SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World
SaunaLife Model S4N Wood-Fired Hot Tub - My Sauna World


SaunaLife Model S4N Wood-Fired Hot Tub

Saunalife Logo
Authorized Dealer - Full Warranty Included
Sale price$6,640.00 Regular price$7,499.00
Save $859.00

SaunaLife Model S4N Wood-Fired Hot Tub

SaunaLife Model S4N Wood-Fired Hot Tub

Model S4N Outdoor Wood-Burning Hot Tub   

The SaunaLife SOAK-Series Model S4 represents the very best in wood-burning hot tub quality, efficiency, and luxury.  

Ready for your hot tub party  

The Model S4N 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. 

Engineered for efficiency and performance 

Engineered and crafted in the Northern Europe, this super-efficient hot tub heats in 1/3 of the time as traditional wood-fired hot tubs. No electrical connection is required. At the heart of the Model S4 is its ingenious self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke – reducing wood consumption up to 50% compared with other hot tubs. Brilliantly, the air between the fiberglass lining and the wood exterior is super-heated to accelerate the heating process. The stove is cleverly engineered to draw cooler water through a lower channel and redistribute it though an upper channel to equalize the temperature.  

Start enjoying sooner 

This incredibly efficient wood stove will heat 304 gallons of water from 40°F (5°C) to 95°F (35°C) in 1.5 to 2 hours – the fastest-heating wood-burning hot tub available.  

Relax with friends and family the luxury of your Model S4 backyard wood-burning hot tub from SaunaLife. 


Model S4N 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)
  • 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)


    Model S4N Outdoor Wood-Burning Hot Tub  

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


      Model Model S4N
      Material Thermo-Spruce
      Interior Dimensions 71"Diameter x 33"D
      Exterior Dimensions 79"Diameter x 37"H
      Water Capacity 304 Gallons
      Product Weight when filled 3064lbs
      Stove Dimensions 19.8"D x 11.8"W x 13.1"H
      Chimney Dimensions 4.7"Diameter x 95"H
      Maximum Wood Length 16"
      Maximum Temperature 106F
      Shipping Dimensions 91"L x 46"W x 87"H
      Shipping Weight 595 lbs



      Customer Reviews

      Based on 1 review
      Michael Paul U
      Great Family hot tub

      Our hot tub was delivered very fast exactly as described. Well packed and in excellent condition. The instructions were clear and easy to follow. The whole setup took me about 1 hour. Easy to install and easy to use. My family has been enjoying the hot tub. The water warmed up quickly with 32F outside and warmed up to 104F in 2 hours. It stayed hot for a long time. Its very enjoyable and I highly recommend.

      Hi Michael, thank you for taking the time to leave such a positive review for our SaunaLife Model S4N Wood-Fired Hot Tub. Glad to hear that you and your family are enjoying it and that it was delivered quickly and in excellent condition.

      It's great to know that the hot tub warms up quickly and stays hot for a long time, providing a relaxing and enjoyable experience for you and your family. We appreciate your recommendation and hope you continue to have many enjoyable moments in your hot tub.