Finnmark FD-4 Trinity Infrared and Steam Sauna Combo with red light therapy and wooden cabin
Finnmark FD-4 Trinity Infrared and Steam Sauna Combo with wooden exterior and glass door
Finnmark FD-4 Trinity infrared and steam sauna combo with Spectrum Red Light therapy and traditional Finnish sauna features
Finnmark FD-4 Trinity 3-in-1 infrared and steam sauna combo with wooden cabin and glass door
Finnmark FD-4 Trinity infrared and steam sauna combo with wooden cabin and glass door
Finnmark FD-4 Trinity infrared and steam sauna combo with red light therapy and traditional Finnish sauna features
Finnmark FD-4 infrared and steam sauna combo wooden cabin interior top view
Finnmark FD-4 Trinity Infrared and Traditional Steam Sauna Combo with Harvia heater
Finnmark FD-4 Trinity Infrared and Steam Sauna Combo with Spectrum Plus heaters, Harvia steam, and red light therapy
Finnmark FD-4 Trinity infrared and steam sauna combo wooden sauna cabin in modern bathroom

Finnmark

Finnmark FD-4 Trinity Infrared & Steam Sauna Combo

HSA/FSA Accepted
FDA Registered

✓ Authorized Finnmark Dealer

✓ Price Match Guaranteed
✓ Expected to be back in stock by Mid February

✓ Speak with a Wellness Expert- 1 (800) 398-3770

$7,795.00
Shipping calculated at checkout.
Add Ons
Add Ons: None
Out of stock
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Speak with a Wellness Expert

Call us at: 1 (800) 398-3770

Monday-Saturday: 9am-6pm EST

Fast & Secure Shipping

Secure shipping options are available for all products.

Price Match Guarantee

If you find a lower price from an authorized dealer, we will match or beat it whenever possible.

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Scientifically-Proven Benefits

Encourages Relaxation and Better Sleep Quality

Enhanced Cardiovascular & Circulatory Function

Stress Reduction, Improved Relaxation & Better Sleep

Longevity & Cognitive Support

The Trinity 3-IN-ONE: The Ultimate Sauna Experience

Experience it all — infrared, steam, and red light therapy — in one luxurious design. The Finnmark FD-4 Trinity Combination Sauna is the only sauna that unites UL-listed Spectrum Plus™ infrared heaters, a traditional 120V Finnish sauna stove, and medical-grade Spectrum Red Light™ Therapy for a complete wellness experience.

No compromises. Spectrum Plus™ short-wave infrared heaters heat up quickly, penetrating deep into muscles and joints to promote detoxification and deliver a sweat up to 25× more effective than standard carbon heaters.

Enjoy the authentic steam experience with the 1.9 kW traditional heater, allowing you to pour water over the rocks for that classic Finnish feel.

The Red Light Therapy system enhances your wellness routine by stimulating collagen production, improving circulation, and supporting natural healing.

With Full Spectrum technology, combining long-wave Carbon 360™ and short-wave Spectrum Plus™ panels, you’ll achieve deeper heat, superior detoxification, pain relief, and faster muscle recovery — all in record time.

Trinity 3-IN-ONE Sauna — Key Features

Discover the most advanced sauna ever created. The Finnmark Designs Trinity 3-IN-ONE combines infrared, steam, and red light therapy into one exceptional wellness experience — designed for performance, durability, and total rejuvenation.

Premium Features

  • Spectrum Plus™ UL-Listed Short-Wave Infrared Heaters
    Delivers deep, penetrating heat — up to 25× more effective than standard carbon panel heaters — for faster detoxification and muscle recovery.
  • Spectrum Red Light™ Therapy Panel
    Features 192 medical-grade diodes producing 650nm red light and chromotherapy, promoting skin rejuvenation, collagen production, and overall cellular health.
  • Antimicrobial Western Canadian Cedar Interior
    Naturally resists mold, bacteria, and fungus, ensuring a clean and safe environment with every session.
  • Thermal Plus™ Aspen Exterior
    Built to last — will never rot, warp, decay, or chip, making it one of the most durable sauna exteriors available.
  • 3-IN-ONE Combination Design
    The only sauna that combines UL-listed infrared heaters, a traditional steam heater, and medical-grade red light therapy — giving you every wellness benefit in one unit.
  • Built-in LCD Wi-Fi Touchscreen Controller with Bluetooth Audio
    Easily control temperature, lighting, and sound with intuitive smart features and 6” Hi-Fi speakers for a relaxing experience.
  • Superior Construction & Comfort
    Includes 8mm tempered glass for thermal retention, an extra-large two-tier bench system, and low EMF infrared heaters verified by a NASA award-winning testing facility.
  • Harvia Vega Compact 1900 Heater (Made in Finland)Wall-mounted stainless steel design1.9 kW output — ideal for sauna rooms from 70–106 cu. ft.Built-in ergonomic controls (right or left installation)Requires 29 lbs of sauna stones (Model AC3000); we recommend purchasing an extra box for optimal fit and performanceDimensions: 11"W x 11"D x 21"H2-Year Consumer Warranty.

FAQs

What does shipping cost and how is delivery handled?

Shipping & Freight Cost
This product ships FREE to the contiguous United States.
Shipping to Canada is $490.

Note: On rare occasions, remote or complex delivery areas may not qualify for these standard rates.

If you need a freight quote for other areas, please email sales@therecoveryoutlet.com

About This Delivery
Because the Finnmark FD-4 is a premium indoor infrared sanctuary, it requires delivery by special freight appointmentand arrives securely packaged on a wooden pallet.

  • Delivery is curbside only
  • The driver will lower the shipment to ground level
  • Inside placement, stair carry, and assembly are not included

Before shipping, we often contact customers to discuss delivery details and identify any circumstances that could complicate delivery or cause additional expense. Our goal is to ensure a smooth and successful arrival.

What are the dimensions and weight of the Finnmark FD-4 Infrared Room Kit?

Product Dimensions & Weight

  • Width: 80 inches
  • Depth: 40 inches
  • Height: 58 inches
  • Weight: Approximately 618 lbs

Due to the size and weight of this sauna, we recommend:

  • Confirming adequate space for final placement
  • Ensuring clear access for pallet delivery
  • Planning assistance to move components indoors after curbside drop-off

The FD-4 is designed for indoor residential installation and provides a generously sized infrared environment for comfort and relaxation.

What are some key features of the sauna and what warranty coverage is included?

Key Features of the Finnmark FD-4 Infrared Room Kit

This premium infrared room kit includes thoughtful design elements and quality components for a refined sauna experience:

  • Advanced infrared heating panels designed for even, comfortable heat distribution
  • Interior bench seating for easy, relaxed positioning
  • User-friendly control panel for temperature and session adjustments
  • Built-in lighting system for ambience and visibility
  • Pre-cut sauna components engineered for streamlined assembly

The Finnmark FD-4 combines elegant design with functional features that support comfort, presence, and daily use within a home environment.

Warranty Information

The Finnmark FD-4 Infrared Room Kit is backed by a manufacturer’s limited warranty, intended to provide coverage for residential use when the sauna is installed and maintained according to the manufacturer’s instructions.

Key points generally included in Finnmark’s warranty structure:

  • Sauna cabin (wood structure): 10-year limited warranty
  • Infrared heating elements: Covered under the manufacturer’s residential warranty terms
  • Controls and power components: Covered for manufacturing defects under normal residential use
  • Warranty applies to the original purchaser only

The warranty does not cover damage from improper installation, misuse, abuse, commercial use, or non-factory installed components.

For complete warranty terms, exclusions, and exact coverage details, refer to the Finnmark Designs warranty documentation or contact us for clarification before purchase.

Here at TRO, we understand that building a wellness space at home takes planning. Our team is here to help you choose the right equipment with confidence.
Call us at 1 (800) 398-3770

Product Specifications

  • Model: FD-4
  • Exterior: Thermo-Aspen
  • Interior: Western Red Cedar
  • Voltage: 120V
  • Power: 1750W | 15/20 Amps | NEMA 5-15P Plug
  • Outlet: Standard 120V / 15A
  • Max Temperature: IR 170°F | Traditional 190°F
  • Interior Dimensions: 44.25"W × 45.5"D × 75.5"H
  • Exterior Dimensions: 48"W × 48"D × 83"H
  • Room Volume: 86 cu. ft.
  • Glass Door: 23.6"W × 68.9"H | 8mm Thick w/ Gasket
  • Weight: 437 lbs (Shipping: 618 lbs)
  • Shipping Dimensions: 80"W × 40"D × 58"H

Heater Details (Harvia Vega Compact 1900)

  • Power Output: 1.9 kW | Electric | 120V / 1PH
  • Coverage: 70–106 cu. ft. room volume
  • Amperage: 15.9A
  • Dimensions: 11"W × 11"D × 21"H
  • Weight: 15.4 lbs (59.4 lbs with sauna stones)

Add-on

Finnmark FD-4 Sauna Cover | 48″×48″×83″

The Finnmark FD-4 Sauna Cover is a premium all-season protective cover tailored to sauna cabins with a footprint of roughly 48″ x 48″ x 83″. Constructed with a waterproof Aqualon roof, marine-grade canvas sidewalls, reinforced marine-grade hardware and an accessible roll-up front door with ties, this cover shields your sauna investment from the elements while maintaining style and durability.

$1,298.00
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