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guaranteed Lowest pricing | free shipping on all orders | No sales tax outside of Ohio

guaranteed Lowest pricing | free shipping on all orders | No sales tax outside of Ohio

Finnmark FD-4 Trinity Infrared & Steam Sauna Combo: A wooden cabinet with a glass door, featuring an advanced sauna system with infrared and traditional heaters.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo with wooden exterior, open door, and blue light inside.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo: Wooden sauna cabinet featuring red light therapy and infrared heaters, designed for two-person wellness sessions.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo with white door, wood construction, combining infrared heaters, traditional sauna, and red light therapy.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo showcasing a wooden cabinet with advanced heating elements and built-in red light therapy.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo in a bathroom setting with wooden cabinet, shelving, and bathtub visible.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo with built-in TV in a wooden sauna cabin. Features dual heaters and medical-grade red light therapy.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo featuring black knobs, control panel, and traditional sauna heater.
Finnmark FD-4 Trinity Infrared & Steam Sauna Combo featuring advanced infrared heaters and traditional steam capabilities, shown in an elegant indoor setting.
Drawing of the Finnmark FD-4 Trinity Infrared & Steam Sauna Combo, featuring a sauna door with handle and interior design elements.

Finnmark FD-4 Trinity Infrared & Steam Sauna Combo

SKU   |   FD-KN004
Regular Price
$7,795.00
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$7,795.00
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PRODUCT INFO


Finnmark FD-4, 2-Person Home Sauna with Infrared & Traditional Heater


Enjoy the benefits of Infrared Sauna Bathing at 170-degrees Fahrenheit combined with a true Finnish sauna! Welcome to the ultimate sauna experience. With the Trinity 3-IN-ONE, you will expand your wellness in a way like never before. This sauna combines all the benefits ofFinnmarks UL listed Spectrum Plus infrared heaters,traditional 120V sauna heater, and true medical grade Spectrum Red Light Therapy all in one beautiful sauna cabin. This culmination of the perfect sauna experience will remind you that less is not always more. Why settle when you can experience it all? Give yourself the gift of self-care and wellness with Finnmark Design's Trinity 3-IN-ONE. Traditional Sauna Heater Included

The Trinity Combination Sauna is the only sauna available that combines Finnmark’s UL listed Spectrum Plus infrared heaters combined with a traditional 120V sauna heater, plus true medical grade Spectrum Red Light™ Therapy.

No need to compromise. Finnmark’s FD-4 Trinity is the only combination sauna with true UL listed infrared heaters together with a traditional sauna heater. Furthermore, the IR panels, red light therapy, and the traditional sauna heater are all powered by a standard 120V and can be plugged into a common outlet, so no electrician is needed. Get all the benefits of infrared combined with traditional rocks with steam.

Get hot fast! The only IR heaters that have passed the rigorous tests from Underwriter Laboratories used in tandem with a traditional steam sauna stove. Short wave far-infrared penetrates muscles, joints, and makes you sweat 25 times more than carbon panel heaters.


The traditional Harvia Vega Compact 1900 1.9kW sauna heater lets you splash water onto the rocks for an authentic steam sauna experience. Enjoy the benefits and the intensity only offered by a steam sauna.

Red light therapy is a type of phototherapy that uses low-level light wavelengths to penetrate the skin and stimulate the production of collagen and other proteins, which can lead to numerous potential health benefits. It’s a perfect enhancement to your sauna wellness ritual.


  • 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 Design's 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 touchscreen controller with Bluetooth audio.
  • Audio with 6" HiFi marine grade 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
Model FD-4
External Materials Thermo-Aspen
Interior Materials Western Red Cedar
Volts 120
IR Watts 1750
Amperage 15/20
Plug Type NEMA 5-15P
Outlet Standard 120v 15a
Maximum Temperature IR 170F - Traditional 190F
Interior Dimensions 44.25"W x 45.5"D x 75.5"H
Exterior Dimensions 48"W x 48"D x 83"H
Room Volume 86 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 437 lbs

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