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Finnmark Designs FD-5 Trinity XL Infrared & Steam Sauna

Original price $8,995.00 - Original price $8,995.00
Original price
$8,995.00
$8,995.00 - $8,995.00
Current Price $8,995.00
+ FREE SHIPPING
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Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo – 4-Person Home Sauna

The Ultimate 3-in-1 Sauna for Maximum Wellness

Why settle for just one type of sauna when you can have all three? The Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo is the largest and most advanced home sauna available, offering infrared therapy, a Finnish steam sauna, and medical-grade red light therapy—all in one beautifully crafted unit.

Whether you want the deep-penetrating detox of infrared, the intense heat and steam of a traditional sauna, or the skin-rejuvenating benefits of red light therapy, this sauna delivers it all.

Designed for up to four people, the Trinity XL is engineered for performance and luxury, with Finnmark’s UL-listed Spectrum Plus™ infrared heaters, a powerful Harvia KIP 4.5kW traditional sauna heater, and medical-grade Spectrum Red Light™ Therapy.

Built with premium Western Canadian cedar and Thermal Plus™ Aspen, this sauna is naturally antimicrobial, warp-resistant, and designed to last a lifetime.

FD-5 Trinity XL Infra-Steam Sauna

Finnmark Designs FD-5 Features

  • 3-in-1 Infrared, Steam & Red Light Therapy: The only sauna to combine UL-listed Spectrum Plus™ infrared heaters, a powerful Finnish steam sauna heater, and medical-grade red light therapy for a complete wellness experience.
  • Harvia KIP 4.5kW Traditional Sauna Heater: Enjoy an authentic Finnish sauna experience—splash water on the sauna stones for an intense burst of therapeutic steam.
  • Spectrum Plus™ UL-Listed Infrared Heaters: Short-wave infrared heat penetrates 25x deeper than standard carbon panels, helping to detox at the cellular level.
  • Medical-Grade Spectrum Red Light™ Therapy: A 192-diode LED panel delivers 650nm red light therapy, which stimulates collagen production, promotes faster muscle recovery, and enhances circulation.
  • Western Canadian Cedar Interior: Naturally antimicrobial, resisting mold, bacteria, and fungus to keep your sauna fresh.
  • Thermal Plus™ Aspen Exterior: Warp-resistant and built to last, ensuring long-term durability without rot, warping, or decay.
  • 8mm Tempered Glass & Two-Tier Bench System: Designed for optimal heat retention, with an extra-large, ergonomic seating area for maximum comfort.
  • Low EMF, NASA-Tested Heaters: Ensures safe and effective infrared therapy with minimal electromagnetic field exposure.
  • V2 LCD Touchscreen & Bluetooth Audio: Easily adjust temperature, lighting, and music via a 5” touchscreen controller with marine-grade HiFi speakers.

FD-5 Trinity XL Infra-Steam Sauna Specifications

  • Exterior Material: Thermo-Aspen
  • Interior Material: Western Canadian Cedar
  • Electrical Requirements: 240V / 2700W (Infrared) + 4.5kW (Traditional) / 18.8A / NEMA 6-15 plug
  • Maximum Temperature: Infrared: 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.
  • Glass Thickness: 8mm with Gasket
  • Product Weight: 575 lbs
  • Shipping Weight: 654 lbs (including pallet)
  • Warranty: Covered by the manufacturer’s limited warranty

Harvia KIP 4.5kW Sauna Heater Specifications

  • Material: Stainless Steel
  • Power: 4.5kW
  • Voltage: 240V / 18.8 Amps
  • Room Capacity: 100-210 cu. ft.
  • Dimensions: 16” W x 11” D x 24” H
  • Weight: 40 lbs (with stones: 84 lbs)
  • Controls: Built-in, ergonomic operating switches
Trinity XL 3-IN-ONE Combination Sauna

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The Finnmark FD-5 Trinity XL Infrared & Steam Sauna is the ultimate home sauna for relaxation, detox, and recovery.

Order Processing: Once you place your order, you'll receive an order confirmation email. Please allow 1-3 business days for processing. If there are any unexpected delays, we’ll reach out to you immediately.

Shipping Methods:

  • Freight Shipping: Saunas ship in large, crated packages and will be delivered via freight. The carrier will schedule a delivery appointment when the shipment is in your area.
  • Ground Shipping: Sauna accessories, heaters, & components ship in standard FedEx or UPS packages.

Delivery Timeline:

  • Delivery Timeline:

    • Processing: Please allow 1-3 business days for us to process your order.
    • Handling Time: This product should ship out in 2 weeks days from the time it is processed.
    • Transit Time: Once shipped, we will send you the tracking number. Freight shipments typically take 3-10 business days, depending on your location.
    • Delivery Appointment: The carrier will contact you to set a delivery time. Someone must be present to receive the delivery.

    Receiving Your Shipment: Inspect your shipment for damage before signing the delivery receipt. For any issues, mark “DAMAGED, NEEDS REVIEW,” take photos, and contact us within 2-3 business days.

Installation & Setup:

Saunas are typically very simple to put together. Some are as easy as clamping the 4 walls together.

Electrical Requirements:

  • Most infrared saunas **plug into a standard 120V home outlet**.
  • Traditional saunas may require a **240V hardwired connection**, which should be installed by a licensed electrician.

Professional Installation: If you require assistance with setup, we can refer you to our preferred installation partners.

Space Considerations: Ensure proper ventilation and clearance before installation. Saunas should be placed on a **level, dry surface** away from moisture-sensitive materials.

Contact Us: To connect with an installer in your area or get a price quote, please call us at 888-995-4450 or email us at info@selectfitnessusa.com.

Sauna Warranty Coverage:

Select Fitness is an authorized dealer for every sauna we sell. All saunas include the manufacturer's original warranty.

Typical warranty coverage includes:

  • Heating Elements & Electronics: Covered for years.
  • Wood Panels & Structure: Covered against defects but does not include natural expansion or contraction of wood.
  • Control Panel & Internal Components: -year warranty.

For specifics on your sauna’s warranty, check the product details or contact us for more information.

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Sauna FAQs

General Questions
What’s the difference between an infrared sauna, a traditional sauna, and a hybrid sauna? +
Infrared saunas: Heat your body directly with infrared light for deep tissue penetration. Lower temperatures (120–150°F) make it easier to stay in longer. Known for relaxation, recovery, and potential wellness benefits.

Traditional saunas: Heat the air with electric heaters or wood-burning stoves. Higher temperatures (160–195°F) provide an intense, sweat-heavy experience, boosting circulation and overall wellness. Zero EMF output.

Hybrid saunas: Offer the benefits of both. They use infrared waves for deeper tissue penetration alongside much higher heats from a traditional sauna stove.
How do I choose the right sauna for me? +
Consider:
Person Capacity: How many people will use the sauna? A larger capacity sauna provides more space but takes up more room.
Indoor vs. Outdoor Use: Indoor saunas cannot be safely used outdoors. Choose the right option for your space.
Heating Style: Infrared, Traditional, or Hybrid.
Full Spectrum vs. Standard Infrared: Full Spectrum saunas provide near, mid, and far infrared. This is a desirable but generally more expensive feature.
EMF Levels: Low (<6–10 MG), Ultra Low (<3–5 MG), or Near Zero (<2 MG). Lower EMF is generally better, but more expensive.
What size saunas do you offer? +
We carry 1-person, 2-person, and up to 6-person+ models. Consider both interior comfort and available space when selecting a size.
Shipping & Delivery
How is my sauna shipped? +
Saunas ship via freight in large, crated boxes. A delivery appointment will be scheduled before arrival.
How much does shipping cost? +
We cover the shipping charge on all saunas. The price you see online includes FREE shipping!
Installation & Setup
Do saunas require professional installation? +
Infrared saunas: No, most models are plug-and-play and can be assembled in 1-2 hours.
Traditional saunas: Most are simple to set up but may require hardwiring by a licensed electrician.
What are the electrical requirements? +
1-2 person infrared saunas: Standard 120V outlet (some exclusions apply—check product details).
Larger infrared saunas & traditional saunas: Many will require a dedicated 240V wiring (professional installation highly recommended).
How long does it take to assemble a sauna? +
Most saunas take 30 minutes to 3 hours with two people and come with easy-to-follow instructions.
Usage & Maintenance
How long does it take to heat up? +
Infrared saunas: 10-15 minutes on average but depends on the model and number of heaters.
Traditional saunas: 30-45 minutes on average but depends on the model and number of heaters.
How do I clean my sauna? +
Wipe down with a damp cloth after each use.
For deep cleaning, use a vinegar-water mix—avoid harsh chemicals.
Specialty wood cleaner and treatment is advisable.
What type of wood is best for a sauna? +
Canadian Hemlock: Durable, affordable, and commonly used in infrared saunas.
Red Cedar: Premium, naturally rot-resistant, aromatic, and highly durable.
Basswood, Mahogany, and Fir: Alternative high-quality woods with varying aesthetics and insulation properties.
Warranty & Support
What is the warranty on my sauna? +
Every sauna includes a manufacturer’s warranty covering everything from the wood to the heaters and more. For specific warranty information, check the product details.
What if my sauna arrives damaged? +
Inspect your sauna upon delivery and note any damage before signing the receipt.
Contact us within 48 hours to start a claim.
Your sauna will be either serviced or replaced.
Who do I contact for warranty support? +
Contact info@selectfitnessusa.com or call 888-995-4450.
Ultimate Sauna Buying Guide

Ultimate Sauna Buying Guide

Not sure about which sauna you need? Still learning about all the information you need to know before choosing? Checkout out our expert guide on choosing, and buying a sauna! We break down every part of info you need, and guide you to the right sauna.

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“From the first consultation to delivery, Select Fitness made buying my sauna a seamless experience. The team answered all my questions, and now I get to enjoy the best part of my day—relaxing in my new infrared sauna.”

- Jordan W., 02/25
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