SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People
SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People
SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People
SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People
SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People

SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build for Up to Six People

Vendor:

SaunaLife

SKU:

SL-MODELG4

4 Verified Reviews
$6,058.71 
+ 🚚 Free shipping

Find the Best Heater for You

Find the Best Heater for You

Availability:

in stock, ready to be shipped

Shipping information

Shipping and delivery

Clear delivery expectations so you know what will happen after you place your order.

Where we ship

We primarily deliver to residential and commercial addresses within the continental United States. Availability for Alaska, Hawaii and other regions can vary by brand, so please contact us before ordering if you are outside the mainland U.S.

How orders are shipped

Many products are shipped directly from the manufacturer or authorized distributor. Once an order is processed for shipment, we share any tracking details made available to us by the carrier or supplier. You will always receive an order confirmation email after checkout.

Freight deliveries

Larger and heavier items usually ship via freight with curbside delivery. The carrier may contact you to arrange a delivery window and an adult may need to be present to sign when required. Standard freight service does not include inside delivery or installation unless specifically arranged.

Transparent costs

Any applicable shipping fees are shown clearly in your cart or at checkout before payment. We recommend reviewing access points, stairs and doorway widths ahead of time to help avoid extra carrier handling fees after dispatch.

Have questions about shipping for this product or need delivery guidance
Email support@thermalsanctum.com or call +1 (302) 219 4061. We are happy to help.

Information on this page is for general guidance. Final shipping options and any applicable charges are confirmed at checkout and in your order confirmation email.

Returns 

Returns and peace of mind

Helpful guidance on how returns work at Thermal Sanctum.

Eligibility overview

Many products are eligible for a return or exchange when they are unused, in original packaging and meet the conditions in our Returns and refunds policy. Because requirements can vary by brand and product type, we always review eligibility before confirming a return.

How to request a return

If you would like to request a return, please contact our team with your order number and product details. We will confirm whether the item qualifies under our policy and share the next steps, including any return authorization information.

Condition of returned items

Items typically need to be in new, resaleable condition with all original parts, manuals and accessories included. Products that have been installed, used or modified may not be eligible for a refund except where required by law.

Damaged or incorrect items

If your order arrives damaged or you receive the wrong item, please tell us as soon as possible and include photos of the packaging and product. We will work with you and the manufacturer or carrier to review the issue and arrange a suitable resolution.

Have questions about returns for this product
Email support@thermalsanctum.com or call +1 (302) 219 4061. Our team is happy to help before or after you order.

This section is a general overview only. Full details, including any time limits and fees that may apply, are set out in our Returns and refunds policy.

Best price promise

Best price promise

We want you to feel confident you are receiving excellent value.

Price match review

If you find the same item available from another authorized retailer, let us know before you purchase. Our team can review the advertised price and, where eligible, work to match it.

Authorized dealer pricing

Thermal Sanctum sells products supplied by manufacturers and authorized distributors. Pricing is set in accordance with brand policies to help ensure authenticity, warranty protection and safe delivery.

What we consider

When reviewing a price match request, we consider factors such as availability, identical model and configuration, retailer authorization status, and any shipping or handling charges included in the offer you found.

How to submit a request

Email our team with a link or written quote for the lower advertised price, along with your contact details. We will review the information and reply promptly with next steps.

Have a price match question
Email support@thermalsanctum.com or call +1 (302) 219 4061.

Price match requests are reviewed on a case-by-case basis and must meet brand and dealer policy requirements. Some items or promotions may not be eligible. Full details are available upon request.

Thermal Sanctum

SaunaLifeGarden Series G4 
Outdoor Sauna Kit with Nordic 
Spruce Build for Up to Six People

A modern Nordic outdoor sauna handcrafted from premium spruce, designed to 

welcome up to six bathers in elevated comfort. Clear tempered glass, dual tier seating,
and a bright, airy layout create the perfect ritual space for daily restoration.

Why Customers Choose the G4
 

Nordic Spruce structure for strength and natural beauty

Airy modern design with full clear tempered glass

Dual level seating crafted from Grade A Aspen

Reversible window and door placement for flexible

layout

Wi Fi enabled LED lighting for mood control

Engineered for simple two person assembly

Made by skilled sauna builders in Northern Europe

Why Customers Choose HUUM Drop
 

Technical Details
 

Material:

Nordic Spruce and Grade A Aspen

Interior Dimensions:

78.5" D x 78.5" W x 85.2" H

Exterior Height:

97" front, 85" back

Glass:

5/16" clear tempered glass

Door:

Lockable, reversible

Seating:

Dual level Grade A Aspen

Lighting:

Wi Fi enabled LED bar system

Installation:

2 person, 2 days

Recommended Heater:

10.5kW to 12kW

Warranty:

Manufacturer warranty

What is Included in Your Package

Model GL4 Kit

Nordic Spruce wall beams

Prefabricated door and window elements

Grade A Aspen benches and backrests

LED light bar system with Wi Fi and remote

Roofboards and waterproofing

Ground frame and floorboards

Terrace boards

Installation manual and hardware

Screws and fasteners

Manuals and Documents

Installation and Operation Manual

Lighting Guide

Dimensions Diagram

Warranty

Them

Support

Real specialists who respond quickly
and guide you with care

Slow replies, automated
systems, no real help

Order Processing

Orders confirmed and processed fast
with real time tracking

Orders sit in queues with
unclear updates

Shipping

Fast and fully trackable shipping
nationwide

Basic shipping with long
delivery windows

Pricing

Transparent pricing and price match
support

Hidden fees and unclear
terms

Returns and
Warranty

Clear returns and strong warranty
protection

Complicated and frustrating
return processes

Frequently asked questions

How many people can the G4 sauna accommodate?

The G4 seats four people comfortably on the upper bench, and up to six bathers total when using both bench levels. For the best experience, it is considered a four person sauna.

What materials are used in the G4’s construction?

The structure uses premium Nordic spruce, known for its strength and clean Scandinavian appearance.
The benches and backrests are made from grade A knot free aspen, chosen for comfort, durability, and resistance to high temperatures.

Is the G4 suitable for year round outdoor use?

Yes. Thick spruce walls, roof waterproofing, and a slanted drainage design make the G4 ideal for most climates throughout the year.

Is this sauna difficult to assemble?

No. The G4 is engineered for simple DIY installation and can typically be assembled by two people in about two days.
All beams, panels, windows, and fasteners are included.

Which heater is recommended for the G4?

SaunaLife recommends a 10.5 kW heater, although many customers prefer a 12 kW heater for faster heat up times.

What foundation is needed for installation?

The sauna must be placed on a level, stable surface such as:

- Concrete pads

- Compressed gravel base

- Deck or terrace
This ensures proper drainage and structural stability.

Does the G4 include lighting?

Yes. The kit includes a white LED bar lighting system with:

- WiFi app control

- Wireless remote control

- Adjustable mood lighting

Thermal Sanctum

SaunaLife Garden Series G4 Outdoor Sauna Kit with Nordic Spruce Build

A modern Nordic outdoor sauna handcrafted from premium spruce, designed to   welcome up to six bathers in elevated comfort. Clear tempered glass, dual tier seating, and a bright, airy layout create the perfect ritual space for daily restoration.

Why Customers Choose the G4

Nordic Spruce structure for strength and natural beauty

Airy modern design with full clear tempered glass

Dual level seating crafted from Grade A Aspen

Reversible window and door placement for flexible

layout

Wi Fi enabled LED lighting for mood control

Engineered for simple two person assembly

Made by skilled sauna builders in Northern Europe

Technical Details

Material:

Nordic Spruce and Grade A Aspen

Interior Dimensions:

78.5" D x 78.5" W x 85.2" H

Exterior Height:

97" front, 85" back

Glass:

5/16" clear tempered glass

Door:

Lockable, reversible

Seating:

Dual level Grade A Aspen

Lighting:

Wi Fi enabled LED bar system

Installation:

2 person, 2 days

Recommended Heater:

10.5kW to 12kW

Warranty:

Manufacturer warranty

What is Included in Your Package

Model GL4 Kit

Nordic Spruce wall beams

Prefabricated door and window elements

Grade A Aspen benches and backrests

LED light bar system with Wi Fi and remote

Roofboards and waterproofing

Ground frame and floorboards

Terrace boards

Installation manual and hardware

Screws and fasteners

Manuals and Documents

Installation and Operation Manual

Lighting Guide

Dimensions Diagram

Warranty

Them

Customer Support

Real specialists who respond quickly and guide you with care

Slow replies, automated
systems, no real help

Order Processing

Orders confirmed and processed fast with real time tracking

Orders sit in queues with
unclear updates

Shipping

Fast and fully trackable shipping
nationwide

Basic shipping with long delivery windows

Pricing

Structure

Transparent pricing and price match
support

Hidden fees and unclear terms

Returns & Warranty

Clear returns and strong warranty
protection

Complicated and frustrating
return processes

Frequently asked questions

How many people can the G4 sauna accommodate?

The G4 seats four people comfortably on the upper bench, and up to six bathers total when using both bench levels. For the best experience, it is considered a four person sauna.

What materials are used in the G4’s construction?

The structure uses premium Nordic spruce, known for its strength and clean Scandinavian appearance.
The benches and backrests are made from grade A knot free aspen, chosen for comfort, durability, and resistance to high temperatures.

Is the G4 suitable for year round outdoor use?

Yes. Thick spruce walls, roof waterproofing, and a slanted drainage design make the G4 ideal for most climates throughout the year.

Is this sauna difficult to assemble?

No. The G4 is engineered for simple DIY installation and can typically be assembled by two people in about two days.
All beams, panels, windows, and fasteners are included.

Which heater is recommended for the G4?

SaunaLife recommends a 10.5 kW heater, although many customers prefer a 12 kW heater for faster heat up times.

What foundation is needed for installation?

The sauna must be placed on a level, stable surface such as:

- Concrete pads

- Compressed gravel base

- Deck or terrace
This ensures proper drainage and structural stability.

Does the G4 include lighting?

Yes. The kit includes a white LED bar lighting system with:

- WiFi app control

- Wireless remote control

- Adjustable mood lighting

Reviews

4.9

Based on 4 verified sauna reviews

98 percent of customers would recommend Thermal Sanctum.

5 (3)

Title

4 (1)

Title

3 (0)

Title

2 (0)

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1 (0)

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Average ratings

See more

  • Heat performance

  • Build quality

  • Comfort

  • Ease of installation

  • Value

Title

Very poor

Excellent
Title

Entry Level

Exceptional
Title

Less comfortable

Very comfortable
Title

Challenging

Very easy
Title

Below expected value

Exceptional value

5

• 2 months ago

The LED lights are a game changer

The  LED bar with the app is so cool. We sauna mostly in the evening and the lighting inside makes it super relaxing. Bench height is comfortable and the heat stays even. Really well designed kit.

Isaac F. • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer
Title

5

• 2 months ago

Amazing value for the quality

Looked at a bunch of other saunas and this one was the only one that looked modern and not like a shed lol. The spruce looks great and the inside feels bigger than the dimensions suggest. 

Hugo L • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer

4

• 2 months ago

Took some time to assemble

Me and my husband and our 2 sons spent around 3 days on it because we kept stopping but the instructions were okay. The door feels solid and locks tight. The windows give it such a nice open feeling. Only complaint is the build time and complexity, but we love it still.

Chloe M. •  SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer

5

• 2 months ago

Love how customizable it is

Being able to flip the window or door was a nice tocuh

Anonymous • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer

Reviews

4.9

Based on 4 verified sauna reviews

98 percent of customers would recommend Thermal Sanctum.

5 (3)

Title

4 (1)

Title

3 (0)

Title

2 (0)

Title

1 (0)

Title

average ratings

See more

How strong and consistent is the heat output?

Title

Very poor

Excellent

How would you rate the construction quality and durability?

Title

Entry Level

Exceptional

How comfortable is this sauna to use?

Title

Less comfortable

Very comfortable

How simple was the installation process?

Title

Challenging

Very easy

How would you rate the overall value for the price?

Title

Below expected value

Exceptional value

5

• 2 months ago

The LED lights are a game changer

The  LED bar with the app is so cool. We sauna mostly in the evening and the lighting inside makes it super relaxing. Bench height is comfortable and the heat stays even. Really well designed kit.

Isaac F. • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer
Title

5

• 2 months ago

Amazing value for the quality

Looked at a bunch of other saunas and this one was the only one that looked modern and not like a shed lol. The spruce looks great and the inside feels bigger than the dimensions suggest. 

Hugo L • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer

4

• 2 months ago

Took some time to assemble

Me and my husband and our 2 sons spent around 3 days on it because we kept stopping but the instructions were okay. The door feels solid and locks tight. The windows give it such a nice open feeling. Only complaint is the build time and complexity, but we love it still.

Chloe M. •  SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer

5

• 2 months ago

Love how customizable it is

Being able to flip the window or door was a nice tocuh

Anonymous • SaunaLife Garden Series G4 Outdoor Sauna Kit

Verified buyer