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Finnmark FD-3 Infrared Sauna for 4 – Full Spectrum Heat & Cedar Interior
by Finnmark
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3-4 person full spectrum infrared sauna
The Finnmark FD-3 seats three to four people and combines Spectrum Plus dual-wave infrared heaters with Spectrum Carbon far-infrared heaters, for nine heaters in total. The interior is clear A-grade Canadian Western red cedar and the exterior is Thermal Plus aspen. It runs on a 240V, 15 amp circuit.
Best for: Families or friends who want a 3-4 person infrared sauna.
Specifications at a glance
- Capacity: 3-4 persons
- Exterior: 70.9 in W x 45.3 in D x 78.3 in H
- Interior: 67.2 in W x 41.6 in D x 70.5 in H
- Heaters: 7 Spectrum Plus (4 back wall, 1 under bench, 2 front wall) and 2 Spectrum Carbon far-infrared
- Power: 3,150W
- Electrical: 240V, 15 amp, NEMA 6-15P plug
- Maximum temperature: 170°F
- Interior wood: clear A-grade Canadian Western red cedar
- Exterior: Thermal Plus Canadian aspen
- Manufacturer warranty: 10-year (see the manufacturer's warranty guide)
Space, power and setup
Measure the room, doorways and any stairs before delivery. The FD-3 needs a 240V, 15 amp outlet (NEMA 6-15P), which is not a standard household outlet, so have a licensed electrician confirm or install the circuit.
Questions buyers ask
What outlet does the FD-3 need?
A 240V, 15 amp outlet with a NEMA 6-15P plug. Power is rated at 3,150W.
How many people does it fit?
It seats 3-4 people.
How hot does it get?
Up to 170°F.
What controls and extras does it have?
A touchscreen controller, hi-fi audio and color lighting, as described in the product listing.
Helpful guides
Red light therapy vs. infrared sauna: how they differ | Cold plunge and sauna combo setups | Browse Finnmark saunas
Not sure which size or configuration fits your space? Call 1-762-214-2594 (Mon-Sun 9am-9pm EST) or request a quote, and our product specialists will help you compare options and plan delivery and installation.
Intended for general wellness use, following the manufacturer's instructions. Not intended to diagnose, treat, cure, or prevent any disease or medical condition. Results vary.
- Seats 3-4 people
- 7 Spectrum Plus dual-wave infrared heaters
- 2 Spectrum Carbon far-infrared side-wall heaters
- Reaches up to 170°F
- 240V, 15 amp circuit
- Clear A-grade Canadian Western red cedar interior
- Thermal Plus aspen exterior
- Touchscreen controller
- Hi-fi audio
- Color lighting
| Capacity | 3-4 persons |
|---|---|
| Exterior dimensions | 70.9 in W x 45.3 in D x 78.3 in H |
| Interior dimensions | 67.2 in W x 41.6 in D x 70.5 in H |
| Heaters | 4 Spectrum Plus dual-wave (back wall), 1 Spectrum Plus (under bench), 2 Spectrum Plus (front wall), 2 Spectrum Carbon far-infrared (side walls) |
| Wattage | 3,150W |
| Voltage | 240V |
| Amperage | 15 amp |
| Plug | NEMA 6-15P |
| Maximum temperature | 170°F |
| Interior wood | clear A-grade Canadian Western red cedar |
| Exterior | Thermal Plus Canadian aspen |
| Heater certification | Spectrum Plus heaters are UL Listed |
| Manufacturer warranty | 10-year (see the manufacturer's warranty guide) |
| SKU | FD-KN003 |
What ships with this product varies by model and configuration. Contact our product specialists and we'll confirm exactly what's included with your order.
Shipping & Delivery: Most orders ship free within 1-2 business days via curbside delivery. Need it brought inside and set up? Choose White Glove Delivery at checkout and our team will follow up with pricing and scheduling.
Warranty: Warranty coverage varies by manufacturer and product. Contact our team before purchase for the specific warranty terms on this item, or reach out any time after your purchase with a manufacturer defect concern — we'll help you through the process.
Product manuals, installation guides, and spec sheets for this item are available on request. Contact our product specialists and we'll send you the documentation.