Thermo-Spruce Cube Series

Name: CL5G 4-Person
Brand: SaunaLife
SKU: SL-MODELCL5G
Price: 5990.0 USD
Availability: InStock

Luxury | Outdoor Sauna | Traditional Sauna

Elite Nordic Comfort

The Thermo-Spruce Barrel Series combines Nordic craftsmanship with innovative design, offering unparalleled comfort, durability, and style. Featuring a spacious interior, ergonomic seating, and premium materials like knot-free Thermo-Aspen for benches and backrests, it delivers a lifetime of wellness and relaxation in your backyard.

PRODUCT SHEET

CL5G 4-Person

$5,990.00 USD

Freight added at checkout

Choose your heater

Select one of our top compatible heater options

Sauna only $5,990.00 USD

Harvia KIP 8kW Sauna Heater

$1,258.00 USD

Harvia Spirit 8kW

$1,777.00 USD

HUUM Drop 9kW Sauna Heater Package

Sauna Controls Controller Style $3,295.50 USD

Subtotal $5,990.00 USD

Made In: Eastern Europe / USA

Using the finest Scandinavian materials

Requires Assembly

2-Men (1-Day) Assembly

Description

Features

What's Included?

Size & Weight

Electrical Specs

Shipping & Delivery

Warranty

Documents

DESCRIPTION

Unrivaled Comfort

Every detail was considered to ensure exceptional comfort including contoured seating surfaces and supportive arched backrests, so you’ll be comfortable even after long sauna sessions. Satin-smooth thermo-aspen seating provides cool-to-the-touch surfaces to ensure that you will have a relaxing and enjoyable sauna experience. The expansive glass front wall adds a bright, airy feeling, and a picturesque view of the outdoors.

Robust Construction

Premium quality materials are evident everywhere on Cube-Series Saunas. The exterior wood is made from durable full-length staves that have been organically thermally enhanced. This Thermo-Spruce wood is stronger, more dimensionally stable, naturally resists decay and pests, and will far outlast conventional wood. A complete shingle kit with drip rails ensures superior water management and a dry interior. The bronze-tinted 8mm thick front door is both beautiful and tempered for your safety.

Premium Experience Enhancements

Gently illuminating this spectacular sauna is app-based, Wi-Fi controlled premium “dotless” LED lighting. The elegant indirect lighting brings out the natural beauty of the wood and adds another dimension to your relaxing sauna.

KEY FEATURES

Thermo-Spruce Cube Series

One-of-a-kind outdoor sauna experience
Beautiful and durable Thermo-Spruce exterior
Ergonomically constructed to support airflow circulation
Ergonomic backrest
Shapely design that invites you in
Shingled roof for extra protection and durability
Beautiful tempered bronze front glass door
Features enough space for you and your guests
Designed by SaunaLife and handcrafted in Northern Europe

Thermo-Spruce Outdoor Sauna Advantages

Increased durability
Splinter resistant
Darker in color
Low maintenance
Excellent stability and strength

White LED Light System with Wi-Fi App

Dotless white glowing LED lighting
Wi-Fi, app-based operation capability
Wireless handheld remote (IP20) and control mounting cradle
Water and heat-rated LED and wire connections (IP67)
Flush or articulating mounting clips to set the ideal scene
Low voltage (24V DC) operation for bathing safety
30’ light cable (IP67) to suit all installation applications
Expandable to control up to four white LED light sources (see E SCONCE+ Package)

Easy installation

Arrives disassembled on a LTL Freight truck. Requires 2-persons 1-day to assemble

Lighting

Dotless and dimmable LED lighting, WiFi controlled lighting system

Bluetooth Speakers

Sizes

3-Person
4-Person
6-Person

Certifications

WHAT'S INCLUDED?

Thermo-Spruce Cube Series

Walls of Thermo-Spruce (42mm)
Front and back wall of Thermo-Spruce (28mm)
Tempered bronze front glass wall (8mm)
Ergonomic sauna bench of Thermo-Aspen
Ergonomic backrest of Thermo-Aspen
Ventilation
Fascia boards
Foundation beams
Montage kit
Front details painted black
Installation instructions

White LED Light System with Wi-Fi App

White LED light (2)
Wi-Fi, app-based operation
Wireless handheld remote & mounting cradle
90W power supply
Driver
30’ light cable
Mounting clips, articulating (3)
Mounting clips, f-lush (3)
Installation instructions

SIZE & WEIGHT

Interior Finish

Thermo-Spruce

Exterior Finish

Thermo-Spruce

Floor Type

Flat stave flooring

Lighting Type

White LED light bar (1)

Wi-Fi, app-based operation

Interior

4-Person (PDF)
Interior: 77.2"W x 55.1"D x 74.8"H

Exterior

4-Person (PDF)
Exterior: 80.7"W x 63"D x 82.7"H

Glass Door

Glass Finish Bronzed Style Tempered, Double Glazed, Self Closing, Lock Included

Bluetooth Speakers

Shipping Weight

1450 lbs

Capacity

4-Person

ELECTRICAL SPECS

OVERVIEW

This sauna requires a 120v/15amp receptacle for lights, in addition to the electrical required for the sauna heater. *Electrical specs for the heater will depend on the heater you choose.

Please reach out to us directly to chat through the best heater options for your needs.

SHIPPING & DELIVERY

Freight is added at checkout. $950 to the contiguous United States. $1,250 to Canada. Alaska, Hawaii, Puerto Rico, and remote addresses are quoted. On rare occasions a remote or complex delivery area does not qualify for this rate.

DELIVERY

This sauna ships LTL freight on a pallet, by appointment. You offload with a forklift, pallet jack, or equivalent. We contact you before it ships to confirm access.

HEATER FREIGHT

A heater or accessories can ship as a second pallet. That second pallet is a separate freight charge.

WARRANTY

Lifetime Limited | Warranty Details

DOCUMENTS

Installation Manual

Lightbar System Installation Manual

4-Person Diagram

Care Guide

Warranty

Description

DESCRIPTION

Unrivaled Comfort

Robust Construction

Premium Experience Enhancements

Features

KEY FEATURES

Thermo-Spruce Cube Series

One-of-a-kind outdoor sauna experience
Beautiful and durable Thermo-Spruce exterior
Ergonomically constructed to support airflow circulation
Ergonomic backrest
Shapely design that invites you in
Shingled roof for extra protection and durability
Beautiful tempered bronze front glass door
Features enough space for you and your guests
Designed by SaunaLife and handcrafted in Northern Europe

Thermo-Spruce Outdoor Sauna Advantages

Increased durability
Splinter resistant
Darker in color
Low maintenance
Excellent stability and strength

White LED Light System with Wi-Fi App

Dotless white glowing LED lighting
Wi-Fi, app-based operation capability
Wireless handheld remote (IP20) and control mounting cradle
Water and heat-rated LED and wire connections (IP67)
Flush or articulating mounting clips to set the ideal scene
Low voltage (24V DC) operation for bathing safety
30’ light cable (IP67) to suit all installation applications
Expandable to control up to four white LED light sources (see E SCONCE+ Package)

Easy installation

Arrives disassembled on a LTL Freight truck. Requires 2-persons 1-day to assemble

Lighting

Dotless and dimmable LED lighting, WiFi controlled lighting system

Bluetooth Speakers

Sizes

3-Person
4-Person
6-Person

Certifications

What's Included?

WHAT'S INCLUDED?

Thermo-Spruce Cube Series

Walls of Thermo-Spruce (42mm)
Front and back wall of Thermo-Spruce (28mm)
Tempered bronze front glass wall (8mm)
Ergonomic sauna bench of Thermo-Aspen
Ergonomic backrest of Thermo-Aspen
Ventilation
Fascia boards
Foundation beams
Montage kit
Front details painted black
Installation instructions

White LED Light System with Wi-Fi App

White LED light (2)
Wi-Fi, app-based operation
Wireless handheld remote & mounting cradle
90W power supply
Driver
30’ light cable
Mounting clips, articulating (3)
Mounting clips, f-lush (3)
Installation instructions

Size & Weight

SIZE & WEIGHT

Interior Finish

Thermo-Spruce

Exterior Finish

Thermo-Spruce

Floor Type

Flat stave flooring

Lighting Type

White LED light bar (1)

Wi-Fi, app-based operation

Interior

4-Person (PDF)
Interior: 77.2"W x 55.1"D x 74.8"H

Exterior

4-Person (PDF)
Exterior: 80.7"W x 63"D x 82.7"H

Glass Door

Glass Finish Bronzed Style Tempered, Double Glazed, Self Closing, Lock Included

Bluetooth Speakers

Shipping Weight

1450 lbs

Capacity

4-Person

Electrical Specs

ELECTRICAL SPECS

OVERVIEW

This sauna requires a 120v/15amp receptacle for lights, in addition to the electrical required for the sauna heater. *Electrical specs for the heater will depend on the heater you choose.

Please reach out to us directly to chat through the best heater options for your needs.

Shipping & Delivery

SHIPPING & DELIVERY

DELIVERY

This sauna ships LTL freight on a pallet, by appointment. You offload with a forklift, pallet jack, or equivalent. We contact you before it ships to confirm access.

HEATER FREIGHT

A heater or accessories can ship as a second pallet. That second pallet is a separate freight charge.

Warranty

WARRANTY

Lifetime Limited | Warranty Details

Documents

DOCUMENTS

Installation Manual

Lightbar System Installation Manual

4-Person Diagram

Care Guide

Warranty

Top Heater Choices

The most popular heater choices for this sauna

Economical

Harvia KIP 8kW Sauna HeaterA Finnish wall-mounted heater with the controls built in. It covers rooms from 250 to 425 cu. ft., and the stones are included. Efficient, dependable, and the most affordable of the three.$1,258.00 USD Upgraded

Harvia Spirit 8kWMade in Finland, for rooms from 177 to 431 cu. ft. It works with the Xenio controls and holds 110 lb of stones. The control and stones are sold separately, and it can be started from the WiFi app.$1,777.00 USD Luxury

HUUM Drop 9kW Sauna Heater PackageRed Dot award-winning water-drop design. This package includes the 9kW heater, UKU control, and 132 lb of stones. WiFi is available, and the control sets up to 230°F. Sized for rooms from 282 to 530 cu. ft.Starting at $3,295.50 USD

Explore all 8kW size heaters

Design

DIMENSIONS

4-Person (PDF)
Interior: 77.2"W x 55.1"D x 74.8"H
Exterior: 80.7"W x 63"D x 82.7"H

MATERIALS

Exterior: Thermo-Spruce
Interior: Thermo-Spruce

CPG's Sauna Report Card

CPG has developed a proprietary Sauna Report Card so that you can better understand how this sauna stands up to others in the industry.

Our notes about the Thermo-Aspen Cube Series: "The Therm-Aspen Cube Series are the most luxurious choice in the barrel sauna world. The extremely high-quality Nordic wood materials matched with SaunaLife's thoughtful expansive design, makes it worth the investment. If you are in the Northeast or cold weather climates, this barrel is for you. Equipped with a full roofing kit to handle the toughest conditions year-round."

BRAND SPOTLIGHT

SaunaLife

DELIVERY & INSTALL

Delivery

Assembly

Install

DELIVERY

Availability

Most of our products are in stock and ready to ship right away. Unless a product is specifically labeled as custom, you can expect your order to be fulfilled without delay.

Processing

Order processing fluctuates depending on seasonality. Pleaser refer to the "Estimated Delivery Date" above or contact us for the most up to date processing and delivery timelines.

Shipping

This item ships LTL freight on a wood pallet or crate. Standard curbside delivery is scheduled during a time that works best for you. White-glove delivery includes debris removal and product placement, and is available for an additional fee based on location and weight of order. Please contact us for a White-Glove Delivery quote or to learn more about delivery options.

ASSEMBLY

This sauna is engineered for simple DIY sauna installation (plan for 2 persons, 1-day)

You'll want a strong foundation to support your sauna. It's not recommend to install your outdoor sauna directly onto grass or dirt. Please contact us and we'd be happy to discuss the best placement for your sauna in or outside of your home.

INSTALL

Electrical install should be completed by a licensed electrician. Please refer to the electrical specs above for specifics on what is required for your sauna.

Feel free to leverage the CPG network of recommended electricians that are veterans at sauna install. If you choose to use your own electrician, we can schedule a pre-install call to make sure they have everything they need to succeed.

Delivery

DELIVERY

Availability

Most of our products are in stock and ready to ship right away. Unless a product is specifically labeled as custom, you can expect your order to be fulfilled without delay.

Processing

Order processing fluctuates depending on seasonality. Pleaser refer to the "Estimated Delivery Date" above or contact us for the most up to date processing and delivery timelines.

Shipping

Assembly

ASSEMBLY

This sauna is engineered for simple DIY sauna installation (plan for 2 persons, 1-day)

Install

INSTALL

Electrical install should be completed by a licensed electrician. Please refer to the electrical specs above for specifics on what is required for your sauna.

Let customers speak for us

from 59 reviews

Great Barrel Cold Plunge

Everything as advertised. Easy set-up and a great addition to our sauna. I had a few questions and received prompt replies and great customer service. I would order again.

Tom - Northern Wisconsin

08/17/2026

FD-3 Full Spectrum Infrared Sauna

Edward Plummer

08/12/2026

Absolutely stellar interaction with Mitch

Absolutely stellar interaction with Mitch. Cannot thank them enough. Would do business again without a thought in the matter!

Grant Paquin

07/10/2026

Sauna stove and glass door

Mitch and the team were incredibly thoughtful and patient while I worked on my order. Shipping was clear and conciencias and everything arrived as it should

Grant Paquin

07/02/2026

Awesome folks!

Communication and attention to customer service was amazing!!!

Kiley Hill

05/01/2026

Fantastic

Love our large sauna! Actually put it together by myself.....was not recommended but can be done! Exactly as advertised! Great service!

John Riekhof

03/02/2026

Great Cold Plunge Tub

This is a great cedar-sided cold plunge tub. I spent a considerable amount of time researching cold plunge tubs and wanted one with real ceder wood to fit my sauna room. It also has a durable heat pump, compared to lower-quality chillers. I have had it a few months and no issues. Also, in the pics below, I have the chiller, which is about a 2' x 2' cube plumbed to a different space for a clean sauna room look. I would highly recommend this tub and the price is less than some on the market.

Tom L

01/20/2026

These guys are AMAZING!

These guys are AMAZING! I’d leave 10 stars if I could. We purchased a barrel sauna and cold plunge from them in fall 2025. They were absolutely terrific to work with! Our contractor and electrician had many (many) questions, all were promptly and kindly answered. They even customized our order by selling an extra long cord so we could install control panel inside for extra protection in MN winters. Shipping and delivery was a breeze. We are using our sauna daily and love it! Zero hesitation recommending this company! Thank you Johnny and Mitch for all your help!!!

Caley Philipps

12/12/2025

Caley Philipps

12/09/2025

What a wonderful sauna!

Researched many saunas for many months. Finally landed on this one. Only complaints i have are the instructions weren't very well written and the trim on the outside was very difficult to put together. We use it almost daily.

Ashley Slocum

11/24/2025

Great service, great sauna

Super stoked about the new sauna. I ended up with a beautiful 2-3 person cedar sauna with a huum heater. It’s perfect. These guys were helpful in choosing the right size, type, etc.
very glad I used the cold plunge guys.

Dr. Stephen Sherman

10/25/2025

Great service!

Received order quickly. Great service

Chad Anderson

10/10/2025

Cold Plunge Gurus

Had a great experience working with the Cold Plunge Guys and would highly recommend their products!

Jonathan Zook

10/10/2025

ECO-Series Low EMF FAR Infrared Sauna 1-Person

Great Customer Service

Honest, knowledgeable and reliable. I appreciate all the care that goes into each personal interaction.

Krystle HUMPHREYS

07/09/2025

HUUM Hive Mini 10.5kW Sauna Heater Package

Awesome!

I ordered my heater on a Thursday and it arrived the following Tuesday.
The price was by far the lowest I was able to find. I am super impressed with this company.

Todd Hofer

07/03/2025

DETOXIFICATION

detoxification

Sweat is the safest and most natural way to expel the body's toxins. Practiced for thousands of years, sauna is still one of the most efficient ways to sweat on earth today.

LEARN MORE

MUSCLE RECOVERY

Extensive research has shown that exposure to cold and heat can effectively reduce inflammation, accelerating the recovery process and providing relief from pain.

LEARN MORE

MENTAL HEALTH

Through breathing techniques you can learn to calm your nervous system in intense heat and cold. Breathing is the key to a racing heart and a racing mind.

LEARN MORE

IMPROVED SLEEP

Whoop™ posted a study that showed a 2.5x increase in sleep consistency on days when people practice cold exposure. Learn how heat & cold to create better habits and deeper sleep.

LEARN MORE

HEART HEALTH