Finnmark FD-4 Trinity 2 Person Hybrid Full Spectrum Sauna
Finnmark FD-4 Trinity 2 Person Hybrid Infrared & Steam Sauna
Upgrade your wellness routine with the Finnmark FD-4 Trinity 3-IN-1 Combination Indoor Sauna, a premium hybrid home sauna that combines Full Spectrum Infrared heat, traditional Finnish steam, and integrated red light wellness lighting in one beautiful unit. Designed for homeowners who want versatility without compromise, the Trinity gives you three powerful wellness experiences in a single sauna session. The Harvia Vega Compact 1900 sauna heater is included.
Three Sauna Experiences in One Premium Sauna
🔥 Full Spectrum Infrared Heat
Finnmark’s UL-listed Spectrum Plus™ infrared heaters provide a comfortable, penetrating warmth designed to support relaxation and everyday wellness routines.
Ideal for:
- Relaxation and stress reduction
- Post-workout recovery routines
- Comfort and warmth
- Daily wellness experiences
💨 Traditional Finnish Steam Sauna
The included 1.9 kW traditional sauna heater allows water to be poured over heated stones, creating authentic steam and humidity for a classic sauna experience. Enjoy higher temperatures and the invigorating feel of traditional Finnish sauna bathing.
🔴 Integrated Red Light Wellness Lighting
Built directly into the sauna interior, Spectrum Red Light™ panels add a calming wellness-focused environment designed to complement relaxation and recovery routines.
Designed for Indoor Use or Covered Outdoor Installation
Built primarily for indoor use, the FD-4 Trinity Combination Sauna also offers the flexibility to be installed outdoors when placed in a fully covered and weather-protected area. It is ideal for home gyms, wellness rooms, basements, garages, covered patios, and dedicated backyard spa spaces.
Premium Sauna Design & Construction
Finnmark combines premium materials with advanced sauna technology to create a refined and comfortable wellness experience.
Features include:
- Western Canadian cedar interior
- Thermal Plus™ exterior construction
- Extra-large two-tier bench system
- Built-in Wi-Fi touchscreen controller
- Bluetooth audio system with Hi-Fi speakers
- Tempered glass door and panels
- Low EMF design
- High-emissivity infrared heaters
Product Features
Why Choose the Finnmark FD-4 Trinity Hybrid Sauna?
- 3-IN-1 infrared + steam sauna experience
- Spacious 4-person capacity
- Full Spectrum infrared heating
- Traditional Finnish sauna functionality
- Integrated red light wellness lighting
- Premium craftsmanship and modern design
- Indoor or covered outdoor installation flexibility
Included Components
- Harvia Vega Compact 1900 sauna heater
- Sauna stones
- Integrated infrared heater system
- Built-in red light wellness lighting
- Touchscreen Wi-Fi control panel
- Bluetooth audio system
Product Specifications
Finnmark FD-4 Trinity Hybrid Sauna Specifications
Sauna Model: FD-4
- Exterior Material: Thermo-Aspen
- Interior Material: Western Red Cedar
- Voltage: 120V
- Infrared Wattage: 1,750 W
- Amperage: 15 / 20 Amps
- Plug Type: NEMA 5-15P
- Outlet Requirement: Standard 120V / 15A
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Maximum Temperature:
- Infrared: 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.
- Door Dimensions: 23.625"W × 68.875"H
- Door Handle Dimensions: 1.5"W × 13.25"H
- Glass Thickness: 8 mm (with gasket)
- Product Weight: 437 lbs
- Shipping Dimensions: 80"W × 40"D × 58"H
- Shipping Weight: 618 lbs
Heater Model: Harvia Vega Compact 1900
- Kilowatt Rating: 1.9 kW
- Primary Fuel Type: Electric
- Voltage: 120V
- Phase: Single Phase (1PH)
- Nominal Amperage: 15.9 Amps
- Minimum Adjusted Cubic Feet: 70 cu. ft.
- Maximum Adjusted Cubic Feet: 106 cu. ft.
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Heater Dimensions:
- Width: 11" (279 mm)
- Depth: 11" (279 mm)
- Height: 21" (533 mm)
- Heater Weight: 15.4 lbs
- Shipping Weight (with sauna stones): 59.4 lbs
Product Assembly & Manuals
Finnmark FD-4 Trinity Hybrid Sauna Downloads
Finnmark FD Trinity Installation & Operations Manual
Finnmark V2 WIFI Control Manual
Harvia Vega Heater Installation and Operations Manual