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Finnmark  |  SKU: FD-KN004

Finnmark FD-4 Trinity 3-IN-ONE 2-Person Infrared & Steam Sauna with Traditional Heater

Regular price $10,500.00
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Call or Text us: (888) 833-2305

Financing Options

We currently offer financing options through ShopPay.

Shipping & Returns

Shipping Details for This Product

This handcrafted sauna sanctuary requires special appointment delivery due to its weight and packaging. It will be shipped on a wooden pallet with curbside delivery only, where the driver will lower the items to ground level. After order confirmation, we’ll send you a text to discuss any delivery challenges that could affect costs. Our goal is to ensure a smooth delivery process.

Shipping Rate for This Product

  • Freight Cost: Free shipping to the contiguous United States. Note: Remote or complex delivery areas may not qualify for this rate.
  • Freight Quote for Other Areas: Contact sales@thesaunarepublic.com for details.

Order Confirmation and Shipping Timeline

Upon placing your order, you’ll receive a confirmation email verifying we’ve received it and pre-authorized your credit card. We’ll contact our suppliers to confirm stock availability. If in stock, the item will ship within 5 business days, and tracking information will be sent within 24 hours of shipment to the email provided. If the item is unavailable or on backorder, we’ll cancel the pre-authorization and notify you via email. For inquiries, contact support@thesaunarepublic.com or call (888) 833-2305.

Cancellations (Before Shipment)

You may cancel your order free of charge before it ships, except for custom or made-to-order products. Contact us at (888) 833-2305, via live chat, or email support@thesaunarepublic.com. Custom or made-to-order products cannot be canceled or refunded, as they are built specifically for you upon ordering. If unsure whether your order is custom or made-to-order, please reach out. All sales are final for custom and made-to-order products.

Returns and Refunds

Returns are accepted only if the shipment is damaged or the product is faulty. Contact support@thesaunarepublic.com to obtain a Return Merchandise Authorization (RMA) number. Securely package the item in its original packaging and include the RMA number, proof of purchase, and photos/documentation of the damage or fault. Due to rising LTL/freight costs, returns may incur a 25% cancellation fee plus return shipping costs, depending on the manufacturer. If replacing the product, we may offset some costs based on the item.

Refunds are processed within 5 business days after the product is returned to the warehouse and inspected. We reserve the right to withhold refunds or cancel payments until the goods are received, inspected, and deemed damaged or faulty.

Damaged or Faulty Shipments

Inspect your item’s packaging and product upon arrival. If damaged or faulty, contact support@thesaunarepublic.com to initiate a return and obtain an RMA number. Include the RMA number, proof of purchase, and photos/documentation of the damage or fault with your return.

Shipping Restrictions

This product ships only to the lower 48 United States.

Shipping & Delivery Estimates

We are committed to delivering your sauna and accessories as quickly as possible. Our goal is to provide a seamless, "white-glove" experience from the moment you place your order to the day your sauna arrives.

While we strive for timeliness, please be aware that these estimates may be subject to change due to unforeseen industry-wide factors, such as:

  • Manufacturing and supply chain delays
  • Increased demand on freight and logistics networks
  • Changing schedules with local delivery terminals

We understand that you're excited to receive your order, and we share that excitement. Rest assured, we are actively tracking your shipment and will notify you of any significant updates. We appreciate your patience and thank you for choosing The Sauna Republic for your wellness journey.

For any questions about your order, please contact our support team at support@thesaunarepublic.com.

Manuals & Warranty

Features

Finnmark FD-4 Trinity 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 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 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.

Harvia Vega Compact 1900

  • Wall-mounted design
  • Stainless Steel construction
  • 1.9kW
  • For sauna rooms from 70 to 106 cu. ft.
  • Requires a minimum of 29 lbs of sauna 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
  • Ergonomic operating switches
  • Switches can be installed on the right or left side of the heater
  • Designed, engineered, and made in Finland
  • Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm)
  • 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.

What's Included?

Finnmark FD-4 Trinity Package Contents

  • 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).
  • 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

Specifications

Finnmark FD-4 Trinity Specifications

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

Shipping Dimensions: 80"W x 40"D x 58"H

Shipping Weight: 618 lbs

Harvia Vega Compact 1900 Specifications

Model: Vega Compact 1900

Kilowatt Rating (kW): 1.9kW

Primary Fuel: Electric

Minimum Adjusted Cubic Feet: 70

Maximum Adjusted Cubic Feet: 106

Voltage: 120V

Phase: 1PH

Nominal Amps: 15.9 Amps

Heater Weight: 15.4 lbs

Shipping Weight with Sauna Stones: 59.4 lbs

Width In Inches: 11" (279mm)

Depth In Inches: 11" (279mm)

Height In Inches: 21" (533mm)

Description

About Finnmark FD-4 Trinity

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.

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 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.

Traditional Sauna Heater Included.

Authorized Dealer You Can Trust

As an authorized dealer for top wellness brands, we're here to guide you before and after your purchase. Enjoy 0% APR financing, HSA/FSA payments, and exclusive military & first responder discounts.

Hassle-Free Returns

We want you to be completely satisfied. Our experts provide free installation guidance and answer all your questions before you buy — so you get exactly what you need the first time.

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Free & Fast Shipping

Enjoy free shipping to the contiguous US on all orders. We ship direct from the manufacturer, so your order arrives fast and in perfect condition.

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USA-Based Lifetime Support

All products include the full manufacturer's warranty plus lifetime customer support from our US-based team. We're here when you need us — today and for years to come.

Premium Sauna Collection

We're here for you every step of the way

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Free & Fast Shipping
🚚 Free fast shipping to contiguous US
Expensive shipping fees
HSA/FSA Accepted
💰 Pay with HSA/FSA & save ~30%
No HSA/FSA option
Installation Assistance
🔧 Free installation guidance included
No installation support
Authorized Dealer Status
Top-rated authorized dealer
Unauthorized reseller
0% APR Financing
💳 0% APR financing available
No financing options
USA-Based Lifetime Support
☎️ USA-based lifetime customer support
Limited overseas support