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FD-4 Trinity Infra-Steam Sauna — 2-Person Home Sauna with Infrared + Traditional Heat + Red Light Therapy
Size: 48"W x 48"D x 78"H
🚚 Free Shipping to the contiguous United States (48 states).
The Trinity Combination Sauna is the only sauna available that combines Finnmark’s UL Listed Spectrum Plus infrared heaters with a Harvia Vega 120V traditional heater, plus true medical grade red light therapy. Everything runs on standard 120V power and plugs into a common outlet—so no electrician is needed. Enjoy the deep-penetrating power of short-wave infrared, the intensity of traditional rocks and steam, and the wellness-enhancing benefits of red light therapy—all in one refined home sauna.
Overview
No need to compromise. Finnmark’s FD-4 Trinity is the only combination sauna with true UL listed infrared heaters together with a traditional sauna heater. The IR panels, red light therapy, and the Harvia Vega heater are all powered by standard 120V and can be plugged into a common outlet.
- 3-in-1 experience: Infrared + Traditional Heat (rocks/steam) + Red Light Therapy
- Standard outlet power: 120V plug-in convenience (no electrician needed)
- Steam capability: Splash water on rocks for a classic steam sauna feel
- Premium build: Antimicrobial cedar interior + durable Thermal Plus™ Aspen exterior
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 producing 650nm red light therapy combined with chromotherapy.
- Antimicrobial Western Canadian cedar interior helps protect against mold, bacteria, and fungus for a fresher-smelling sauna.
- Thermal Plus™ Aspen exterior won’t rot, warp, decay, or chip for long-lasting durability.
- 3-IN-ONE Combination: UL listed infrared + traditional heater that produces high-heat steam + medical grade red light therapy.
- Built-in LCD touchscreen controller with Bluetooth audio.
- Audio system with 6" HiFi marine-grade speakers.
- 8mm tempered glass for excellent thermal retention.
- Extra-large two-tier bench system for comfortable seating.
- Low EMF sauna tested by a NASA award-winning testing facility.
- High emissivity infrared heaters.
Harvia Vega Compact 1900 Heater Details
Harvia Vega Compact 1900 (Traditional heat + steam with sauna stones)
- 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)
Stone note: Each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality stones for fit, form, and function (additional freight charges may apply).
Manufacturer’s Note: Sauna heater stones are significant to the unit’s safety. To keep warranty valid, proper maintenance is required.
Benefits of Infrared
- The technology of the Spectrum Plus incoloy heaters warms your core body temperature, producing a cleaner, healthier sweat while lowering blood pressure and supporting heart health.
- The natural heat produced by Spectrum Plus heaters is designed to achieve a more controlled hot climate—similar to a traditional sauna—without unbearable temperatures, helping you work up a strong sweat efficiently.
- Spectrum Plus heaters remove 17% more toxins such as cholesterol, fat-soluble toxins, toxic heavy metals, sulfuric acid, sodium, ammonia, and uric acid.
- Full Spectrum combination of long-wave Spectrum Carbon 360 infrared panels with UL-listed short-wave Spectrum Plus™ infrared panels provides higher temperatures, full body coverage, deeper penetration, and a better overall experience.
- Supports a more natural pain relief remedy with consistent sauna sessions.
- Athletes may appreciate faster recovery with increased blood flow to muscles, delivering more concentrated oxygen and creating more energy to heal.
What’s Included
- 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 Harvia AC3000 0–10cm sauna stones (29 lbs)
- Medical Grade LED Red Light Therapy (650nm) + Color Chromotherapy
- V2 LCD Controller 5" Touchscreen with Bluetooth
- ETL Certification
- Limited Warranty
Stone note: Natural stones vary in shape and size. An additional box may be recommended for best fit and selection (additional freight charges may apply).
Warranty
Limited Warranty: See manufacturer warranty document for full terms and coverage.
Shipping
🚚 Free Shipping to the contiguous United States (48 states).
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