
Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo – 4-Person Home Sauna
The Ultimate 3-in-1 Sauna for Maximum Wellness
Why settle for just one type of sauna when you can have all three? The Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo is the largest and most advanced home sauna available, offering infrared therapy, a Finnish steam sauna, and medical-grade red light therapy—all in one beautifully crafted unit.
Whether you want the deep-penetrating detox of infrared, the intense heat and steam of a traditional sauna, or the skin-rejuvenating benefits of red light therapy, this sauna delivers it all.
Designed for up to four people, the Trinity XL is engineered for performance and luxury, with Finnmark’s UL-listed Spectrum Plus™ infrared heaters, a powerful Harvia KIP 4.5kW traditional sauna heater, and medical-grade Spectrum Red Light™ Therapy.
Built with premium Western Canadian cedar and Thermal Plus™ Aspen, this sauna is naturally antimicrobial, warp-resistant, and designed to last a lifetime.

Finnmark Designs FD-5 Features
- 3-in-1 Infrared, Steam & Red Light Therapy: The only sauna to combine UL-listed Spectrum Plus™ infrared heaters, a powerful Finnish steam sauna heater, and medical-grade red light therapy for a complete wellness experience.
- Harvia KIP 4.5kW Traditional Sauna Heater: Enjoy an authentic Finnish sauna experience—splash water on the sauna stones for an intense burst of therapeutic steam.
- Spectrum Plus™ UL-Listed Infrared Heaters: Short-wave infrared heat penetrates 25x deeper than standard carbon panels, helping to detox at the cellular level.
- Medical-Grade Spectrum Red Light™ Therapy: A 192-diode LED panel delivers 650nm red light therapy, which stimulates collagen production, promotes faster muscle recovery, and enhances circulation.
- Western Canadian Cedar Interior: Naturally antimicrobial, resisting mold, bacteria, and fungus to keep your sauna fresh.
- Thermal Plus™ Aspen Exterior: Warp-resistant and built to last, ensuring long-term durability without rot, warping, or decay.
- 8mm Tempered Glass & Two-Tier Bench System: Designed for optimal heat retention, with an extra-large, ergonomic seating area for maximum comfort.
- Low EMF, NASA-Tested Heaters: Ensures safe and effective infrared therapy with minimal electromagnetic field exposure.
- V2 LCD Touchscreen & Bluetooth Audio: Easily adjust temperature, lighting, and music via a 5” touchscreen controller with marine-grade HiFi speakers.
FD-5 Trinity XL Infra-Steam Sauna Specifications
- Exterior Material: Thermo-Aspen
- Interior Material: Western Canadian Cedar
- Electrical Requirements: 240V / 2700W (Infrared) + 4.5kW (Traditional) / 18.8A / NEMA 6-15 plug
- Maximum Temperature: Infrared: 170°F / Traditional: 190°F
- Interior Dimensions: 71” W x 57.5” D x 75.5” H
- Exterior Dimensions: 75” W x 64” D x 83” H
- Room Volume: 130 cu. ft.
- Glass Thickness: 8mm with Gasket
- Product Weight: 575 lbs
- Shipping Weight: 654 lbs (including pallet)
- Warranty: Covered by the manufacturer’s limited warranty
Harvia KIP 4.5kW Sauna Heater Specifications
- Material: Stainless Steel
- Power: 4.5kW
- Voltage: 240V / 18.8 Amps
- Room Capacity: 100-210 cu. ft.
- Dimensions: 16” W x 11” D x 24” H
- Weight: 40 lbs (with stones: 84 lbs)
- Controls: Built-in, ergonomic operating switches

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The Finnmark FD-5 Trinity XL Infrared & Steam Sauna is the ultimate home sauna for relaxation, detox, and recovery.