Description

Experience three approaches to at-home wellness in one premium sauna with the Finnmark Designs FD-4 Trinity Combination Sauna. This innovative design brings together full-spectrum infrared heating, a traditional electric sauna heater, and Spectrum Red Light™ Therapy, allowing you to customize your sauna experience to suit your preferences.

The FD-4 combines UL-listed Spectrum Plus™ short-wave infrared heaters with a Harvia Vega Compact 1.9kW traditional sauna heater, giving you the option to enjoy infrared warmth or a traditional sauna experience with heated stones and steam. A Western Canadian cedar interior, durable Thermo-Aspen exterior, Wi-Fi touchscreen controls, Bluetooth audio, and an integrated red light therapy panel complete this versatile wellness retreat.

Key Features

• Three-in-One Sauna Experience: Combines infrared heating, traditional electric sauna heating, and Spectrum Red Light™ Therapy in one cabin.
• UL-Listed Spectrum Plus™ Infrared Heaters: Short-wave infrared heaters are designed to provide deep-penetrating warmth alongside traditional sauna heat.
• Traditional Harvia Sauna Heater: The included 1.9kW Harvia Vega Compact heater allows water to be added to the sauna stones for a traditional steam experience, following the manufacturer's instructions.
• Spectrum Red Light™ Therapy: Integrated 192-diode LED panel featuring 650nm red light, combined with chromotherapy.
• Premium Natural Materials: Features an antimicrobial Western Canadian cedar interior and a durable Thermo-Aspen exterior.
• Smart Touchscreen Controls: Built-in LCD touchscreen with Wi-Fi connectivity for convenient control.
• Integrated Bluetooth Audio: Enjoy your favorite music through built-in 6-inch Hi-Fi speakers.
• Near-Infrared LED Lighting: Spectrum LED near-infrared ceiling lights complement the red light therapy panel.
• Two-Tier Bench System: Extra-large upper and lower benches provide flexible seating options.
• Low-EMF Design: Tested by a NASA award-winning testing facility, according to the manufacturer.
• Tempered Glass Door: 8mm tempered glass adds a modern finish and supports thermal retention.

Designed for a Personalized Sauna Experience

The FD-4 Trinity offers flexibility for those who want more than one type of sauna experience at home. Enjoy infrared warmth, a traditional sauna session with heated stones, or incorporate the integrated red light panel into your wellness routine.

With its premium wood construction, two-tier bench system, and modern controls, the FD-4 combines traditional sauna elements with contemporary recovery features in one thoughtfully designed cabin.

Specifications

Sauna Specifications

Harvia Vega Compact 1900 Heater Specifications

What's Included

• Sauna floor, top, front, back, left, and right panels
• Glass door and door handle
• Bench top and bench support
• Two-tier bench system
• Infrared sauna heater panels
• Harvia Vega Compact 1900 traditional sauna heater
• One box of Harvia AC3000 sauna stones (29 lbs)
• Spectrum LED near-infrared ceiling lights combined with Spectrum Red Light™ Therapy
• Controller 2.0 with built-in LCD Wi-Fi touchscreen and Bluetooth audio
• Heater and floor cables
• Power supply unit and power cable
• Interior heater connections with wood cover
• Assembly screws
• ETL certification documentation
• Limited warranty documentation

Sauna stone note: Natural stones vary in shape and size. The manufacturer recommends purchasing an additional box of stones to allow for better selection and fit. Additional freight charges may apply.

Delivery & Shipping

Free shipping to the contiguous United States.

This sauna ships by freight on a wooden pallet and requires a scheduled delivery appointment. Standard delivery is curbside, with the carrier lowering the shipment to ground level. Delivery does not typically include moving the sauna indoors, unpacking, or assembly.

Due to the size and weight of the shipment, customers may be contacted before shipping to confirm delivery details and identify any access or location considerations that could affect delivery. Remote or complex delivery areas may require additional charges.

For shipping quotes outside the contiguous United States, contact the supplier for availability and pricing.

Product Manual

FD-4 Trinity Product Manual 

Refer to the official product manual for assembly instructions, operating guidelines, electrical requirements, heater operation, sauna stone use, and care recommendations.

Warranty Information

FD-4 Trinity Warranty Document 

Please refer to the official manufacturer warranty document for coverage details, terms, exclusions, and claim procedures. The Harvia Vega Compact heater is listed with a two-year consumer-use warranty in the supplied specifications; confirm the warranty coverage for the complete sauna system with the manufacturer.