Name: Finnmark Trinity FD-7 4-Person Thermo-Aspen Combination Traditional + Infrared Barrel Sauna | FD-KN007
Brand: Finnmark Designs
SKU: FD-KN007
Price: 9495.0 USD
Availability: InStock

Finnmark Trinity FD-7 4-Person Thermo-Aspen Combination Traditional + Infrared Barrel Sauna | FD-KN007

Authorized Dealer

Manufacturer's Warranty Included

Save $1,055.00

$10,550.00

$10,550.00 - $10,550.00

$10,550.00

$9,495.00

$9,495.00 - $9,495.00

$9,495.00

Free & Fast Shipping

No Sales Tax (Except WY)

5-Year Warranty

30-Day Returns

Professional Installation Available

The Finnmark Trinity™ FD-7 is a 6×6 outdoor hybrid barrel sauna, built from 1.5" thick European Thermo-Aspen — naturally heat-treated for improved durability and moisture resistance. Five Spectrum Plus™ UL listed short-wave infrared heaters operate on a standard 120V outlet, while a separately purchased 240V traditional heater (up to 6kW) adds rock sauna capability. With both systems running simultaneously, the barrel reaches up to 185°F.

The 8mm solid tempered glass door and window panels bring natural light into a two-tier Thermo-Aspen bench interior. A Wi-Fi Controller 2.0 LCD panel with Bluetooth audio and lighting controls handles remote operation and ambiance. Three stainless steel bands provide corrosion protection, and three precision-engineered heavy-duty supports. Shingle roof with moisture barrier completes the weather-ready build.

Features

Combination infrared and traditional barrel sauna
Patent pending design
5 Spectrum Plus™ UL listed short-wave low EMF infrared heaters (mid and far infrared)
Traditional sauna heater required — 240V, up to 6kW, sold separately
1.5" thick European Thermo-Aspen — heat-treated for improved durability and moisture resistance
Two-tier Thermo-Aspen bench system with three-bar Canadian Cedar backrest
8mm solid tempered glass door and window panels
Wi-Fi Controller 2.0 — LCD panel with Bluetooth audio and lighting controls
Under-bench RGB LED lighting
Shingle roof with moisture barrier
3 stainless steel bands — corrosion resistant
3 precision-engineered heavy-duty supports
Disc ventilation
5-year limited sauna warranty / lifetime warranty on Spectrum Plus heaters

Specifications

Capacity

4 people

Construction Material

Thermally modified European Aspen

Stave Thickness

1.5"

Exterior Dimensions

75"W × 79"D × 75"H

Interior Dimensions

66"W × 72"D × 71"H

Room Volume

135 cu. ft.

Door Dimensions

26.3"W × 62.3"H

Glass Thickness

8mm solid tempered with rubber gasket

Upper Bench Dimensions

71"W × 24"D × 33.1"H

Lower Bench Dimensions

60.5"W × 16"D × 16.7"H

Roof

Shingles with moisture barrier

Barrel Straps

3 stainless steel

Supports

3 heavy-duty precision-engineered

Max Temperature (infrared only)

170°F

Max Temperature (combined)

185°F

Assembled Weight

830 lb

Shipping Dimensions

60"W × 80"D × 80"H

Shipping Weight

1,300 lb

Warranty

5-year limited (sauna) / Lifetime (Spectrum Plus heaters)

Infrared system

Infrared Heaters

5 Spectrum Plus™ UL listed

Wattage Per Heater

350 W

Total Infrared Wattage

1,750 W

Electrical Requirements

120V / 15A (NEMA 5-15P)

Infrared Power Cord Length

9 ft

EMF Rating

Very low — tested by NTS

What's Included

LED under-bench light
Slats
Front trim
Front panel
Back panel
Metal bands and clamps
Shingles
Insulating layer
Male light cable
Handle
Outdoor power cover
Outdoor power cover screws
Sauna body screws
Bench screws
Duckboard screws
Screws (general)
Screw cover
Power cord
Basic level
Pencil
Necessary fasteners
Drain

Manuals & Resources

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.

Finnmark FD-6 4-Person Cedar Traditional-Infrared Barrel Sauna | FD-KN006

Advanced Hybrid Sauna Engineering

Developed through 2+ years of R&D and tested through Aspen winters. With 1.5" staves, 4" thick walls, UL-listed infrared heating, and traditional rock heater (sold separately) options, Finnmark delivers efficient heat retention and a premium sauna experience in any climate.

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.