

Thermo-Spruce Cube Series
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.







Thermo-Spruce Cube 4-Person


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
No
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
No
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
READY TO SHIP!
Processing times vary depending on seasonality. Please allow 5-7 business days transit time to receive your order once it has shipped. *This time frame pertains to orders placed within the continental United States and does not include Alaska and Hawaii.
CURBSIDE DELIVERY
The price you see is the price you pay. Shipping and standard curbside delivery is included in all US domestic lower 48 states. Note: On rare occasions, remote or complex delivery areas may not qualify for this rate.
DELIVERY DETAILS
The weight and packaging of this handcrafted sauna sanctuary requires 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. Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.
WHITE-GLOVE DETAILS
White glove services that include unboxing and debris removal may be available in your area. Please contact us directly if you have any questions about white-glove delivery services.
WARRANTY
Lifetime Limited | Warranty Details
Description
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.
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
No
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
No
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
READY TO SHIP!
Processing times vary depending on seasonality. Please allow 5-7 business days transit time to receive your order once it has shipped. *This time frame pertains to orders placed within the continental United States and does not include Alaska and Hawaii.
CURBSIDE DELIVERY
The price you see is the price you pay. Shipping and standard curbside delivery is included in all US domestic lower 48 states. Note: On rare occasions, remote or complex delivery areas may not qualify for this rate.
DELIVERY DETAILS
The weight and packaging of this handcrafted sauna sanctuary requires 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. Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.
WHITE-GLOVE DETAILS
White glove services that include unboxing and debris removal may be available in your area. Please contact us directly if you have any questions about white-glove delivery services.
Warranty
WARRANTY
Lifetime Limited | Warranty Details
Explore Compatible Heaters
Learn more


HUUM Drop 7.5kW Sauna Heater Package


Amerec Designer Series 8kW Sauna Heater Package


Harvia KIP 8kW Sauna Heater


Harvia Cilindro Half Series 8kW Sauna Heater


HUUM Hive Mini 9kW Sauna Heater Package
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
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
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
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.
Let customers speak for us
from 37 reviews
I use both the cold plunge and sauna everyday . The cold plunge is addictive ! !
What a great buzz you get after 3 minutes of being in the cold plunge.

Very happy with purchase and customer service. Very simple to setup.

Himalayan Salt Bar Collection
Lou is great, very helpful. The cold plunge has helped my recovery and also helps me wake up and get my day started.

Mitch and Lou are great. Very responsive and were extremely helpful in getting my system up and running.
We purchased a commercial cold plunge and traditional sauna last month & could not be happier! Not only do they provide a fantastic product, their customer service and is above and beyond. We get so many compliments on our custom barrel plunge at our shop and are so happy we decided to go with the CPG's over a big box company. There is no way their care and personal attention could be matched!

These two things look great and the assembly doesn’t seem too challenging!

its so great so easy to use and clean. members love it too. I'm on week three and I've seen sleep improvements. some of the other members have seen it also!

Very happy with my cold plunge. The Cold Plunge Guys were very helpful before and after I received my plunge. I highly recommend them.
I recently booked a sauna/cold plunge session at the Cold Plunge Guys shop and it was such a great experience. From the moment I arrived, they were so welcoming and attentive! I highly recommend to anyone who is either looking for a unique wellness experience, or wants to see their amazing cold plunges in person!
First time plunging, did it 2 days in a row, it was sooo cold, but felt so good after! Everyone should try it. These guys are great!

Nice product for a fair price, I am very happy with mine. I opted for the 1.5hp chiller. When it got here I was worried it was a little overkill, but I don't regret it after using it for a bit. It gets cold very fast, so I don't need to think very far ahead if I want to use it, and can leave it off most of the time.
Also, exceptional customer service. I made a mistake when ordering and they corrected my mistake for me and refunded me the difference. Very responsive and helpful.

Thank you so much Cold Plunge Guys!! Plunging is part of my morning routine - I started with a 100 gallon rubbermaid vessel - and I am so glad that I switched to your system - it's so easy to program and maintain. Very well engineered - it’s clear they thought through all the details!

Drain Pump

I love my tub and I use it every day. Great product and excellent support whenever I need it. Thanks guys and best of luck!
explore the benefits

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.

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.

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.

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.

HEART HEALTH
Build protocol that activates the sympathetic nervous system through heat or cold shock for long-term heart health benefits.

ANTI-AGING
Who's old?! Not you! Increased circulation promotes cell regeneration. Create protocol that can replenish and reinvigorate the skin.
cold plunges
explore more


Barrel Plunge


Cuboid
saunas
explore more


AH Classic 4-Person Hybrid Sauna


AH Modern 3-Person Hybrid Sauna


Custom Red Cedar Barrel Sauna 4-Person+


ECO-Series Low EMF FAR Infrared Sauna 2-Person


FD-2 Full Spectrum Infrared Sauna


G3


G4


G6


GDI 3-Person


GDI Fit 3-Person


GDI Glass 2-3 Person


GDI Red Cedar Barrel Sauna 4-Person


Himalayan Salt Hybrid Sauna 3-Person


Himalayan Salt Infrared Sauna 3-Person


LUX Thermo-Spruce Barrel Sauna 6-Person


GDI Modern Outdoor Hybrid Sauna 6-Person


Saunum Classic Mini

