PRE-ORDER FOR AUGUST 2026

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4-Person Home Sauna with Infrared & Traditional Heat 72"W x 48"D x 78"H

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 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.

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 4.5kW sauna heater lets you splash some water onto the rocks for a luxurious steam sauna experience. Reap 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. 

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 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
  Harvia KIP Series 4.5KW Sauna Heater
  
• Wall-mounted
  
• Stainless steel construction
  
• 4.5kW
  
• For sauna rooms from 100 to 210 cu. ft.
  
• Requires a minimum of 50lbs 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). 
    
• Requires wall-mounted time/temperature control
  
• 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.