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Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Traditional Sauna

Sale price$7,795.00

In stock
Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Traditional Sauna
Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Traditional Sauna Sale price$7,795.00
Description

The Finnmark FD-4 Trinity is a 2-person hybrid sauna that combines infrared heating, traditional sauna heating, and integrated red light therapy in one compact design. Built with a Western Canadian Cedar interior and Thermal Plus™ Aspen exterior, this sauna is designed for indoor home wellness use while offering flexible heating options based on user preference.

The sauna includes Finnmark Spectrum Plus™ infrared heaters, a Harvia Vega Compact 1900 traditional sauna heater, Bluetooth audio, Wi-Fi touchscreen controls, and an integrated LED lighting system. Users can operate infrared mode, traditional sauna mode, or both systems together.

Designed for residential wellness environments, the FD-4 features tempered glass construction, low EMF heater technology, and a two-tier bench layout for added comfort.

Features
  • 2-person hybrid sauna design
  • Combination infrared and traditional sauna heating system
  • Finnmark Spectrum Plus™ UL-listed infrared heaters
  • Spectrum Carbon 360° infrared heating panels
  • Integrated Spectrum Red Light™ therapy panel
  • Harvia Vega Compact 1900 traditional sauna heater included
  • Traditional heater supports sauna stone heating and water ladling
  • Built-in LCD Wi-Fi touchscreen controller
  • Bluetooth audio system with 6" Hi-Fi speakers
  • Western Canadian Cedar interior
  • Thermal Plus™ Aspen exterior
  • Extra-large two-tier bench system
  • 8 mm tempered glass door with gasket
  • Low EMF heater design
  • LED interior lighting system
  • ETL certified components
Specifications
Specification Details
Model FD-4
Capacity 2 Person
Sauna Type Hybrid Infrared + Traditional
Interior Material Western Red Cedar
Exterior Material Thermal Plus™ Aspen
Infrared Heater Type Spectrum Plus™ + Spectrum Carbon 360°
Traditional Heater Harvia Vega Compact 1900
Heater Output 1.9 kW
Voltage 120V
Plug Type NEMA 5-15P
Recommended Outlet Standard 120V / 15A
Infrared Temperature Range Up to 170°F
Traditional Sauna Temperature Up to 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 Glass Thickness 8 mm
Product Weight 437 lbs
Shipping Weight 618 lbs
Certification ETL Certified
Included
  • Bottom panel
  • Top panel
  • Back panel
  • Front panel
  • Left and right side panels
  • Tempered glass door
  • Bench support and bench top
  • Heater cable and floor cable
  • Power supply unit and power cable
  • Infrared heater panels
  • Harvia Vega Compact 1900 sauna heater
  • 1 box Harvia AC3000 sauna stones (29 lbs)
  • LCD Wi-Fi touchscreen controller
  • Bluetooth audio system with Hi-Fi speakers
  • Spectrum Red Light™ therapy panel
  • Interior LED lighting
  • Hardware and assembly components

Two Sauna Experiences. One Powerful System.

A hybrid sauna combines the gentle, deep heat of infrared therapy with the intense warmth and steam of a traditional heater. Enjoy each system on its own or together for a fully customizable sauna session tailored to your body and preferences.

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WHAT MAKES IT HYBRID?

The perfect combination of two powerful sauna technologies

Our Hybrid Sauna brings together infrared Therapy and Traditional Sauna Heat, giving you the freedom to enjoy the benefits of both wolrds. use them separately or together for a fully customized sauna experience.

Infographic comparing infrared, hybrid, and traditional sauna systems with images and text.

Frequently Asked Questions

Have more concerns regarding Hybrid Sauna?

Speak to an expert

Let us assist you. Book an appointment with one of our Sauna sanctum expert to get answer to all of your concerns!

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What Sauna Sanctum Stands For

Authorized Brand & Reseller Relationships

Sauna Sanctum is an authorized reseller for selected sauna and wellness brands we carry, including SaunaLife, Harvia, HUUM, Kohler, Finnmark, Saunum, Rento, and Vital Red Light. Sauna Sanctum is an authorized dealer and reseller for Genevas. Products are sourced through approved brand, distributor, wholesale, or manufacturer-supported channels to help ensure genuine products, applicable warranty support, and reliable fulfillment.

Packed with Care & Delivered with Confidence

Every order is fulfilled through authorized U.S. distributor warehouses, brand-affiliated fulfillment centers, or manufacturer-direct fulfillment channels, depending on the brand and product category. Orders ship by ground or freight delivery based on product size, weight, and packaging requirements. We ship within the 48 contiguous United States, with large or high-value products professionally packaged or palletized at the source for safe delivery.

Dedicated Before & After Purchase Support

From choosing the right sauna to understanding delivery and setup, our Sauna Sanctum support team is available to guide you at every step. We remain available after delivery to help with questions, documentation, warranty guidance, and next steps.

Description

The Finnmark FD-4 Trinity is a 2-person hybrid sauna that combines infrared heating, traditional sauna heating, and integrated red light therapy in one compact design. Built with a Western Canadian Cedar interior and Thermal Plus™ Aspen exterior, this sauna is designed for indoor home wellness use while offering flexible heating options based on user preference.

The sauna includes Finnmark Spectrum Plus™ infrared heaters, a Harvia Vega Compact 1900 traditional sauna heater, Bluetooth audio, Wi-Fi touchscreen controls, and an integrated LED lighting system. Users can operate infrared mode, traditional sauna mode, or both systems together.

Designed for residential wellness environments, the FD-4 features tempered glass construction, low EMF heater technology, and a two-tier bench layout for added comfort.

Features
  • 2-person hybrid sauna design
  • Combination infrared and traditional sauna heating system
  • Finnmark Spectrum Plus™ UL-listed infrared heaters
  • Spectrum Carbon 360° infrared heating panels
  • Integrated Spectrum Red Light™ therapy panel
  • Harvia Vega Compact 1900 traditional sauna heater included
  • Traditional heater supports sauna stone heating and water ladling
  • Built-in LCD Wi-Fi touchscreen controller
  • Bluetooth audio system with 6" Hi-Fi speakers
  • Western Canadian Cedar interior
  • Thermal Plus™ Aspen exterior
  • Extra-large two-tier bench system
  • 8 mm tempered glass door with gasket
  • Low EMF heater design
  • LED interior lighting system
  • ETL certified components
Specifications
Specification Details
Model FD-4
Capacity 2 Person
Sauna Type Hybrid Infrared + Traditional
Interior Material Western Red Cedar
Exterior Material Thermal Plus™ Aspen
Infrared Heater Type Spectrum Plus™ + Spectrum Carbon 360°
Traditional Heater Harvia Vega Compact 1900
Heater Output 1.9 kW
Voltage 120V
Plug Type NEMA 5-15P
Recommended Outlet Standard 120V / 15A
Infrared Temperature Range Up to 170°F
Traditional Sauna Temperature Up to 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 Glass Thickness 8 mm
Product Weight 437 lbs
Shipping Weight 618 lbs
Certification ETL Certified
Included
  • Bottom panel
  • Top panel
  • Back panel
  • Front panel
  • Left and right side panels
  • Tempered glass door
  • Bench support and bench top
  • Heater cable and floor cable
  • Power supply unit and power cable
  • Infrared heater panels
  • Harvia Vega Compact 1900 sauna heater
  • 1 box Harvia AC3000 sauna stones (29 lbs)
  • LCD Wi-Fi touchscreen controller
  • Bluetooth audio system with Hi-Fi speakers
  • Spectrum Red Light™ therapy panel
  • Interior LED lighting
  • Hardware and assembly components