Saunalife's S4 : The Very Best Wood-Burning Hot Tub Quality, Efficiency & Luxury

Create your dream relaxation oasis with the finest quality wood-fired hot tub from SaunaLife! This high-performance spa is crafted to provide optimal bathing comfort, durability, and energy-efficiency.

The ideal addition to your self-care routine, hot tubs help transform your backyard into a personal haven for rejuvenation. With a SaunaLife hot tub, you can enjoy years of unforgettable home wellness experiences.

Fully Assembled & Ready to Go

The SaunaLife S4 outdoor wood-burning hot tub arrives fully assembled, making setup a breeze. It's ergonomically shaped fiberglass tub comfortably accommodates up to 6 people. The interior surface is designed for easy cleaning while the exterior crafted from thermally-treated spruce is weather-resistant to ensure to ensure durability and long-lasting enjoyment.

Optimal Efficiency and Performance

Crafted in Northern Europe, SaunaLife's S4 is engineered for exceptional efficiency. It heats in 1/3 of the time as traditional wood-fired hot tubs and no electrical connection is required. At the heart of the hot tub is it's ingenious self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke – reducing wood consumption by 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. Expertly designed, the hot tub stove pulls cooler water via a lower channel and circulates it through an upper channel, ensuring a consistent temperature throughout.

Get Started Quickly

Experience the fastest-heating wood burning hot tub available! This remarkably efficient wood stove heats 304 gallons of water from 40°F (5°C) to 95°F (35°C) in just 1.5 to 2 hours.

Indulge in the luxury of the SaunaLife S4 Wood-Burning Hot Tub, and make everlasting memories with your loved ones in the comfort of your own backyard!

Features:

• Comfortably seats up to 6 people
• Thermally-enhanced Spruce exterior (lasts up to 2X longer than Cedar) 
• Luxury outdoor wood-burning hot tub
• Designed for outdoor ergonomic hot tub bathing experiences
• Arrives fully assembled (aside from chimney) and no electricity required (eco-friendly)
• Heats up water to ideal temperatures in under 2-hours
• 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
• 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
• Easy to clean fiberglass interior lining
• Designed and handcrafted in Northern Europe
• Exterior Finish Option - Natural (Natural Spruce) or painted black (Black Spruce)
• Exterior dimensions – 79" diameter and 37” high  
• Interior dimensions – 71" diameter and 33” deep

Thermally-Enhanced Spruce Material, Advantages:

• Extremely durable:
• Lasts up to 2X longer than Cedar
• Superior weather resistance
• Superior thermal resistance (R-value) 
• Eco-friendly (no electricity needed)
• Ideal for water use (stable)

Specifications:

• Material: Thermo-Spruce
• Water Heating Time: 40°F (5°C) to 95°F (35°C) in under 2hrs
• Maximum Temperature: 106°F
• 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"
• Shipping Dimensions: 91"L x 46"W x 87"H
• Shipping Weight: 595 lbs

What's in the Box:

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

Resources:

SaunaLife S4B S4N Wood-Fired Hot Tub Installation Manual

Model S4B S4N Wood-Fired Hot Tub Dimensions

SaunaLife's Sauna Care Guide. Maintain Your Sauna's Optimal Performance with SaunaLife's Sauna Care Guide. This document covers all the best practices when it comes to preparing, using, and the regular maintenance of your sauna. Helpful tips to ensure your sauna is kept in great condition

Shipping & Returns

The weight or size of this product requires truck delivery by special appointment (LTL), on an oversized pallet. The driver is responsible for curbside delivery only and will lower the items to ground level. Please note that the customer is responsible for transporting the sauna into the home or facility.

Regarding Returns, please refer to our Returns & Refund Policy.