The SaunaLife SOAK-Series Model S4N is a premium wood-fired hot tub built for comfort, efficiency, and Scandinavian durability. It arrives fully assembled and requires no electricity—just fill, fire, and soak.

The ergonomic fiberglass interior seats up to 6 and is easy to clean. The thermally enhanced spruce exterior in natural brown offers lasting weather resistance.

Made in Northern Europe, the S4N heats 304 gallons of water from 40°F (5°C) to 95°F (35°C) in just 1.5–2 hours—up to 3x faster than standard tubs. Its self-cleaning corrugated stove with a secondary combustion chamber boosts efficiency and cuts wood use by up to 50%.

Experience powerful, off-grid soaking with the SaunaLife Model S4N.

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
• Handcrafted in Northern Europe
• Accommodates up to 6 bathers

Thermo-Spruce Material Advantage

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

Specifications

Material
Thermo-Spruce

Interior Dimensions
Diameter: 71"
Depth: 33"

Exterior Dimensions
Diameter: 79"
Height: 37"

Water Capacity
304 Gallons

Product Weight When Filled
3,064 lbs

Stove Dimensions 
Length: 19.8"
Width: 11.8"
Height: 13.1"

Maximum Wood Length
16"

Maximum Temperature 
106°F

Shipping Dimensions
Length: 91"
Width: 46"
Height" 87"

Shipping Weight
595 lbs

What's Included

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

Manuals & Resources

Delivery

Due to the size and weight of this handcrafted tub, delivery is scheduled by appointment and arrives securely packaged on a wooden pallet. Freight carriers provide curbside delivery only, lowering the shipment to ground level but not bringing it indoors. Before your order ships, we’ll contact you to confirm delivery details and identify any special site conditions that may affect delivery or incur additional fees. Our goal is to ensure everything arrives smoothly so you can enjoy your tub without hassle.

Shipment Options

1. Standard Freight (LTL - Less Than Truckload)
Commonly used for compact and mid-sized tubs, allowing for secure shipping without needing a full truck.

2. Flatbed Truck Delivery
For larger tubs cabins that require more space and weight capacity. Flatbed trucks are used for these oversized deliveries.

How Your Tub is Packaged

Your tub will arrive securely packed on one or two pallets, depending on the model. We take great care to ensure it's protected during transit.

Setting Up Your Delivery Appointment

To make things easy, delivery is never a surprise. Once your shipment reaches the nearest freight terminal, the carrier will contact you directly to schedule a delivery time that works best for you. You’ll always know when to expect your tub—no unannounced drop-offs.

During Delivery: What Happens

• Liftgate Included: The driver will use a liftgate to safely unload the tub pallet(s) to ground level—no manual lifting required on your part.

• Curbside Drop-Off: Delivery is made to the closest curbside area accessible to the truck. Please note that this does not include bringing items to your door or inside your home.