30-Day Easy Returns + Free Shipping Over $100

Skip to content
SKU: 88547032873

SaunaLife Wood-Fired Hot Tub Model S4 | Soak Series

Sale price$2695.50 Regular price$2995.00
Save 10%

Pay in installments of $748.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

SaunaLife Wood-Fired Hot Tub Model S4 | Soak SeriesSaunaLife Wood Fired Hot Tub Model S4 Soak Series Model S4 Outdoor Wood Burning Hot Tub The SaunaLife Wood Fired Hot Tub Model S4 from the SOAK Series offers unparalleled quality, efficiency, and luxurious features. Ready for your hot tub party The design of the SaunaLife Wood Fired Hot Tub Model S4 Soak Series allows it to come fully assembled and simple to install. With an ergonomically designed fiberglass tub, it provides comfortable seating for up

SaunaLife Wood-Fired Hot Tub Model S4 | Soak Series

 

Model S4 Outdoor Wood-Burning Hot Tub
   

The SaunaLife Wood-Fired Hot Tub Model S4 from the SOAK-Series offers unparalleled quality, efficiency, and luxurious features.

 

  • Ready for your hot tub party 

    The design of the SaunaLife Wood-Fired Hot Tub Model S4| Soak Series allows it to come fully assembled and simple to install. With an ergonomically designed fiberglass tub, it provides comfortable seating for up to 6 individuals. Its interior surface is easily maintainable while the exterior is made from thermally enhanced spruce for exceptional durability and weather resistance.

 

  • Engineered for efficiency and performance

    The SaunaLife Wood-Fired Hot Tub Model S4 from Northern Europe is designed for maximum efficiency, heating in just 1/3 of the time of traditional models without the need for an electrical connection. The key to its efficiency is the innovative self-cleaning corrugated stove, featuring a secondary chamber that reduces wood consumption by up to 50%. This unique design also utilizes super-heated air between the fiberglass lining and wood exterior to speed up the heating process. Additionally, the stove is engineered to draw cooler water from a lower channel and evenly distribute it through an upper channel, ensuring a consistent temperature throughout the tub.

 

  • Start enjoying sooner

    This high-performance wood-burning stove can rapidly heat up to 304 gallons of water from 40°F (5°C) to 95°F (35°C) in just 1.5 to 2 hours - making it the quickest heating option for a wood-fired hot tub.

Experience the indulgence of your backyard with the SaunaLife Wood-Fired Hot Tub Model S4. Invite friends and family to relax in this luxurious wood-burning tub.

 

Includes

Model S4 Outdoor Wood-Burning Hot Tub
  

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

Features

Model S4 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
 

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

Specifications

Model Model S4B
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 3064 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


Technical

S4B Installation and Operations Manual

S4N Installation and Operations Manual


S4B Dimensions and Technical Drawing

S4N Dimensions and Technical Drawing

 

Warranty


Shipping & Returns

SHIPPING

  • LTL Freight Shipping

    About This Delivery: The weight and packaging of this handcrafted sauna sanctuary require delivery by special appointment and on a wooden pallet. The driver is responsible for “curbside delivery only” and will lower the items to ground level. Upon order confirmation, you will receive a text message from us.  Please share any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.

 

Cancellations & Refunds

Nordica Sauna prides itself on having one of the best return policies in the industry. Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom-made orders).

Call 1-877-587-5387 or email [email protected]


When will I know my order has shipped?

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

When will my order ship?

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at [email protected].

No shipping outside the lower 48 States in the USA.

What if my shipment is damaged?

Please inspect the packaging of your item(s) when they arrive. If you notice any damage, you should make a note of it when signing for delivery.  If your item(s) do arrive damaged please send photos to [email protected] and we will process an insurance claim on your behalf.

Cancellations (Before order ships)

Nordica Sauna prides itself on having one of the best return policies in the industry.  Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom-made orders). Reach agents during business hours at 1-877-587-5387, chat on our website, or email [email protected]

Cancellations of customer orders

Custom or made-to-order products cannot be canceled or refunded as these products are put into production specifically for your order.  These units are custom-made to your specifications or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is unclear whether your order is custom or made to order, please message or call us. 

All sales are final for Custom made and Made-to-order products.

Refunds & Returns

If you need to exchange your product, you may do so.  You, as the customer, are responsible for any shipping costs throughout any returns or exchange processes. 

Not all orders are available for return once they have shipped.  We order products directly from the manufacturer. Therefore, if the manufacturer does not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product.

Seller reserves the right to refuse to refund any deposit or payment or cancel any payment due, and any owing until Seller a) receives the goods b) has inspected the goods and c) in the Seller's discretion, has found the goods to be free of damage. All refunds will be provided within 5 business days once the product has been returned to the warehouse and inspected for damage.


Shipping Times

We promise to do our best to get your order to you as soon as possible.  We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelming demand on shipping, factory/warehouse and dock workers and so on). 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88547032873

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
P
Verified Purchase
Paisley Stewart
Carnegie, US
★★★★★ 5
A Game Changer for Sensitive Skin
I use this serum every single day, and it has become one of the most important products in my skincare routine. I have very sensitive skin and cannot tolerate stronger active ingredients such as retinol or high-strength acids, so finding something effective but gentle has been incredibly important. This serum has helped calm redness, reduce inflammation, and noticeably improve my skin’s overall appearance and comfort. After dealing with a prolonged inflammatory skin condition, this product made a significant difference and helped restore my skin barrier. The formula feels soothing, hydrating, and non-irritating. If you have sensitive or reactive skin and are looking for a gentle product to help with redness and uneven texture, I highly recommend giving this serum a try. Photos attached: The green bottle is the product and the second photo includes my favorite additions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
B
Verified Purchase
Bri M.
Birmingham, US
★★★★★ 5
Perfect for Acne-Prone Skin!
This serum has honestly been a great addition to my routine for redness and post-acne marks. The texture is lightweight, hydrating, and doesn’t feel sticky or heavy on my oily/acne-prone skin. I have sensitive skin with a focus on barrier protection, and this didn’t irritate my skin at all. It layers beautifully with the rest of my skincare and leaves my skin looking calmer and smoother over time. AND, it doesn’t have a smell!! Definitely one of my favorite azelaic acid serums I’ve tried.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
L
Verified Purchase
Leyla Leiva
Boise, US
★★★★★ 5
6-Month Update: Still a staple for sensitive, acne-prone skin
Size: 3.38 Fl Oz (Pack of 1), Size: 3.38 Fl Oz (Pack of 1)
I originally reviewed this ampoule when I first started using it, and now after about six months of consistent use (morning and night), I feel confident giving a more long-term update. I have sensitive, acne-prone, combination skin, and this has remained one of the most reliable products in my routine. The texture is still one of my favorite things about it — very lightweight, absorbs quickly, and layers well under moisturizer and sunscreen without pilling. Over time, I’ve noticed: Less visible redness More balanced oil production in my T-zone Fewer irritation flare-ups when introducing new products No clogged pores or breakouts from this formula It doesn’t feel heavy or sticky, even in humid weather. I’ve continued repurchasing and even keep it on subscription because it consistently performs without causing sensitivity. If you’re looking for a gentle, soothing centella product that works well for long-term barrier support, this has proven to be a dependable option in my experience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
D
Verified Purchase
Daegon
Grantham, US
★★★★★ 5
Healed my barrier so fast
Size: 3.38 Fl Oz (Pack of 1)
I received this ampoule yesterday and I'm already leaving a 5 star review after 2 uses because it just worked so well. I bought it because I've recently incorporated the Timeless 20% Vitamin C into my routine and that + my tretinoin made my skin drier than I've ever felt it before, even gently swiping a cotton pad with micellar would sting on some parts of my face. As soon as this ampoule arrived I applied it to clean skin and layered squalane on top (my moisturizer was burning as well.) This product did not sting my face AT ALL. It instead felt immediately soothing and hydrating. When I woke up this morning almost all of my redness was gone, my skin didn't feel tight or irritated, and my skin tone looked so even and glowy. I never thought a product, especially such a simply formulated one, could heal my barrier so quickly but that's exactly what it did and I can already tell it's a repeat buy. If you have redness prone sensitive skin and/or you use several high strength actives, this ampoule is a must have and it might be the key for anyone struggling to tolerate high strength retinoids. I got the largest size bottle for $15 on sale and it's seriously one of the most affordable and effective skincare products I've ever had in my routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
L
Verified Purchase
Luffy’s Mom I Real Life Tester
West Palm Beach, US
★★★★★ 5
Safe, Lightweight, Hydrating – Perfect for sensitive, super oily, acne-prone skin
Size: 1.85 Fl Oz (Pack of 1), Size: 1.85 Fl Oz (Pack of 1)
I care most about the ingredients, and this Madagascar Centella Ampule is excellent — all the ingredients are safe, with no potential harm to your health, and it’s Yuka app approved with a 100/100 safety score. I feel confident using it on my sensitive, super oily, acne-prone skin. It’s super lightweight, absorbs quickly, and is not sticky at all — after applying, you just feel comfortable hydration. Even after a few hours, my skin doesn’t get oily, unlike some other serums I’ve used. It helps calm my skin and restore the barrier, which is perfect for my skin type. Even when I have acne wounds, it doesn’t irritate or sting — it’s extremely gentle. For sensitive, super oily, acne-prone skin like mine, it works wonderfully. Living in Utah, one of the driest states in the U.S., this serum keeps my skin hydrated even in very dry conditions, and a little goes a long way — 1–1.5 drops cover my face and neck. Using more can make my skin slightly oily, so just the right amount works perfectly. For someone with dry skin, results may differ, but for my skin type, it works beautifully. It’s also super affordable, and I’m glad it’s available on Amazon, with occasional great deals at Costco. I appreciate that it’s accessible at this price because this serum helps my skin a lot — very gentle on my acne-prone, sensitive, super oily skin. The serum is super easy to apply with the dropper, which keeps other things from getting into the bottle — it’s perfect for easy, hygienic application. Just note that the bottle is glass, so be careful — it may break if dropped. I’ve only been using it for three weeks, but it’s already a staple. I currently use one bottle, and the other two are extra for long-term use, especially since I got them on a great deal. This is now my main hydration serum, and I’ll update after longer use if needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026

recommand products