
Product Information
The Finnmark FD-4 Trinity Infrared & Steam Sauna Combo is a two-person sauna that merges infrared and
steam heating technologies. It features UL-listed Spectrum Plus™ infrared heaters and a traditional
1.9kW sauna heater, allowing users to choose between or combine heating methods.
The sauna also includes a medical-grade LED panel for red light therapy, enhancing the wellness
experience.



Product Features
The FD-4 Trinity offers a comprehensive sauna experience by integrating multiple therapeutic modalities.
Its hybrid heating system provides flexibility, while the red light therapy panel supports skin health
and muscle recovery.

Finnmark FD-4 Trinity Infrared & Steam Sauna Combo
Premium Construction:
Interior made from antimicrobial Western Canadian cedar; exterior crafted from Thermal Plus™ Aspen,
ensuring durability and resistance to decay.
User-Friendly Interface:
Features an LCD touchscreen controller with Bluetooth audio system and 6" HiFi marine-grade speakers for
easy operation and entertainment.
Compact Design:
Designed for two persons, with exterior dimensions of 48"W x 48"D x 83"H, fitting comfortably in various
spaces.
Efficient Heating:
Infrared heaters operate at 1750 watts on 120V, while the traditional heater operates at 1.9kW on 120V,
providing quick and effective heating.
Safety Features:
Low EMF emissions tested by a NASA award-winning facility, ensuring a safe sauna experience.
Additional Features
The FD-4 Trinity delivers a versatile sauna experience with its integration of multiple therapeutic options. Its hybrid heating system offers customizable comfort, while the red light therapy panel promotes skin health and aids muscle recovery. This advanced design ensures a rejuvenating and effective wellness solution for users seeking both relaxation and therapeutic benefits.

Energy Efficiency
Designed to operate efficiently, reducing energy consumption while maintaining optimal performance.

Quick Heating
Heats up rapidly, allowing users to enjoy their sauna sessions without long waiting periods.

Low EMF Emissions
Engineered to emit low electromagnetic fields, ensuring a safer and healthier environment.

Easy Assembly
Comes with clear instructions and pre-fabricated panels, making the assembly process straightforward.
What’s Included?
- Bottom Panel
- Top Panel
- Back Panel
- Front Panel
- Left Panel
- Right Panel
- Glass Door
- Bench Support
- Bench Top
- Heater Cable
- Floor Cable
- Screws
- Power Supply Unit
- Power Cable
- Interior Heater Connections with Wood Cover
- Door Handle (2 Screws)
- Infrared Sauna Heater Panels
- Harvia Vega Compact 1900 Sauna Heater
-
1 Box of the Harvia AC3000 0-10cm sauna stones (29 lbs)
Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply). - Medical Grade LED Red Light Therapy with 650nm plus color chromotherapy
- V2 LCD Controller 5" Touchscreen with Bluetooth
- ETL Certification
- Limited Warranty

About Finnmark
Finnmark Designs began 45 years ago in Tampere, Finland, crafting custom Finnish saunas inspired by the historic Rajaportti Sauna. Introducing one of the first modular saunas to the US in 1997, Finnmark redefined sauna innovation. In 2019, it launched the Hybrid sauna, later followed by the 3-IN-ONE sauna in 2022, blending infrared, steam, and red light therapy.


Professional Sauna Installation Concierge Service
We want to make your sauna experience as seamless and enjoyable as possible! To ensure a hassle-free setup, we help you find professional installation through our concierge service, connecting you with trusted providers to get your sauna up and running with ease.
Need assistance with installation?
We’ve got you covered! Our team can guide you through the process or connect you with a trusted local
service provider for a smooth and stress-free setup.
Looking for a professional touch?
For an additional fee, our goal is to connect you with the right service providers, making the process
as smooth and hassle-free as possible, so you can relax and enjoy your sauna without any worries.

Why Choose Us?
Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
Specifications
Model | FD-4 |
Capacity | 2 Persons |
Exterior Dimensions | 48" W x 48" D x 83" H |
Interior Dimensions | 44" W x 45" D x 75" H |
Interior Material | Western Red Cedar |
Exterior Material | Thermal Plus™ Aspen |
Infrared Heater Power | 1750 Watts |
Traditional Heater Power | 1.9 kW |
Infrared Heater Voltage | 120V / 15A |
Traditional Heater Voltage | 120V / 20A |
Maximum Temperature (Infrared) | 170°F |
Maximum Temperature (Traditional) | 190°F |
Control Panel | V2 LCD 5" Touchscreen with Bluetooth |
Audio System | Built-in Bluetooth with 6" HiFi Marine-Grade Speakers |
Lighting | Medical Grade LED Red Light Therapy with 650nm plus Color Chromotherapy |
Door | 8mm Tempered Glass |
Weight | Approximately 437 lbs |
Warranty & Returns
Return Policy
To request a return or refund, customers can use our contact form, email info@peakprimalwellness.com, or phone – (877) 689-4898 . Once the product is inspected and confirmed to be in brand new condition, we will initiate the refund, which typically takes 5–7 business days to post back to the original payment method. Refunds can be applied via the customer’s preferred method, including card or bank transfer. Shipping instructions and the return address will be provided upon contacting customer service. Please include photos if the product arrives damaged. Click here to view our complete return policy for more details.
Shipping Policy
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
Frequently Asked Questions
What are the dimensions of the Finnmark FD-4 Trinity Sauna?

The exterior dimensions are 48 inches in width, 48 inches in depth, and 83 inches in height. The interior dimensions are 44 inches wide, 45 inches deep, and 75 inches high.
How many people can the sauna accommodate?

The Finnmark FD-4 Trinity Sauna is designed to comfortably accommodate two individuals.
What type of wood is used in the sauna's construction?

The interior is crafted from antimicrobial Western Canadian cedar, and the exterior is made from Thermal Plus™ Aspen, both chosen for their durability and resistance to decay.
What are the power requirements for the sauna?

The infrared heaters operate at 1750 watts on a standard 120V/15A outlet. The traditional heater requires a 120V/20A circuit.
Does the sauna include any entertainment features?

Yes, it comes equipped with a built-in LCD touchscreen controller and Bluetooth audio system, including 6-inch HiFi marine-grade speakers for an enhanced experience.
What is the maximum temperature the sauna can reach?

The infrared heaters can reach up to 170°F, while the traditional heater can achieve temperatures up to 190°F.
Is assembly required for the sauna?

Yes, the sauna requires assembly. It comes with pre-fabricated panels and detailed instructions to facilitate the process.