Finnmark FD-4 Trinity Hybrid Sauna

The Trinity FD-4 brings two sauna traditions into a single, quietly composed room for two. Full-spectrum infrared warmth and the soft steam of a Harvia stove can be enjoyed on their own or together, all within walls of clear Canadian red cedar. It plugs into an ordinary household outlet, so the ritual can begin almost anywhere in the home.

Two kinds of heat, one ritual

Six Spectrum Plus™ dual-wave emitters wrap the bench in far and mid-infrared warmth: three across the back wall, two on the sides and one tucked beneath the seat. When you want the classic experience, a compact Harvia Vega stove on the front wall adds dry heat and the gentle hiss of löyly.

Used alone, the infrared reaches up to 170°F. Paired with the stove, the cabin climbs to as much as 194°F, so each session can be as mellow or as intense as the evening calls for.

Crafted in cedar and aspen

The interior is lined in clear ‘A’ grade Canadian Western Red Cedar, prized for its warm colour and fragrance. Outside, a Thermal Plus™ Canadian Aspen shell gives the cabin a clean, contemporary presence, and fully insulated walls hold the heat where it belongs.

A two-tier bench lets you choose your level of warmth, sitting higher for intensity or lower for a gentler session.

Light, sound and quiet control

A Spectrum Red Light™ LED panel delivers 650nm red light alongside chromotherapy, adding a restorative layer to every visit. Bluetooth audio, aromatherapy compatibility and a scheduling feature that pre-heats the room before you arrive complete the experience.

Everything is managed from a single LCD touchscreen, keeping the interior uncluttered and calm.

Simple to live with

Both the infrared system and the stove run on 120V power. The infrared circuit uses a standard NEMA 5-15P plug, and the cabin is backed by a 10-year sauna warranty, an unlimited lifetime warranty on the Spectrum Plus™ emitters and a 2-year warranty on the Harvia stove.

Features

• Infrared and traditional heat, usable separately or together
• Six Spectrum Plus™ dual-wave (far and mid) infrared emitters, including one beneath the bench
• Harvia Vega Compact 1.9 kW traditional stove
• Up to 170°F on infrared alone, up to 194°F combined
• Spectrum Red Light™ 650nm LED panel with chromotherapy
• Clear 'A' grade Canadian Western Red Cedar interior, Thermal Plus™ Canadian Aspen exterior
• Two-tier bench with fully insulated walls
• LCD touchscreen with pre-heat scheduling and Bluetooth audio
• Runs on standard 120V household power

What's included

• Spectrum Plus™ infrared heater system (6 emitters)
• Harvia Vega Compact 1.9 kW traditional heater
• Spectrum Red Light™ LED therapy panel
• LCD touchscreen controller
• Two-tier bench system

Specifications