
FD-4
Luxury Meets Efficiency
Built for comfort and maximum heat exposure. The FD-4 is equipped with low EMF full spectrum infrared technology that can reach 170°F in less than an hour. The FD series is the only infrared sauna that combines long-wave carbon 360 infrared panels with UL listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and a better sweating experience.













FD-4 Full Spectrum Hybrid Sauna
Requires Assembly
2-Men (1-Hour) Assembly
Description
Features
What's Included?
Size & Weight
Electrical Specs
Shipping & Delivery
Warranty
Documents
DESCRIPTION
Finnmark Designs is the only infrared sauna manufacturer that combines long-wave carbon 360 infrared panels with UL listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and a better sweating experience - better than any other IR sauna. Each heater is strategically placed to offer the highest level of therapy possible. If you're looking for the best commercial-grade infrared sauna available, look no further.
KEY FEATURES
- Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters.
- Spectrum Red Light™ Therapy. 192 Diode medical grade LED panel capable of producing highly beneficial 650nm of red light therapy combined with chromotherapy for those days you need a little love.
- Antimicrobial Western Canadian cedar interior that protects against mold, bacteria and fungus.
- Thermal Plus™ Aspen exterior that will never rot, warp, decay or chip. Making FinnMark Design's full spectrum infrared saunas one of the healthiest and longest lasting saunas on the market.
- 3-IN-ONE Combination. Compromise no more. Introducing the only combination sauna with true UL listed infrared heaters combined with a traditional heater that produces high heat steam. Get all the benefits of infrared combined with traditional rocks with steam all while soaking in the benefits of a medical grade Red light therapy LED panel.
- Built-in LCD touchscreen controller with Bluetooth audio.
- Audio with 6" HiFi marine grade speakers, 8mm tempered glass for the ultimate thermal retention.
- Extra large two-tier bench system
- Low EMF sauna tested by a NASA award winning testing facility.
- High Emissivity infrared heaters
Harvia Vega Compact 1900
- Wall-mounted design
- Stainless Steel construction
- 1.9kW
- For sauna rooms from 70 to 106 cu. ft.
- Requires a minimum of 29 lbs of sauna stones (1 Box-AC3000)
- Built-in controls
- Ergonomic operating switches
- Switches can be installed on the right or left side of the heater
- Designed, engineered, and made in Finland
- Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm)
- 2-Year Warranty (Consumer use)
Easy installation
Arrives disassembled on a LTL Freight truck. Requires 2-persons 1-hour to assemble
Lighting
Dotless LED lighting
Bluetooth Speakers
Yes
Size
The FD-4 is suitable for 2-persons
Certifications
UL, CE, ETL
WHAT'S INCLUDED?
Model FD-4 Full Spectrum Infrared Sauna
- Bottom Panel
- Top Panel
- Back Panel
- Front Panel
- Left Panel
- Right Panel
- Glass Door
- Bench Support
- Bench Top
- Heater Cable
- Floor Cable
- Screws
- Power Supply Unit
- Power Cable
- Interior Heater Connections with Wood Cover
- Door Handle (2 Screws)
- Infrared Sauna Heater Panels
- Harvia Vega Compact 1900 Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm sauna stones (29 lbs)
- Medical Grade LED Red light therapy with 650nm plus color chromotherapy
- V2 LCD Controller 5" Touchscreen with Bluetooth
- ETL Certification
- Limited Warranty
SIZE & WEIGHT
Interior Finish
Western Canadian Cedar
Exterior Finish
Thermo-Aspen
Floor Type
Duckboard
Lighting Type
Interior LED lighting system with red light therapy feature
Interior
44.25"W x 45.5"D x 75.5"H
Exterior
48"W x 48"D x 83"H
Glass Door
Glass Tempered, 8mm Thick
Bluetooth Speakers
Yes
Shipping Weight
441 lbs
Capacity
Up to 2 bathers
ELECTRICAL SPECS
OVERVIEW
This sauna requires a 120v/15amp receptacle for the heaters, lights and speakers. No special electrical is required.
Volts: 120
IR Watts: 1750
Amperage: 15/20
Plug Type: NEMA 5-15P
Outlet: Standard 120v 15a
Maximum Temperature: IR 170ºF - Traditional 190ºF
SHIPPING & DELIVERY
READY TO SHIP!
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, and assembly 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
Finnmark Designs is the only infrared sauna manufacturer that combines long-wave carbon 360 infrared panels with UL listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and a better sweating experience - better than any other IR sauna. Each heater is strategically placed to offer the highest level of therapy possible. If you're looking for the best commercial-grade infrared sauna available, look no further.
Features
KEY FEATURES
- Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters.
- Spectrum Red Light™ Therapy. 192 Diode medical grade LED panel capable of producing highly beneficial 650nm of red light therapy combined with chromotherapy for those days you need a little love.
- Antimicrobial Western Canadian cedar interior that protects against mold, bacteria and fungus.
- Thermal Plus™ Aspen exterior that will never rot, warp, decay or chip. Making FinnMark Design's full spectrum infrared saunas one of the healthiest and longest lasting saunas on the market.
- 3-IN-ONE Combination. Compromise no more. Introducing the only combination sauna with true UL listed infrared heaters combined with a traditional heater that produces high heat steam. Get all the benefits of infrared combined with traditional rocks with steam all while soaking in the benefits of a medical grade Red light therapy LED panel.
- Built-in LCD touchscreen controller with Bluetooth audio.
- Audio with 6" HiFi marine grade speakers, 8mm tempered glass for the ultimate thermal retention.
- Extra large two-tier bench system
- Low EMF sauna tested by a NASA award winning testing facility.
- High Emissivity infrared heaters
Harvia Vega Compact 1900
- Wall-mounted design
- Stainless Steel construction
- 1.9kW
- For sauna rooms from 70 to 106 cu. ft.
- Requires a minimum of 29 lbs of sauna stones (1 Box-AC3000)
- Built-in controls
- Ergonomic operating switches
- Switches can be installed on the right or left side of the heater
- Designed, engineered, and made in Finland
- Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm)
- 2-Year Warranty (Consumer use)
Easy installation
Arrives disassembled on a LTL Freight truck. Requires 2-persons 1-hour to assemble
Lighting
Dotless LED lighting
Bluetooth Speakers
Yes
Size
The FD-4 is suitable for 2-persons
Certifications
UL, CE, ETL
What's Included?
WHAT'S INCLUDED?
Model FD-4 Full Spectrum Infrared Sauna
- Bottom Panel
- Top Panel
- Back Panel
- Front Panel
- Left Panel
- Right Panel
- Glass Door
- Bench Support
- Bench Top
- Heater Cable
- Floor Cable
- Screws
- Power Supply Unit
- Power Cable
- Interior Heater Connections with Wood Cover
- Door Handle (2 Screws)
- Infrared Sauna Heater Panels
- Harvia Vega Compact 1900 Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm sauna stones (29 lbs)
- Medical Grade LED Red light therapy with 650nm plus color chromotherapy
- V2 LCD Controller 5" Touchscreen with Bluetooth
- ETL Certification
- Limited Warranty
Size & Weight
SIZE & WEIGHT
Interior Finish
Western Canadian Cedar
Exterior Finish
Thermo-Aspen
Floor Type
Duckboard
Lighting Type
Interior LED lighting system with red light therapy feature
Interior
44.25"W x 45.5"D x 75.5"H
Exterior
48"W x 48"D x 83"H
Glass Door
Glass Tempered, 8mm Thick
Bluetooth Speakers
Yes
Shipping Weight
441 lbs
Capacity
Up to 2 bathers
Electrical Specs
ELECTRICAL SPECS
OVERVIEW
This sauna requires a 120v/15amp receptacle for the heaters, lights and speakers. No special electrical is required.
Volts: 120
IR Watts: 1750
Amperage: 15/20
Plug Type: NEMA 5-15P
Outlet: Standard 120v 15a
Maximum Temperature: IR 170ºF - Traditional 190ºF
Shipping & Delivery
SHIPPING & DELIVERY
READY TO SHIP!
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, and assembly 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
Documents
Design
DIMENSIONS
Exterior: 48"W x 48"D x 83"H
Interior: 44.25"W x 45.5"D x 75.5"H
MATERIALS
Exterior: Thermal Plus™ Aspen
Interior: Antimicrobial Western Canadian Cedar

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 FD Series: "The FD series is one of the only saunas on the market that truly achieves 170F°. With uncompromised quality and durability, Finnmark backs it up with an industry leading warranty. It's hard to find flaws in a high quality infrared sauna. There's a few things we look out for that put this sauna into a different category of luxury. The glass door thickness, cedar wood quality, low EMF, and deep penetrating full spectrum wavelength therapy."
BRAND SPOTLIGHT
Finnmark



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-hour)
You'll want a strong foundation to support your sauna. It is not recommended to install your sauna directly onto rug inside your home.
INSTALL
Electrical install is plug & play. The FD-4 plugs into a standard 15amp/120v receptacle to power infrared panels. *Please consult your local electrician for traditional heater installation.
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-hour)
You'll want a strong foundation to support your sauna. It is not recommended to install your sauna directly onto rug inside your home.
Install
INSTALL
Electrical install is plug & play. The FD-4 plugs into a standard 15amp/120v receptacle to power infrared panels. *Please consult your local electrician for traditional heater installation.
Let customers speak for us
from 50 reviews
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.
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.
Received order quickly. Great service
Had a great experience working with the Cold Plunge Guys and would highly recommend their products!
Honest, knowledgeable and reliable. I appreciate all the care that goes into each personal interaction.
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.
BEING A NEW OWNER OF A COLD PLUNGE TUB AND A SAUNA/STEAM for 6, i WAS COMPLETELY OVERWHELMED WITH THE PROCESS OF PURCHASING, INSTALLING AND MAINTAINING MY NEW UNITS. Cold plunge guys were there for us from day 1 thru the final installation, operation and maintenance were discussed and verified! Thank God I chose the COLD PLUNGE GUYS!
HUUM Drop 6kW Sauna Heater Package
Cold plunge guys helped us outfit our new recovery studio and the customer service from Mitch was above and beyond
We just launched a contrast therapy studio and after lots of research and conversations went with cold plunge guys. Mitch was amazing throughout the entire process and was right there beside us building the saunas. Everything has functioned flawless so far couldn’t be happier!
Love our new cold plunge from Cold Plunge Guys! The barrel itself is really beautiful, even better in person than in photos. We have the Balboa chiller to go along with the barrel — had a couple hiccups setting it up, but Cold Plunge Guys were super responsive and helpful with getting it up and running. To that point, the customer service at Cold Plunge Guys is unmatched — A++. If they charged a premium for their cold plunge — which they don’t — it would be worth it for the customer service alone. As for the cold plunge experience itself — it’s so much harder to do than the influencers on the gram make it seem, but the feeling after is just amazing. No regrets!
Great customer service, and happy with my sauna purchase!
Bottom line, there are alternative places to purchase these Sauna units, BUT I can NOT imagine ANY of them will give you their cell phone numbers and emails like the Cold Plunge Guys do! Custonmer service is a lost art in so many businesses today, but NOT at CPG! The follow-up calls/emails that I asked for and received were amazing, and I feel like I was a little high maintenance... lol. I'm so happy with my purchase from CPG and would highly recommend them.
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.
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.
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G4




