• Description

SaunaLife Model S4N Wood-Fired Hot Tub

The SaunaLife SOAK-Series Model S4N represents the very best in wood-burning hot tub quality, efficiency, and luxury.  

  • 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 

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 Northers 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. 

    Product Specifications

    SaunaLife Model S4N Wood-Fired Hot Tub Product Specifications

    Model Model S4N
    Material Thermo-Spruce
    Interior Dimensions 71"Diameter x 33"D
    Exterior Dimensons 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


    SaunaLife Model S4N Wood-Fired Hot Tub Dimensions

    Product Features

    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)  

    What's in the box?

    Model S4N Outdoor Wood-Burning Hot Tub  

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

    Product Manual

    SaunaLife Model S4N Wood-Fired Hot Tub Product Manual

    Product Warranty

    SaunaLife Product Warranty

    $950 FLAT RATE SHIPPING TO 48 CONTIGUOUS UNITED STATES. NOTE: THIS PRODUCT DOES NOT QUALIFY FOR FREE SHIPPING

    $1,250 FLAT RATE SHIPPING TO CANADA

    Flat Rate Freight: $950 flat rate shipping to the contiguous United States. $1,250 for Canada. 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. 

    Shipping Dimensions: 91"L x 46"W x 87"H 

    Shipping Weight: 595 lbs

    SaunaLife Product Warranty

    Product FAQs

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    Frequently Asked Questions

    Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
    Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
    We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
    Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
    Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
    Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
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