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Finnmark

Finnmark FD-5 Trinity XL | 4-Person Infrared, Steam & Red Light Sauna

Finnmark FD-5 Trinity XL | 4-Person Infrared, Steam & Red Light Sauna

Regular price $8,995.00 USD
Regular price Sale price $8,995.00 USD
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The Finnmark FD-5 Trinity XL is the only home sauna that combines three complete wellness modalities in one cabin: UL-listed short-wave infrared heating, a traditional 4.5kW steam sauna heater, and medical-grade Spectrum Red Light™ Therapy. No compromises, no choosing between experiences. Just the full spectrum of sauna wellness, in a single beautifully crafted 4-person cabin. Free shipping included.

Three Modalities. One Sauna.

Infrared — Finnmark's UL-listed Spectrum Plus™ short-wave incoloy infrared heaters penetrate deep into muscle and tissue, producing a cleaner, more efficient sweat — up to 25 times more effective than standard carbon panel heaters. Core body temperature rises naturally, improving circulation, lowering blood pressure, and accelerating recovery.

Traditional Steam — The included Harvia KIP Series B 4.5kW sauna heater uses vulcanite stones to radiate even, intense heat. Ladle water onto the rocks for an authentic Finnish steam experience; the löyly that no infrared heater can replicate. Reaches up to 190°F for a full traditional sauna session.

Red Light Therapy — A 192-diode medical-grade Spectrum Red Light™ panel delivers 650nm red light therapy directly into the skin, stimulating collagen production, enhancing cellular recovery, and rounding out the session with chromotherapy for complete mind-body restoration.

Key Features

  • Spectrum Plus™ UL-listed short-wave infrared heaters — deep penetrating heat, up to 25x more effective than carbon panels
  • Harvia KIP 4.5kW traditional steam heater — vulcanite stones, water-tossing, up to 190°F
  • 192-diode Spectrum Red Light™ Therapy panel — 650nm medical-grade red light with chromotherapy
  • Built-in LCD Wi-Fi touchscreen controller with Bluetooth audio
  • 6" Hi-Fi speakers for immersive audio
  • Antimicrobial Western Canadian Cedar interior — naturally resistant to mold, bacteria, and fungus
  • Thermal Plus™ Thermo-Aspen exterior — rot, warp, decay, and chip resistant
  • Extra-large two-tier bench system
  • 8mm tempered glass door for superior thermal retention
  • Low EMF — tested by a NASA award-winning testing facility
  • High emissivity infrared heaters
  • ETL certified
  • 4-person capacity
  • Free shipping to the contiguous United States

Harvia KIP Series B 4.5kW Sauna Heater

The included Harvia KIP Series B is a wall-mounted, UL-listed electric sauna heater designed and made in Finland. Stainless steel construction with industrial-grade serviceable heating elements, direct rock-to-element contact, and an exceptionally large rock capacity for rich, consistent steam.

  • 4.5kW, 240V / 1PH
  • For sauna rooms 100 – 210 cubic feet
  • Minimum 50 lbs of stones required — 1 box of Harvia AC3000 stones included
  • Built-in controls, UL listed
  • 2-year consumer warranty

Note: Each natural stone is unique in shape and size. An additional box of sauna stones is recommended to allow selection of the best fit — additional freight charges might apply if bought separately.

Benefits of Infrared

  • Raises core body temperature for a deeper, cleaner sweat
  • Removes up to 17% more toxins than conventional saunas — including heavy metals, cholesterol, and uric acid
  • Supports lower blood pressure and improved heart health
  • Accelerates muscle recovery through increased blood flow and oxygen delivery
  • Natural pain relief with every session

Specifications

Sauna Cabin

SKU TRINITY-4X6
Model FD-5
Brand Finnmark
Capacity 4 persons
Exterior Dimensions 75"W x 64"D x 83"H
Interior Dimensions 71"W x 57.5"D x 75.5"H
Room Volume 130 cubic feet
Door Dimensions 23.625"W x 68.875"H
Glass Thickness 8mm with gasket
Exterior Material Thermal Plus™ Thermo-Aspen
Interior Material Western Canadian Cedar
IR Wattage 2,700W
Voltage 240V
Amperage 15A
Plug Type NEMA 6-15
Max IR Temperature 170°F
Max Traditional Temperature 190°F
Certification ETL, Low EMF
Product Weight 575 lbs
Shipping Dimensions 80"W x 40"D x 83"H
Shipping Weight 840 lbs

Harvia KIP Series B Sauna Heater

Model KIP45B
Kilowatt Rating 4.5kW
Voltage 240V / 1PH
Amperage 18.8A
Room Size 100 – 210 cubic feet
Width 16" (406mm)
Depth 11" (279mm)
Height 24" (609mm)
Heater Weight 40 lbs
Warranty 2-Year (Consumer Use)

What's Included

  • 6 sauna panels — bottom, top, back, front, left, right
  • Glass door, bench support, bench top, floor grid
  • Spectrum Plus™ infrared heater panels
  • Harvia KIP Series B 4.5kW sauna heater
  • 1 box of Harvia AC3000 sauna stones (44 lbs)
  • 192-diode Spectrum Red Light™ therapy panel with chromotherapy
  • Spectrum LED near-infrared ceiling lights
  • Controller 2.0 — LCD Wi-Fi touchscreen with Bluetooth audio
  • Heater cable, floor cable, power supply unit, power cable
  • Interior heater connections with wood cover
  • Door handle, screws, ETL certification, limited warranty

Shipping & Delivery

Free shipping to the contiguous United States. This sauna ships on a wooden pallet by special appointment. Delivery is curbside only — the driver will lower items to ground level but will not bring them inside. We contact customers prior to shipping to confirm logistics and discuss any delivery circumstances.

Remote or complex delivery areas may not qualify for free shipping. Shipping dimensions: 80"W x 40"D x 83"H. Shipping weight: 840 lbs.

Warranty policy

Our warranty coverage varies by product category and manufacturer. All products sold through Marterra Elements are covered by the manufacturer's warranty as specified below.

Product-Specific Warranty Terms

Outdoor Showers & Saunas (SaunaLife)

  • Structural Components: 3-year limited warranty on wood construction and structural integrity
  • Hardware & Fixtures: 2-year warranty on stainless steel components, heaters, and fixtures
  • Electrical Components: 1-year warranty on control systems and electrical parts

Official Warranty Information – SaunaLife

Hot Tubs & Spas (Empava, SaunaLife)

  • Shell & Structure: 3-year limited warranty on acrylic shells and structural components
  • Plumbing & Jets: 2-year warranty on pumps, jets, and plumbing systems
  • Heaters & Controls: 2-year warranty on heating elements and control systems
  • Cabinet & Cover: 1-year warranty on exterior cabinets and insulated covers

Official Warranty Information – SaunaLife

Official Warranty Information – Empava

Cold Plunge Tubs (Revive Plunge)

  • Tub & Structure: 1-year comprehensive warranty
  • Chiller Units: 1-year warranty on compressor and cooling systems
  • Filtration Systems: 1-year warranty on pumps and filtration components
  • Inflatable Models: 1-year warranty on materials and seams

Official Warranty Information – Revive Plunge

Infrared Saunas (Wizzisauna)

  • Wood Structure: 3-year limited warranty
  • Heating Panels: 5-year warranty on carbon-crystal heating elements
  • Electronics: 1-year warranty on control panels and Bluetooth systems

Official Warranty Information – Wizzisauna

Compression Therapy Systems (Rapid Reboot)

  • Control Units: 2-year warranty on CLASSIC and REGEN units
  • Attachments: 2-year warranty on boots, hips, and arm attachments
  • Accessories: 1-year warranty on thermal therapy sleeves

Official Warranty Information – Rapid Reboot

Fitness Equipment (OxeFit)

  • Frame & Structure: Varies by model (see product specifications)
  • Electronics & AI Systems: 1-year warranty
  • Accessories: 1-year warranty

Official Warranty Information – OxeFit

Wellness Technology (Airvida)

  • Red Light Therapy Beds: Varies by model (see product specifications)
  • Hyperbaric Chambers: Varies by model (see product specifications)
  • Hydrogen Systems: Varies by model (see product specifications)

1 year official warranty for all Airvida products and elements.

Pizza Ovens (Empava)

  • Structure: 2-year warranty on oven body and construction
  • Heating Elements: 2-year warranty on burners and heating systems

Official Warranty Information – Empava

What's Covered

Our warranty covers:

  • Manufacturing defects in materials and workmanship
  • Structural failures under normal use
  • Malfunctioning components during the warranty period
  • Parts replacement for defective components

What's Not Covered

The warranty does not cover:

  • Normal wear and tear
  • Damage from improper installation or use
  • Damage from neglect, abuse, or misuse
  • Damage from natural disasters, accidents, or acts of God
  • Cosmetic damage that doesn't affect functionality
  • Products modified or repaired by unauthorized technicians
  • Damage from improper maintenance or cleaning
  • Commercial use (unless specified as commercial-grade)
  • Shipping damage (must be reported within 48 hours of delivery)

Warranty Claim Process

Step 1: Contact Us

  • Email: support@marterraelements.com
  • Include your order number, product name, and photos/videos of the issue
  • Describe the problem in detail

Step 2: Evaluation

  • Our team will review your claim within 2-3 business days
  • We may request additional information or photos

Step 3: Resolution

  • Repair: We'll provide replacement parts and instructions
  • Replace: We'll ship a replacement unit if repair isn't feasible
  • Refund: In rare cases, we may offer a refund (subject to approval)

Step 4: Return (if required)

  • We'll provide a prepaid shipping label for warranty returns
  • Pack the item securely in original packaging when possible

Installation & Maintenance Requirements

To maintain warranty coverage:

  • Follow all installation instructions provided
  • Use only authorized installers for products requiring professional installation
  • Perform regular maintenance as specified in product manuals
  • Use only approved cleaning products and methods
  • Keep records of maintenance and service

Extended Warranty Options

Extended warranty coverage may be available for select products. Contact us for details on extended protection plans.

Manufacturer Direct Warranties

Some products are covered directly by the manufacturer. In these cases:

  • Marterra Elements will facilitate the warranty claim process
  • You may be directed to contact the manufacturer directly
  • We'll assist with coordination and follow-up

Shipping & Handling

  • Warranty Repairs: We cover shipping costs for warranty-approved repairs
  • Non-Warranty Issues: Customer is responsible for shipping costs
  • Curbside Delivery: Most products include free curbside delivery
  • White Glove Service: Available for purchase on select items

Customer Satisfaction Guarantee

In addition to manufacturer warranties, Marterra Elements offers:

  • 30-day satisfaction guarantee on select products
  • Expert customer support throughout your ownership
  • Access to installation guides and maintenance resources
  • Dedicated support team for troubleshooting

Contact Information

Marterra Elements Customer Support

  • Website: www.marterraelements.com
  • Email: support@marterraelements.com
  • Phone: +1 (844) 840-0414
  • Hours: Monday-Friday, 8 AM - 4 PM EST

Important Notes

  • Warranty terms begin from the date of purchase
  • Original proof of purchase required for all warranty claims
  • Warranty is non-transferable and applies to original purchaser only
  • Some products may have different warranty terms - refer to product-specific documentation
  • This warranty gives you specific legal rights, and you may have other rights which vary by state/province

Shipping & Refund

Shipping Policy

We offer multiple shipping options depending on the product type, brand, supplier, and delivery location. In certain cases, products are fulfilled and shipped directly from our authorized suppliers or fulfillment partners.

All available shipping methods, costs, and estimated delivery timelines are clearly displayed at checkout before payment is completed. Read more about Shipping Policy.

Return Eligibility

Customers in the United States may request a return within 30 days of delivery, subject to the conditions outlined below.

To be eligible for a return:

  • Items must be unused, undamaged, and in original condition
  • Original packaging, labels, and included accessories must be intact
  • Proof of purchase is required

Return eligibility may vary depending on the product type and supplier. Read more about Return and Refund

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