
Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo
Overview
The Trinity Combination Sauna is the only sauna available that combines Finnmark’s UL listed Spectrum Plus infrared heaters combined with a traditional sauna heater that uses vulcanite sauna stones to radiate and even heat and allow you to splash a ladle of water onto the rocks for steam. True medical grade Spectrum Red Light™ Therapy rounds out this multi-dimensional home wellness system.
Don’t compromise! Finnmark’s FD-5 Trinity is the only combination sauna with true UL listed infrared heater panels together with a traditional sauna heater. Furthermore, the IR panels, red light therapy. Get all the benefits of infrared combined with traditional rocks with steam.
Key Features
- Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters.
- Spectrum Red Light™ Therapy. 192 Diode medical grade LED panel capable of producing highly beneficial 650nm of red light therapy combined with chromotherapy for those days you need a little love.
- Antimicrobial Western Canadian cedar interior that protects against mold, bacteria and fungus.
- Thermal Plus™ Aspen exterior that will never rot, warp, decay or chip. Making FinnMark Designs full spectrum infrared saunas one of the healthiest and longest lasting saunas on the market.
- 3-IN-ONE Combination. Compromise no more. Introducing the only combination sauna with true UL listed infrared heaters combined with a traditional heater that produces high heat steam. Get all the benefits of infrared combined with traditional rocks with steam all while soaking in the benefits of a medical grade Red light therapy LED panel.
- Built-in LCD Wi-Fi touchscreen controller with bluetooth audio.
- Audio with 6" Hi-Fi speakers, 8mm tempered glass for the ultimate thermal retention.
- Extra large two-tier bench system.
- Low EMF sauna tested by a NASA award winning testing facility.
- High Emissivity infrared heaters.
- Wall-mounted
- Stainless steel construction
- 4.5kW
- For sauna rooms from 100 to 210 cu. ft.
- Requires a minimum of 50 lbs of stones (1 box-AC3000) 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).
- Built-In controls
- Available in 240V/1PH operation or 208V/3Ph operation
- Industrial grade, serviceable heating elements
- Exceptionally large rock capacity
- UL listed
- Direct rock-to-heating element contact
- Designed, engineered, and made in Finland
- Dimensions: 16"W (406mm) x 11"D (279mm) x 24"H (609mm)
- 2-Year Warranty (Consumer Use) Manufacturer's Note: Sauna heater stones are significant to the unit's safety. In order for the warranty to remain valid, the user is responsible for proper maintenance.
Weatherproof Cover made for this model · confirmed fit
Bench Cushion sized for this model · confirmed fit

The Trinity Series
Two complete saunas in one cabin.
Trinity pairs full-spectrum infrared panels with a genuine traditional rock heater, so you can choose dry radiant heat or humid löyly steam whenever the mood strikes. UL-listed Spectrum Plus™ infrared, an antimicrobial cedar interior and a Thermal Plus™ Aspen exterior deliver the best of both rituals without compromise.

INFRARED + TRADITIONAL
Infrared, steam and red light — for four
The Trinity XL gives up to four people full-spectrum infrared, a traditional heater for real löyly, and integrated red-light therapy in one elegant cabin.

A LOOK INSIDE
The XL interior
Bench layout and heater placement for the four-person Trinity XL, shown true to scale.
Every Detail
Specifications & Details
Full Specifications
Model: FD-5
External Materials: Thermo-Aspen
Interior Materials: Western Canadian Cedar
Volts: 240
IR Watts: 2700
Amperage: 15 | TBD
Plug Type: NEMA 6-15
Maximum Temperature: IR 170° F | Traditional 190° F
Interior Dimensions: 71"W x 57.5"D x 75.5"H
Exterior Dimensions: 75"W x 64"D x 83"H
Room Volume: 130 cu. ft.
Door Dimensions: 23.625"W x 68.875"H
Door Handle Dimensions: 1.5"W x 13.25"H
Glass Thickness: 8mm W/Gasket
Product Weight: 575 lbs
Shipping Dimensions: 80"W x 40"D x 83"H
Shipping Weight: 840 lbs
Model: KIP45B
Kilowatt Rating: 4.5kW
Primary Fuel: Electric
Minimum Adjusted Cubic Feet: 100
Maximum Adjusted Cubic Feet: 210
Voltage: 240V
Phase: 1PH
Amperage: 18.8 Amps
Heater Weight: 40 lbs
Shipping Weight with Sauna Stones: 84 lbs
Width In Inches: 16" (406mm)
Depth In Inches: 11" (279mm)
Height In Inches: 24" (609mm)
Specifications subject to change. Please contact us to verify current specifications before purchase.
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 KIP Series B 4.5kW Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm Sauna Stones (44 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).
- Spectrum LED Near Infrared Ceiling Lights Combined with Medical-Grade Spectrum Red Light Therapy
- Controller 2.0, Built-In LCD Wi-Fi Touchscreen Control Panel with Bluetooth Audio
- ETL Certification
- Limited Warranty
Health Benefits
- The technology of the Spectrum Plus incoloy heaters warms your core body temperature, producing a cleaner, healthier sweat while lowering blood pressure, and maintaining heart health.
- The natural heat produced by the Spectrum Plus heaters is designed to achieve a more controlled hot climate much like a traditional sauna without the unbearable heat temperatures. This deeper penetration through sweating goes beyond the muscle and fat rather than a traditional or hot air sauna. As a result, you're able to work up the best possible sweat in the least amount of time.
- Spectrum Plus heaters remove 17% more toxins such as cholesterol, fat-soluble toxins, toxic heavy metals, sulfuric acid, sodium, ammonia and uric acid.
- Full Spectrum Sauna combination of long-wave Spectrum Carbon 360 infrared panels with UL-listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and better experience than any other sauna.
- Reap the benefits of a more natural pain relief remedy with every infrared sauna session.
- Athletes can appreciate a faster muscle recovery with increased blood flow to the muscles, delivering more concentrated oxygen and creating more energy to heal.
Shipping & Warranty
Shipping: Ships free via freight carrier (curbside lift-gate) to the contiguous United States.
Warranty: Covered by Finnmark Design's manufacturer warranty on parts and workmanship. Contact Sauna Co. for complete shipping and warranty terms before purchase.
Resources
Documents & Manuals
Trinity Installation & User Manual
Warranty
to a friend
A larger dual-system cabin needs room and a little setup planning — support guided us. The result is a do-everything sauna we love. Shipped carefully.
The FD-5 gives us the dual infrared-and-steam flexibility in a larger cabin that seats the family. Gentle radiant heat or full steam, our choice each evening. Sauna Co. walked us through both systems and coordinated the bigger delivery smoothly.
The XL size means everyone fits, and switching between infrared and steam suits every mood. Beautifully built. Delivery was prompt and well-crated. Communication was excellent.
