Finnmark FD-3 Trinity — 4-Person Full Spectrum Infrared Sauna | Carbon 360 + Short-Wave

Most infrared saunas use one type of heat. The Finnmark FD-3 uses two — simultaneously. Long-wave Carbon 360 panels wrap the cabin in gentle, even far-infrared heat, while UL-listed Spectrum Plus™ short-wave heaters deliver deeper, more targeted penetration. The result is a full-spectrum infrared experience that reaches 170°F in under an hour and removes up to 17% more toxins than single-spectrum systems.

Built for four people, finished in antimicrobial Western Canadian cedar inside and Thermal Plus™ Aspen outside, with Bluetooth audio, 6" HiFi speakers, and an LCD touchscreen controller. This is a home sauna that doesn't ask you to compromise.

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Key Features

• Full Spectrum Infrared: Carbon 360 + Spectrum Plus™ — Long-wave carbon panels + UL-listed short-wave heaters deliver deeper heat penetration and up to 17% more toxin removal than single-spectrum systems
• Reaches 170°F in Under an Hour — Fast heat-up time means less waiting and more time in the sauna
• 4-Person Capacity — Spacious interior designed for shared sessions or solo use with room to stretch out
• Antimicrobial Western Canadian Cedar Interior — Naturally combats mold, bacteria, and fungus for a cleaner, healthier sauna environment
• Thermal Plus™ Aspen Exterior — Rot and warp-resistant cladding built for long-term durability in home environments
• LCD Touchscreen Controller — Intuitive controls for temperature, timer, and session settings
• Bluetooth Audio + 6" HiFi Speakers — Stream music, podcasts, or guided meditation directly into your session
• Adjustable Sauna Feet — Accommodates uneven surfaces for flexible placement anywhere in your home

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Why Full Spectrum Infrared?

• Far Infrared (Carbon 360) — Long-wave heat penetrates deep into tissue, promoting circulation, relaxation, and detoxification at lower, more comfortable temperatures
• Near/Mid Infrared (Spectrum Plus™) — Short-wave energy targets muscle tissue and joints more directly, accelerating recovery and increasing sweat output
• Combined Effect — Full spectrum delivers the benefits of both wavelengths simultaneously — deeper penetration, more effective detox, faster recovery

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Health & Wellness Benefits

• Muscle Recovery — Infrared heat penetrates tissue to reduce inflammation and accelerate post-workout recovery
• Detoxification — Deep sweating supports the body's natural elimination of toxins and heavy metals
• Improved Circulation — Heat dilates blood vessels and supports cardiovascular health with regular use
• Stress Relief & Better Sleep — Regular sessions reduce cortisol and promote deeper, more restorative sleep
• Skin Health — Increased circulation and sweating support a healthy, natural complexion
• Joint & Pain Relief — Infrared heat soothes joint stiffness and chronic pain more effectively than traditional steam saunas

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Specifications

• Model: Finnmark FD-3 (FD-KN003)
• Capacity: 4 persons
• Heater Type: Full spectrum — Carbon 360 (far infrared) + Spectrum Plus™ (near/mid infrared)
• Max Temperature: 170°F
• Interior Wood: Antimicrobial Western Canadian Cedar
• Exterior Wood: Thermal Plus™ Aspen
• Controls: LCD touchscreen controller
• Audio: Bluetooth + 6" HiFi speakers
• Feet: Adjustable for uneven surfaces
• Series: Trinity

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Downloads

• Product Brochure (PDF)
• Spec Sheet (PDF)
• User Manual (PDF)

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Shipping & Delivery

The Finnmark FD-3 ships free via freight carrier across the USA. Delivered within 5–10 business days. Curbside delivery is standard — contact us before ordering if you need white-glove or in-home placement assistance.

Questions before you buy? We're happy to help. Reach out anytime.