Finnmark FD-4 Trinity Infrared & Steam 2 Person Sauna Combo

Finnmark Designs FD-4 Trinity Combination Sauna

The Finnmark Designs FD-4 Trinity is a versatile home sauna that combines three wellness technologies in one unit: full-spectrum infrared heating, a traditional steam sauna heater, and integrated red-light therapy. Built with premium materials, it offers both durability and comfort for daily use.

Key Features

Multi-Function Heating System

• Infrared Heating: UL-listed Spectrum Plus™ short-wave infrared panels paired with Spectrum Carbon 360° long-wave panels for balanced coverage

• Traditional Sauna Heater: Harvia Vega Compact 1.9kW electric heater with stainless-steel construction, designed for sauna rooms from 70 to 106 cu. ft.

• Red Light Therapy: Integrated Spectrum Red Light™ LED panel with 192 diodes producing 650nm wavelengths

Premium Materials

• Interior: Western Canadian cedar, naturally resistant to mold and bacteria

• Exterior: Thermal Plus™ Aspen, thermally treated to resist warping, rot, and decay

• Glass: 8mm tempered glass for safety and insulation

• Benches: Two-tier seating system designed for comfort and space efficiency

Comfort & Controls

• Built-in LCD Wi-Fi touchscreen controller

• Integrated Bluetooth audio with dual 6" Hi-Fi speakers

• Low EMF tested by an independent facility

• Ergonomic bench design for extended comfort

Harvia Vega Compact 1900 Heater

• Stainless steel construction

• 1.9kW wall-mounted design

• Built-in ergonomic operating switches (right- or left-side installation)

• Includes 29 lbs of natural sauna stones (additional stones recommended for fit and function)

• Designed and manufactured in Finland

Package Includes

• Pre-fabricated wall and roof panels (bottom, top, back, front, left, right)

• Glass door with handle and hinges

• Bench support and bench top (two-tier design)

• Infrared heater panels and cabling

• Harvia Vega Compact 1900 sauna heater

• 1 Box Harvia AC3000 sauna stones (29 lbs)

• Spectrum LED near-infrared ceiling lights with red-light panel

• LCD Wi-Fi touchscreen controller with Bluetooth audio

• Power supply, wiring, and hardware

• Assembly instructions

• ETL certification

• Limited warranty

Dimensions

• Interior: 44.25"W x 45.5"D x 75.5"H

• Exterior: 48"W x 48"D x 83"H