Finnmark FD-4 Trinity 2 Person Infrared Steam Sauna (FD-KN004)
Finnmark FD-4 Trinity 3-IN-ONE Combination Indoor Sauna
Full Spectrum Infrared • Traditional Steam • Red Light Therapy
Experience a new level of home wellness with the Finnmark FD-4 Trinity 3-IN-ONE Combination Sauna, a thoughtfully engineered retreat that brings together Full Spectrum Infrared heat, traditional Finnish steam, and integrated red light therapy, all within one beautifully crafted sauna cabin. Designed for those who want versatility without compromise, the Trinity offers a truly customizable wellness experience.
At the core of the Trinity is Finnmark’s advanced heating technology, combining UL-listed Spectrum Plus™ infrared heaters with a traditional 120V sauna heater. This dual system allows you to enjoy gentle infrared warmth or switch to authentic steam heat for a higher-temperature sauna session. The infrared system is capable of reaching temperatures up to 170°F, delivering an immersive heat experience while maintaining efficiency on a standard home electrical setup.
Enhancing the experience further is Spectrum Red Light™ Therapy, seamlessly integrated into the sauna interior. The low-level red light adds an additional sensory layer to your sessions, complementing both infrared and steam heat and elevating your overall wellness ritual.
The included 1.9kW traditional sauna heater allows water to be poured over heated stones, creating authentic steam and humidity for those who appreciate the intensity and atmosphere of a classic Finnish sauna. Each heating element is strategically positioned to deliver balanced, full-body warmth, allowing you to tailor each session to relaxation, recovery, or restoration.
Designed for indoor use, the Finnmark FD-4 Trinity blends advanced technology with refined craftsmanship, creating a sauna that feels both powerful and polished. Its thoughtful design supports daily use while offering the flexibility to adapt your sessions to your needs and preferences.
At Blue Luxe Living, we believe wellness should feel elevated, intentional, and effortless. The Finnmark FD-4 Trinity 3-IN-ONE Sauna is more than a sauna, it’s a complete home wellness system designed to support balance, recovery, and everyday self-care.
Product Features
🔥 Why Choose This Sauna?
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Antimicrobial Western Canadian cedar interior that protects against mold, bacteria and fungus.
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Thermal Plus™ Aspen exterior that will never rot, warp, decay or chip. Making Finnmark Designs full spectrum infrared saunas one of the healthiest and longest lasting saunas on the market.
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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 an experience better than any other sauna. Each heater is strategically placed to offer the highest level of therapy possible.
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Built-in LCD Wi-Fi touchscreen controller with bluetooth audio.
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Audio with 6" Hi-Fi speakers, 8mm tempered glass for the ultimate thermal retention.
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Removable and adjustable sauna feet for uneven surfaces.
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Low EMF sauna tested by a NASA award winning testing facility.
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High Emissivity infrared heaters
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High quality double walled construction with non-toxic wool insulation.
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Over 15,000 Sold
♨️ Health Benefits
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The technology of the Spectrum Plus incoloy heaters warms your core body temperature, producing a cleaner, healthier sweat while lowering blood pressure, and maintaining heart health.
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The natural heat produced by the Spectrum Plus heaters is designed to achieve a more controlled hot climate much like a traditional sauna without the unbearable heat temperatures. This deeper penetration through sweating goes beyond the muscle and fat rather than a traditional or hot air sauna. As a result, you're able to work up the best possible sweat in the least amount of time.
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Spectrum Plus heaters remove 17% more toxins such as cholesterol, fat-soluble toxins, toxic heavy metals, sulfuric acid, sodium, ammonia and uric acid.
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Full Spectrum Sauna combination of long-wave Spectrum Carbon 360 infrared panels with UL-listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and better experience than any other sauna.
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Reap the benefits of a more natural pain relief remedy with every infrared sauna session.
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Athletes can appreciate a faster muscle recovery with increased blood flow to the muscles, delivering more concentrated oxygen and creating more energy to heal.
Product Specifications
🔹Sauna Model: FD-4
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Exterior Material: Thermo-Aspen
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Interior Material: Western Red Cedar
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Voltage: 120V
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Infrared Wattage: 1,750 W
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Amperage: 15 / 20 Amps
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Plug Type: NEMA 5-15P
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Outlet Requirement: Standard 120V / 15A
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Maximum Temperature:
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Infrared: 170°F
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Traditional: 190°F
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Interior Dimensions: 44.25"W × 45.5"D × 75.5"H
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Exterior Dimensions: 48"W × 48"D × 83"H
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Room Volume: 86 cu. ft.
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Door Dimensions: 23.625"W × 68.875"H
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Door Handle Dimensions: 1.5"W × 13.25"H
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Glass Thickness: 8 mm (with gasket)
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Product Weight: 437 lbs
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Shipping Dimensions: 80"W × 40"D × 58"H
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Shipping Weight: 618 lbs
🔹Heater Model: Harvia Vega Compact 1900
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Kilowatt Rating: 1.9 kW
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Primary Fuel Type: Electric
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Voltage: 120V
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Phase: Single Phase (1PH)
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Nominal Amperage: 15.9 Amps
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Minimum Adjusted Cubic Feet: 70 cu. ft.
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Maximum Adjusted Cubic Feet: 106 cu. ft.
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Heater Dimensions:
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Width: 11" (279 mm)
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Depth: 11" (279 mm)
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Height: 21" (533 mm)
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Heater Weight: 15.4 lbs
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Shipping Weight (with sauna stones): 59.4 lbs
Product Assembly & Manuals
Finnmark FD Trinity Installation & Operations Manual
Finnmark V2 WIFI Control Manual
Harvia Vega Heater Installation and Operations Manual