-value) to retain heat  
• Matching Thermo-Spruce wood steps for easy access 
• 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 and 37” high  
• Interior dimensions – 71" diameter and 33” deep 
• Designed by SaunaLife and handcrafted in Northern Europe 

Thermo-Spruce Material Advantages 

• Lasts up to 2X longer than Cedar 
• Superior thermal resistance (R-value) 
• Eco-friendly 
• Ideal for water use (stable)  

Manuals for 6-Person Black Wood-Burning Hot Tub SL-MODELS4B

• Installation Manual
• Specification Sheet

Specification for SaunaLife Soak-Series 6-Person Black Wood-Burning Hot Tub SL-MODELS4B

• Material: Thermo-Spruce
• Interior Dimensions: 71" Diameter x 33" D
• Exterior Dimensions: 79" Diameter x 37" H
• Water Capacity: 304 Gallons
• Product Weight (Filled): 3,064 lbs
• Stove Dimensions: 19.8" L x 11.8" W x 13.1" H
• Chimney Dimensions: 95" H x 4.7" Diameter
• Maximum Wood Length: 16"
• Maximum Temperature: 106°F
• Shipping Dimensions: 91" L x 46" W x 87" H
• Shipping Weight: 595 lbs
• Finish: Black