Finnmark FD-4 Trinity Infrared & Steam Sauna Combo 2-Person Home Sauna
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The Finnmark FD-4 Trinity Combination Sauna delivers a premium 3-in-1 home wellness experience in a compact footprint—combining UL-listed Spectrum Plus™ infrared heat, a Harvia Vega Compact 1900 (1.9 kW) traditional heater for true steam sessions, and medical-grade Spectrum Red Light™ therapy. Built with an antimicrobial Western Canadian Cedar interior, a durable Thermal Plus™ Aspen exterior, tempered glass, Bluetooth audio, and Wi-Fi touchscreen control, the FD-4 is ideal for users who want infrared, steam, and red light therapy in one unit.
Key Features
- 3-in-1 System: Full-spectrum infrared + traditional steam (Harvia Vega Compact 1900, 1.9 kW) + medical-grade red light therapy.
- UL-Listed Spectrum Plus™ Infrared: Short-wave panels for fast, deep, efficient warmth (low EMF).
- Spectrum Red Light™ Panel: 192 medical-grade LEDs at 650 nm for targeted light therapy.
- Premium Craftsmanship: Antimicrobial Western Canadian Cedar interior and Thermal Plus™ Aspen exterior.
- Smart Controls: LCD Wi-Fi touchscreen with Bluetooth audio and chromotherapy lighting.
- Comfort: Two-tier benching with ergonomic seating; 8 mm tempered thermal glass door.
- Certified Low EMF: Independently tested; UL / ETL safety listings.
Specifications
| Model | Finnmark FD-4 Trinity Combination Sauna |
| System Type | Infrared + Traditional Steam + Red Light Therapy (3-in-1) |
| Interior Material | Western Canadian Cedar (antimicrobial) |
| Exterior Material | Thermal Plus™ Aspen |
| Infrared Heaters | UL-listed Spectrum Plus™ (low EMF short-wave) |
| Traditional Heater | Harvia Vega Compact 1900, 1.9 kW (stone capacity) |
| Red Light Therapy | 192-diode LED panel, 650 nm wavelength |
| Controls & Audio | LCD Wi-Fi touchscreen; Bluetooth Hi-Fi speakers |
| Lighting | LED with chromotherapy functionality |
| Door/Glass | 8 mm tempered thermal glass door/panels |
| Certifications | UL / ETL listed; Low-EMF tested |
| Consumer Warranty | 2-Year Manufacturer Warranty |
Electrical Requirements
| Traditional Heater Circuit | Harvia Vega Compact 1900, 1.9 kW — verify voltage (120–240 V) and breaker size per the installation manual & local code; dedicated circuit required. |
| Infrared/Controls Circuit | Typically a dedicated 120 V circuit for IR panels/controls/lighting (refer to manual for your configuration). Licensed electrician recommended. |
What’s Included
- Pre-assembled wall & ceiling panels
- Spectrum Plus™ infrared heater panels
- Spectrum Red Light™ therapy panel (192 diodes)
- Harvia Vega Compact 1900 traditional heater (1.9 kW)
- 1 box Harvia AC3000 sauna stones (≈29 lbs)
- 8 mm tempered glass door with handle/hinges
- LCD Wi-Fi touchscreen controller with Bluetooth audio
- LED ceiling lights with chromotherapy
- Power supply unit, heater & floor cables, screws
- Interior heater guards & door hardware
Delivery Options
- Insured LTL Freight: Carrier schedules a delivery window. Ships as ready-to-assemble, labeled panels.
- Note: White Glove Delivery/Installation is not available for this product (see notice above).
Warranty Coverage
- Consumer Warranty: 2 years (manufacturer)
- Coverage applies to the original purchaser; see full terms for details.
What Makes This Different
Combines infrared, steam (Harvia 1.9 kW), and red light therapy—rare at this size and price point.
Compact footprint with two-tier benches and 8 mm tempered glass maintains an open, premium feel.
Wi-Fi touchscreen, Bluetooth Hi-Fi, and chromotherapy lighting for personalized sessions.
Compare at a Glance
| Feature | FD-4 Trinity (This Page) | FD-5 Trinity | FD-3 Infrared |
|---|---|---|---|
| Modalities | Infrared + Steam + Red Light | Infrared + Steam + Red Light | Infrared + Red Light |
| Traditional Heater | Harvia Vega Compact 1.9 kW | Harvia KIP 4.5 kW | — |
| Infrared System | Spectrum Plus™ (UL-listed) | Spectrum Plus™ (UL-listed) | Hybrid: Spectrum Plus™ + Carbon 360° |
| Red Light Panel | 192 diodes @ 650 nm | 192 diodes @ 650 nm | Integrated ceiling LEDs |
| Controls/Audio | Wi-Fi touchscreen; Bluetooth Hi-Fi | Wi-Fi touchscreen; Bluetooth Hi-Fi | Wi-Fi touchscreen; Bluetooth Hi-Fi |
Specs reflect current model pages; verify details on each product page.
Site Prep & Installation
- Electrical: Use dedicated circuits for the Harvia 1.9 kW heater and for the IR/control system. Follow the installation manual and local code; use a licensed electrician.
- Foundation: Solid, level indoor surface (tile, vinyl, sealed wood, or low-pile carpet).
- Access: Ensure doorway/path clearance; two-person assembly recommended.
- Ventilation: Standard room ventilation is sufficient; keep away from direct water sources.
Estimated Running Costs
Actual costs vary by climate, usage, and local electricity rates.
| Mode | Typical Range | Notes |
|---|---|---|
| Infrared Sessions | ≈ $0.10–$0.40/day | 10–15 min preheat; 25–40 min sessions, 3–5×/week |
| Traditional Steam | ≈ $0.20–$0.60/day | 1.9 kW heater; depends on setpoint and session time |
| Consumables | Minimal | Water for löyly; wipe benches/glass after use |
Shipping & Delivery
- Insured LTL freight with a scheduled delivery window.
- Typical freight transit after processing: 7–14 business days (location dependent).
- Ships as labeled, ready-to-assemble panels for two-person installation.
Tight access or stairs? Contact us before checkout.
FAQs
What makes FD-4 different from FD-5?
Do I need plumbing for steam?
Is EMF low with the infrared panels?
Why Buy From Us
FAQs
Shipping & Delivery
Free curbside shipping on all orders. White-glove delivery/setup available at checkout in most areas. We’ll confirm your preferred date after purchase.
Warranty
Full manufacturer warranty, registered at purchase. Need help with a claim? Our U.S. support team handles it directly with the brand.
Returns
New, uninstalled items can be returned within the brand’s policy window. We’ll help coordinate pickup and any restocking requirements.
Installation & Power
Most saunas/hot tubs require dedicated circuits. We provide spec sheets and can recommend licensed installers in your area.
