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Finnmark FD-3 4-Person Full-Spectrum Infrared Sauna | FD-KN003

Finnmark FD-3 4-Person Full-Spectrum Infrared Sauna | FD-KN003

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$7,249.00
$7,249.00 - $7,249.00
$7,249.00
$6,495.00
$6,495.00 - $6,495.00
$6,495.00
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No Sales Tax (Except WY)
10-Year Warranty
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Professional Installation Available
SKU FD-KN003

Turn any room into a personal wellness retreat with the Finnmark FD-3 Full Spectrum Infrared Sauna. This compact, high-performance unit delivers powerful full-spectrum heat.

Featuring UL Listed Spectrum Plus™ heaters and 360° Carbon surround panels, it reaches up to 170°F in less than an hour for deep, effective sweat sessions. The antimicrobial cedar interior resists mold and odors, while the durable Thermal Plus™ Aspen exterior prevents warping or decay.

The FD-3 combines short- and long-wave heat for deep, penetrating warmth that covers your entire body. Complemented by advanced chromotherapy lighting system, this thoughtfully designed sauna is a lasting investment in your personal well-being.

Features

  • Antimicrobial Western Canadian Red Cedar interior resists mold, bacteria, and odors for a clean, low-maintenance environment
  • Thermal Plus™ Canadian Aspen exterior is heat- and steam-treated to prevent rot, warping, decay, and chipping
  • Long-wave Carbon 360° panels combined with UL Listed short-wave Spectrum Plus™ heaters for deep, even heat
  • Heaters are strategically positioned for full-body coverage and designed for optimal heat distribution and relaxation
  • Built-in LCD touchscreen control panel with Bluetooth audio compatibility
  • Premium audio system with integrated HiFi speakers for immersive relaxation
  • 8mm tempered glass door and panels for strength and efficient heat retention
  • Ergonomic backrest supports comfort during longer sessions
  • Adjustable, removable feet provide stability on uneven surfaces
  • Independently tested low-EMF output by a NASA award-winning lab
  • High-emissivity infrared heaters designed for optimal performance
  • Double-walled construction with non-toxic wool insulation for energy efficiency and safety

Specifications

Product Spec Sheet

Maximum Temperature
170°F
Exterior Dimensions
72"W × 46"D × 78"H
Interior Dimensions
67"W × 41"D × 70"H
Electrical Requirements
240V / 15A, NEMA 6-15P
(Please consult a certified electrician.)
Infrared Heater Output
3150W
Wood Type
Thermal Plus™ European Aspen Exterior
Clear "A" Grade Western Canadian Red Cedar Interior
Sauna Weight
488 lb
Shipping Weight
605 lb
Shipping Dimensions
80"W × 40"D × 79"H

What's Included

  • Full spectrum infrared heater panels
  • 8mm tempered glass for ultimate thermal retention
  • Bench: Support frame & seat top
  • Removable and adjustable sauna feet for uneven surfaces
  • Spectrum LED near infrared ceiling lights + red light therapy
  • Controller 2.0, built-in LCD touchscreen control panel with Bluetooth audio
  • Audio upgrade with 6" Hi-Fi speakers
  • Interior heater connections with wood cover
  • Power supply unit + power & heater cables
  • Screws & installation hardware
  • ETL certification
  • 10-year limited warranty
  • Unlimited lifetime Spectrum Plus

Manuals & Certifications

Owner's Manual

Touchscreen Controller Manual

Dimensions Diagram

ETL Certification

EMF Test

Outstanding Customer Satisfaction

Trusted by customers for comfort, quality, and lasting peace of mind.

Full Warranty Included

Authorized dealer pricing with manufacturer-backed coverage.

Flexible Financing

Monthly payments from 0% APR with Shop Pay.

Expert Support

Reach our team by live chat, phone, or email — M–F, 9am–5pm EST.

Customers are saying

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Finnmark FD-1 1-Person Full-Spectrum Infrared Sauna with labeled components | FD-KN001

Full Spectrum Combination

Short wave Spectrum Plus™ and Carbon 360™ infrared heaters are designed to deliver full-spectrum heating, reaching temperatures up to 170°F in under one hour. The combined use of short-wave and carbon heating elements helps provide consistent and efficient infrared heat distribution throughout the sauna. Engineered for rapid warm-up and comprehensive infrared coverage.

High-Tech Infrared Heaters

Finnmark Designs’ full-spectrum infrared saunas combine short-wave and long-wave technology for an unmatched therapeutic experience—engineered for fast warm-up, deep heat, and complete body coverage.

  • Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters
  • Spectrum Carbon long wave infrared heaters engineered to produce 360° of pure infrared
  • Spectrum LED near infrared ceiling lights combined with medical grade color therapy

Cedar Interior with Thermal Plus™ Exterior

Antimicrobial Western Canadian cedar interior protects against mold, bacteria, and fungus. The Thermal Plus™ exterior is heat- and steam-treated to prevent rot, warping, decay, or chipping—making Finnmark Designs full-spectrum infrared saunas among the most durable and health-conscious on the market.