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SaunaLife 6 - Person Wood - Fired Hot Tub | Model S4B/S4N - Topture

SaunaLife S4 | Wood-Fired Hot Tub · 6-Person

A 6-person wood-fired hot tub with a thermo-spruce shell and stainless steel stove that heats 304 gallons in under 2 hours — no electricity needed.

$5,690
$5,690 - $5,990
$5,690
$6,599
Save $909
$6,599 - $6,899
$6,599
+$950 shipping to the contiguous US
  • Heats 40°F to 95°F in under 2 hours — 3× faster.
  • Thermo-spruce exterior resists rot and weathering outdoors.
  • No electricity required: the stove runs entirely on firewood.
Exterior Finish: Natural Spruce - S4N
SaunaLife S4 | 6-Person Wood-Fired Hot Tub $5,690
Shipping (contiguous US) $950
Total $6,640
  • Secure checkout
  • 30-day guarantee
  • Lifetime warranty
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa
In stock — estimated delivery:
Curbside freight delivery — items lowered to ground level
Excellent Trustpilot

See What People Are Saying…

“This has completely transformed my workspace. The natural light is a game changer!”

Lisa R.
Verified owner

“Built it in a weekend with my brother. Glass front is the move — feels like a real room, not a closet.”

Mark T.
Verified owner

“I love the design and how easy it was to set up. Highly recommend for any home owner.”

James K.
Verified owner
Description

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 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.


Engineered and crafted in the Northern Europe, this super-efficient hot tub heats in 1/3 of the time and consumes 50% less wood than other wood-fired hot tubs. The interior surface is easy to clean, and the exterior is crafted from thermally enhanced spruce for superior weather resistance and durability. It uses an ingenious self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke. Brilliantly, the air between the fiberglass lining and the wood exterior is super-heated to accelerate the heating process.

Features:

  • Comfortably seats up to 6 people
  • Heats water to ideal temperatures in under 2 hours
  • Durable Thermo-Spruce tub surround (1.65” thick)
  • Thick dark grey contoured fiberglass lining
  • Stainless steel wood-burning heater utilizes dual heat compartments for unmatched efficiency
  • Wood-burning heater constructed of 304 stainless steel
  • Polished stainless steel chimney with protection
  • 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
  • Arrives fully assembled (aside from chimney) and no electricity required
    Includes

    Includes:

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

    Specifications:

    • Maximum Temperature: 106°F
    • Water Heating Time: 40°F (5°C) to 95°F (35°C) in under 2 hrs
    • Exterior Dimensions: 79"Diameter x 37"H
    • Interior Dimensions: 71"Diameter x 33"D
    • Water Capacity: 304 Gallons
    • Product Weight when filled: 3,064 lbs
    • Material: Thermo-Spruce
    • Chimney Dimensions: 4.7"Diameter x 95"H
    • Stove Dimensions: 19.8"D x 11.8"W x 13.1"H
    • Maximum Wood Length: 16"
    • Shipping Dimensions: 91"L x 46"W x 87"H
    • Shipping Weight: 595 lbs
    Manual

    Download the Installation Manual (PDF)

    Dimensions (PDF)

    Warranty

    SaunaLife Shipping Information

    General Delivery Information (Applies to Both)

    All deliveries require a scheduled appointment. The sauna will arrive protected on a wooden pallet, sometimes encased in wood. Prior to shipping this product, we often contact customers to share shipment details and needs and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.

    Flat Rate Freight (LTL Truck)

    The driver is responsible for curbside delivery only and will lower the items to ground level.

    Exception for SaunaLife G3 & G4: These models are too long for lowering. In these cases, the customer is responsible for hand off-loading (piece by piece) or for off-loading with a forklift.

    Flat Rate Freight (Flat Bed Truck)

    For this option, the driver provides "delivery only" with limited assistance at the site. The customer is entirely responsible for removing the sauna crate from the truck.

    Required Equipment: You must provide a forklift or crane to offload the crate.

    Note: On rare occasions, remote or complex delivery areas may not qualify for these rates.

    Model Shipping Options

    Model Shipping
    E6 LTL
    E6W LTL
    E7 LTL
    E7W LTL
    E7G LTL
    E8 LTL
    E8W LTL
    E8G LTL
    EE6G LTL
    EE8G LTL
    CL3G LTL
    CL4G LTL
    CL5G LTL
    CL7G LTL
    CL12GCPCP Flat Bed Truck
    G2 LTL
    G3 LTL /contact us for "Flat Bed Truck" delivery
    G4 LTL /contact us for "Flat Bed Truck" delivery
    G6 Flat Bed Truck
    G11 Flat Bed Truck
    GL4 LTL
    GL6 LTL
    X2 LTL
    R3 LTL
    S4B LTL
    S4N LTL

    Your Own Hot Tub Ritual, in 3 Simple Steps

    You don't need a contractor or six months of forum research.

    Set it up
    Step 1

    Set it up

    Place it on a level pad, fill it with a hose, and you're soaking the same week — no plumber, no hookups.

    Light the fire
    Step 2

    Light the fire

    Load the firebox, drop in a match, and the wood-fired stove brings the water up to soak temperature on its own.

    Make It a Ritual
    Step 3

    Make It a Ritual

    The first few soaks tend to set the rhythm — the tub becomes a habit, not an expensive lawn ornament.

    ⚠ California Proposition 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

    REAL HOMES. REAL REVIEWS.

    See What Sauna Owners Are Saying…

    Rated 5/5 based on 122 happy owners

    We thought about buying a sauna for years and finally did. We absolutely love it, especially in the winter. It’s incredibly easy to assemble with two people the whole family uses it.

    Verified owner

    Ordered this sauna fall 2024 and we love it. No better feeling during a Minnesota winter. Lastly, I have to mention the customer service for this purchase has been like no other. Any questions or requests I had were addressed immediately by Topture. I got more than I expected from them and have already recommended them to several people looking for saunas. SO if you're thinking about it, JUST DO IT already..

    Verified owner

    Thanks for the great service - greatly appreciated.

    Verified owner

    TOPTURE vs. OTHER DEALERS

    Same look. Very different ownership experience.

    Other dealers

    Customer support
    Direct line to sauna experts, before and after the sale
    Generic chat, slow email
    Freight & handling
    Full-value insurance included, specialized heavy-freight carriers
    Cheap delivery, damage risk on you
    Dispatch speed
    Priority processing — ships in 2–6 business days from US warehouses
    Non-priority lead times, weeks of "processing"
    Brand authorization
    Authorized SaunaLife dealer — warranty honored, claims processed by us
    Often gray market or limited brand access
    Payment options
    Shop Pay 0% APR — from $241.95/mo
    Full payment upfront only
    Post-sale
    Heater sizing, install support, warranty handling, troubleshooting
    Order confirmation and silence

    Authorized SaunaLife retailer · warranty honored · US-based support.

    Choose your options now
    Excellent Trustpilot rating Trustpilot
    457+ Verified Reviews

    Real homeowners, rated 4.9/5 on Trustpilot.

    Lifetime Expert Support

    Same team before and after the sale, heater sizing, install help, warranty handling.

    Authorized SaunaLife Saunas Dealer

    Factory-direct inventory, full lifetime warranty honored.

    Full Freight Insurance Included

    $0 risk if anything arrives damaged. We handle the claim.

    Real customer reviews

    What sauna owners are saying

    STILL UNSURE?

    Frequently Asked Questions

    General

    Where are you located, and where do you ship from?

    We are a U.S.-operated company with our main headquarters in Sheridan, Wyoming.

    Orders are shipped across the continental U.S. from our network of warehouses, managed by our logistics partners in California, Illinois, Texas, New York, Florida, and Toronto.

    How much is shipping?

    We’re proud to offer FREE SHIPPING on all orders over $200 within the Continental United States.

    The only exception is sauna stones—due to their weight and high shipping costs, we apply a shipping charge when they are purchased without a heater.

    Do you provide financing?

    Absolutely! To view your financing offer, simply select Shop Pay Installments as your payment method at Step 3 of checkout.

    You'll need to enter a debit card to receive your offer, but don’t worry—you can still back out before completing the purchase.

    How long will it take for my items to arrive?

    If you order today, you can expect delivery within 5-13 business days. In-stock products typically ship within 2-6 business days, and once they leave the warehouse, transit time is usually 3-7 business days, depending on your location. Let us know if you need more details!

    For pre-order or made-to-order items, the estimated delivery time frame is listed on the product page.

    What happens after I place my order?

    As soon as you place your order, you'll receive a confirmation email with your order details—be sure to keep it for your records. Once we process your order, we'll begin preparing it for shipment. As soon as it ships, you'll receive another email with tracking information.

    1-2 days before delivery, the delivery team will call you to schedule an appointment. You’ll need to be home to accept and sign for the delivery at the scheduled time.

    Is there a warranty?

    Yes, all products come with a manufacturer warranty. You can find the specific warranty details for each product under the "Warranty" tab on its product page.

    Do you have a showroom?

    We don’t have a showroom, which means we can bring you the lowest prices as we don’t need to worry about any extra costs!

    Where do you deliver to?

    We offer free Curbside Delivery to all 48 lower states and for some products even Canada.

    Do you ship internationally?

    International Shipping

    Yes, we offer international shipping for many of our products. Customers outside the US can request a personalized shipping quote by contacting us. Please be aware that any applicable taxes or customs fees will be the responsibility of the customer. Note that some items may be subject to shipping restrictions.

    Shipping to Hawaii, Alaska, and Puerto Rico

    We ship to Hawaii, Alaska, and Puerto Rico, although most items are subject to additional shipping fees. To obtain specific rates and prevent any restocking fees, please email us at contact@topture.com.

    SaunaLife 6 - Person Wood - Fired Hot Tub | Model S4B/S4N - Topture
    Excellent on Trustpilot

    Your hot tub, done the right way.

    • Heats 40°F to 95°F in under 2 hours — 3× faster.
    • Thermo-spruce exterior resists rot and weathering outdoors.
    • No electricity required: the stove runs entirely on firewood.
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • Shop Pay
    • Visa
    • Secure checkout
    • 30-day guarantee
    • Lifetime warranty
    Description

    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 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.


    Engineered and crafted in the Northern Europe, this super-efficient hot tub heats in 1/3 of the time and consumes 50% less wood than other wood-fired hot tubs. The interior surface is easy to clean, and the exterior is crafted from thermally enhanced spruce for superior weather resistance and durability. It uses an ingenious self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke. Brilliantly, the air between the fiberglass lining and the wood exterior is super-heated to accelerate the heating process.

    Features:

    • Comfortably seats up to 6 people
    • Heats water to ideal temperatures in under 2 hours
    • Durable Thermo-Spruce tub surround (1.65” thick)
    • Thick dark grey contoured fiberglass lining
    • Stainless steel wood-burning heater utilizes dual heat compartments for unmatched efficiency
    • Wood-burning heater constructed of 304 stainless steel
    • Polished stainless steel chimney with protection
    • 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
    • Arrives fully assembled (aside from chimney) and no electricity required
      Includes

      Includes:

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

      Specifications:

      • Maximum Temperature: 106°F
      • Water Heating Time: 40°F (5°C) to 95°F (35°C) in under 2 hrs
      • Exterior Dimensions: 79"Diameter x 37"H
      • Interior Dimensions: 71"Diameter x 33"D
      • Water Capacity: 304 Gallons
      • Product Weight when filled: 3,064 lbs
      • Material: Thermo-Spruce
      • Chimney Dimensions: 4.7"Diameter x 95"H
      • Stove Dimensions: 19.8"D x 11.8"W x 13.1"H
      • Maximum Wood Length: 16"
      • Shipping Dimensions: 91"L x 46"W x 87"H
      • Shipping Weight: 595 lbs
      Manual

      Download the Installation Manual (PDF)

      Dimensions (PDF)

      Warranty

      SaunaLife Shipping Information

      General Delivery Information (Applies to Both)

      All deliveries require a scheduled appointment. The sauna will arrive protected on a wooden pallet, sometimes encased in wood. Prior to shipping this product, we often contact customers to share shipment details and needs and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.

      Flat Rate Freight (LTL Truck)

      The driver is responsible for curbside delivery only and will lower the items to ground level.

      Exception for SaunaLife G3 & G4: These models are too long for lowering. In these cases, the customer is responsible for hand off-loading (piece by piece) or for off-loading with a forklift.

      Flat Rate Freight (Flat Bed Truck)

      For this option, the driver provides "delivery only" with limited assistance at the site. The customer is entirely responsible for removing the sauna crate from the truck.

      Required Equipment: You must provide a forklift or crane to offload the crate.

      Note: On rare occasions, remote or complex delivery areas may not qualify for these rates.

      Model Shipping Options

      Model Shipping
      E6 LTL
      E6W LTL
      E7 LTL
      E7W LTL
      E7G LTL
      E8 LTL
      E8W LTL
      E8G LTL
      EE6G LTL
      EE8G LTL
      CL3G LTL
      CL4G LTL
      CL5G LTL
      CL7G LTL
      CL12GCPCP Flat Bed Truck
      G2 LTL
      G3 LTL /contact us for "Flat Bed Truck" delivery
      G4 LTL /contact us for "Flat Bed Truck" delivery
      G6 Flat Bed Truck
      G11 Flat Bed Truck
      GL4 LTL
      GL6 LTL
      X2 LTL
      R3 LTL
      S4B LTL
      S4N LTL