Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People
Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People

Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People

Vendor:

Finnmark

SKU:

FD-KN003

10 Verified Reviews
$4,956.09 
+ 🚚 Free shipping

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

Finnmark FD 3 Infrared Home 
Sauna with Full Spectrum 
Heating for Four People

A premium full spectrum sauna combining UL Listed Spectrum Plus™ 

heaters and Spectrum Carbon 360° technology, designed for deeper
therapeutic heat, modern aesthetics, and luxury home wellness.

Why Customers Choose the Finnmark FD-3
 

Antimicrobial Western Canadian cedar interior.

Thermal Plus™ Aspen exterior designed to resist rot, warping, and decay.

Combination of long-wave Spectrum Carbon 360° panels and UL Listed Spectrum Plus™
heaters for full spectrum infrared therapy.

Strategic heater placement for deeper heat penetration and full body coverage.

Integrated LED mood lighting and built-in Bluetooth audio.

Low EMF construction tested by a NASA award winning facility.

High emissivity infrared performance.

Durable double walled construction with non-toxic wool insulation.

Why Customers Choose HUUM Drop
 

Technical Details
 

Power

3150W

Voltage

240V

Amperage

15A

Phase

Single

Maximum Temperature

170°F

Interior Dimensions

67"W × 41"D x 70"H

Exterior Dimensions

72"W x 46"D x 78"H

Room Volume

111.3 cu ft

Door Dimensions

23.625"W x 67.875"H

Glass Thickness

8mm

Plug Type

NEMA 6-15P

Certification

ETL Listed

What is Included in Your Package

Sauna Structure

Sauna Panels

Ergonomic backrest

Electronics

Tempered glass

Heating System

Infrared Sauna Heater Panels

Spectrum Plus™ Incoloy Heaters

Spectrum Carbon 360 Panels

Heater Cables

Floor Cables

Electronics

Control Console

Main Mount Bracket

Temperature Sensor

Door Sensor

Cables

Installation Manual

Hardware

Screws and Fasteners

Door handle

Wood covers

Door Sensor

Certifications

ETL Certification

UL Listing

Finnmark Certification

Manuals and Documents

Installation and Operation Manual

Installation Video

FD-3 Diagram

EMF Test Log

UL Listing

Warranty

About This Delivery:

This sauna ships secured on a protective wooden pallet and requires a scheduled delivery appointment. The driver will provide curbside

delivery. Prior to shipment, customers may be contacted to review delivery conditions and ensure a smooth arrival.

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 does the Finnmark FD-3 sauna fit?

The FD-3 comfortably fits up to four people, with ergonomic seating and full spectrum heater placement that maximizes coverage.

What makes the Finnmark FD-3 different from other infrared saunas?

The FD-3 is the only infrared sauna that combines:

- UL Listed Spectrum Plus short-wave heaters

- Spectrum Carbon 360° long-wave panels
This pairing delivers higher temperatures, deeper heat penetration, and more complete body coverage than traditional infrared systems.

How quickly does the sauna heat up?

The FD-3 can reach temperatures up to 170°F in under one hour on a standard 240V home outlet, thanks to its UL Listed heating technology.

Is the sauna low EMF?

Yes. The FD-3 is low EMF, tested and verified by a NASA award winning testing facility, ensuring a safe and comfortable wellness experience.

What materials is the sauna made from?

Interior: Antimicrobial Western Canadian cedar, naturally resistant to mold and bacteria.

Exterior: Thermal Plus aspen, engineered to resist warping, decay, and rot.
These materials contribute to durability, comfort, and overall air quality.

What are the health benefits of using the FD-3?

Benefits supported by full spectrum infrared technology include:

- Increased circulation and improved heart health

- Faster muscle recovery

- Pain relief and reduced inflammation

- More efficient sweating and detoxification

- Lower perceived heat discomfort compared to traditional saunas

Spectrum Plus heaters remove up to 17 percent more toxins than standard infrared systems.

Does the sauna include sound and lighting features?

Yes. The FD-3 includes:

- Built in Bluetooth audio

- Dual 6 inch HiFi speakers

- Colour changing LED lighting

- Medical grade Spectrum Red Light therapy

- Near infrared ceiling lights

Thermal Sanctum

Finnmark FD 3 Infrared Home Sauna with Full Spectrum Heating for Four People

A premium full spectrum sauna combining UL Listed Spectrum Plus™ heaters and Spectrum Carbon 360° technology, designed for deeper therapeutic heat, modern aesthetics, and luxury home wellness.

Why Customers Choose the Finnmark FD-3

Antimicrobial Western Canadian cedar interior.

Thermal Plus™ Aspen exterior designed to resist rot, warping, and decay.

Combination of long-wave Spectrum Carbon 360° panels and UL Listed Spectrum Plus™ heaters for full spectrum infrared therapy.

Strategic heater placement for deeper heat penetration and full body coverage.

Integrated LED mood lighting and built-in Bluetooth audio.

Low EMF construction tested by a NASA award winning facility.

High emissivity infrared performance.

Durable double walled construction with non-toxic wool insulation.

Technical Details

Power

3150W

Voltage

3150W

Amperage

15A

Phase

Single

Maximum Temperature

170°F

Interior Dimensions

67"W × 41"D x 70"H

Exterior Dimensions

72"W x 46"D x 78"H

Room Volume

111.3 cu ft

Door Dimensions

23.625"W x 67.875"H

Glass Thickness

8mm

Plug Type

NEMA 6-15P

Certification

Manufacturer warranty

What is Included in Your Package

Sauna Structure

Sauna Panels

Ergonomic backrest

Electronics

Tempered glass

Heating System

Infrared Sauna Heater Panels

Spectrum Plus™ Incoloy Heaters

Spectrum Carbon 360 Panels

Heater Cables

Floor Cablesom text goes here

Electronics

Control Console

Main Mount Bracket

Temperature Sensor

Door Sensor

Cables

Installation Manual

Hardware

Screws and Fasteners

Door handle

Wood covers

Door Sensor

Certifications

ETL Certification

UL Listing

Finnmark Certification

Manuals and Documents

Installation and Operation Manual

Installation Video

FD-3 Diagram

EMF Test Log

Warranty

About This Delivery:

This sauna ships secured on a protective wooden pallet and requires a scheduled delivery appointment. The driver will provide curbside delivery. Prior to shipment, customers may be contacted to review delivery conditions and ensure a smooth arrival.

Reviews

5.0

Based on 10 verified sauna reviews

99 percent of customers would recommend Thermal Sanctum.

5 (10)

Title

4 (0)

Title

3 (0)

Title

2 (0)

Title

1 (0)

Title

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

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 does the Finnmark FD-3 sauna fit?

The FD-3 comfortably fits up to four people, with ergonomic seating and full spectrum heater placement that maximizes coverage.

What makes the Finnmark FD-3 different from other infrared saunas?

The FD-3 is the only infrared sauna that combines:

- UL Listed Spectrum Plus short-wave heaters

- Spectrum Carbon 360° long-wave panels
This pairing delivers higher temperatures, deeper heat penetration, and more complete body coverage than traditional infrared systems.

How quickly does the sauna heat up?

The FD-3 can reach temperatures up to 170°F in under one hour on a standard 240V home outlet, thanks to its UL Listed heating technology.

Is the sauna low EMF?

Yes. The FD-3 is low EMF, tested and verified by a NASA award winning testing facility, ensuring a safe and comfortable wellness experience.

What materials is the sauna made from?

Interior: Antimicrobial Western Canadian cedar, naturally resistant to mold and bacteria.

Exterior: Thermal Plus aspen, engineered to resist warping, decay, and rot.
These materials contribute to durability, comfort, and overall air quality.

What are the health benefits of using the FD-3?

Benefits supported by full spectrum infrared technology include:

- Increased circulation and improved heart health

- Faster muscle recovery

- Pain relief and reduced inflammation

- More efficient sweating and detoxification

- Lower perceived heat discomfort compared to traditional saunas

Spectrum Plus heaters remove up to 17 percent more toxins than standard infrared systems.

Does the sauna include sound and lighting features?

Yes. The FD-3 includes:

- Built in Bluetooth audio

- Dual 6 inch HiFi speakers

- Colour changing LED lighting

- Medical grade Spectrum Red Light therapy

- Near infrared ceiling lights

Reviews

5.0

Based on 10 verified sauna reviews

99 percent of customers would recommend Thermal Sanctum.

5 (10)

Title

4 (0)

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

Heats fast and feels like a professional-grade unit

After researching a ton of infrared saunas, we chose Finnmark because of the dual heater technology and the low EMF ratings. It heats up quickly, feels solidly built, and the full spectrum infrared heat coverage makes a noticeable difference. I use it in the mornings before work and my wife prefers it before bed. It’s become part of both of our routines. Also really like the Bluetooth audio and red light options. Total win for home wellness.

Jonathon S. • Finnmark FD 3 Infrared Home Sauna

Verified buyer
Title

5

• 2 months ago

Looks incredible in my home

Not gonna lie, this sauna is a statement piece. Everyone who visits my house stops to admire it, it just looks so high-end. But it’s not just looks, the functionality is top-tier. If you're serious about saunas, Finnmark is the way to go.

 

Harlan D. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

The ultimate home wellness upgrade

We’ve used infrared saunas at spas for years and finally decided to invest in one for our home. This model is hands-down the most impressive we’ve experienced. The heat is intense but comfortable, and we love switching on the red light therapy after workouts or in the evening to wind down. The cedar interior smells amazing, and the controls are super easy to use—even from our phones. Worth every penny!

Derek L. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

High-performance unit our clients love

We added the FD-3 to our private therapy room as a recovery add-on, and our clients are thrilled with it. The fast heat-up time is a huge plus between sessions, and the combination of near and far infrared with red light has elevated our offering. The Wi-Fi app control makes it easy for staff to manage, and the antimicrobial cedar interior is perfect for high-frequency commercial use. It's already paid for itself in new memberships and therapy packages

Tyson P. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Very Happy

Heats up really fast and I love the cedar and color lights inside. I was going to purchase a Sunlighten but then saw this. Very happy I bought this one.

 

 

 

Denton P. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Has been a fantastic addition to my wellness routine.

Has been a fantastic addition to my wellness routine. Offers a comprehensive relaxation experience. The build quality is excellent, and the cedar interior adds a pleasant aroma and look.

Xavier M. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Better than expected!

I’m very impressed with the quality. I admit I was nervous ordering such a large item online without seeing it in person first, but it didn't disappoint. The wood finish is beautiful and feels very premium. I’ve already showed it off to my neighbors and they are jealous! Delivery was smooth too.

Jordan M. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Heats fast and feels like a professional-grade unit

After researching a ton of infrared saunas, we chose Finnmark because of the dual heater technology and the low EMF ratings. It heats up quickly, feels solidly built, and the full spectrum infrared heat coverage makes a noticeable difference. I use it in the mornings before work and my wife prefers it before bed. It’s become part of both of our routines. Also really like the Bluetooth audio and red light options. Total win for home wellness.

Jonathon S. • Finnmark FD 3 Infrared Home Sauna

Verified buyer
Title

5

• 2 months ago

Looks incredible in my home

Not gonna lie, this sauna is a statement piece. Everyone who visits my house stops to admire it, it just looks so high-end. But it’s not just looks, the functionality is top-tier. If you're serious about saunas, Finnmark is the way to go.

Harlan D. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

The ultimate home wellness upgrade

We’ve used infrared saunas at spas for years and finally decided to invest in one for our home. This model is hands-down the most impressive we’ve experienced. The heat is intense but comfortable, and we love switching on the red light therapy after workouts or in the evening to wind down. The cedar interior smells amazing, and the controls are super easy to use—even from our phones. Worth every penny!

Derek L. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

High-performance unit our clients love

We added the FD-3 to our private therapy room as a recovery add-on, and our clients are thrilled with it. The fast heat-up time is a huge plus between sessions, and the combination of near and far infrared with red light has elevated our offering. The Wi-Fi app control makes it easy for staff to manage, and the antimicrobial cedar interior is perfect for high-frequency commercial use. It's already paid for itself in new memberships and therapy packages

Tyson P. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Very Happy

Heats up really fast and I love the cedar and color lights inside. I was going to purchase a Sunlighten but then saw this. Very happy I bought this one.

Denton P. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Has been a fantastic addition to my wellness routine.

Has been a fantastic addition to my wellness routine. Offers a comprehensive relaxation experience. The build quality is excellent, and the cedar interior adds a pleasant aroma and look.

Xavier M. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

Better than expected!

I’m very impressed with the quality. I admit I was nervous ordering such a large item online without seeing it in person first, but it didn't disappoint. The wood finish is beautiful and feels very premium. I’ve already showed it off to my neighbors and they are jealous! Delivery was smooth too.

Jordan M. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

I would say that the Sauna kills inflammation

I would say that the Sauna kills inflammation, and anything growing in you. This Sauna would help anyone suffering from health problems. 

L.G. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

New Sauna

Love it, excellent so far

Mike T. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

I lost 15 pounds in two months

I lost 15 pounds in two months without even trying. I wasn’t even dieting I think I lost inflammation. I feel better and healthier since starting using it. We love our Sauna.

Anonymous • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

I would say that the Sauna kills inflammation

I would say that the Sauna kills inflammation, and anything growing in you. This Sauna would help anyone suffering from health problems. 

L.G. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

New Sauna

Love it, excellent so far

Mike T. • Finnmark FD 3 Infrared Home Sauna

Verified buyer

5

• 2 months ago

I lost 15 pounds in two months

I lost 15 pounds in two months without even trying. I wasn’t even dieting I think I lost inflammation. I feel better and healthier since starting using it. We love our Sauna.

Anonymous • Finnmark FD 3 Infrared Home Sauna

Verified buyer