Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Exterior Shortest Side (in)64.25
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.75
Exterior Height (in)Maximum exterior height from earth to roof peak83
DIY FriendlyDIY Friendly Saunas means a professional is not required for the build. Basic tools like a drill, hammer, and level are typically required. With Sauna Marketplace, you do not risk your warranty by assembling a sauna yourself. If you prefer a professional installation, please reach out to the Sauna Marketplace team so we can check for a trusted installer near you.Yes*An electrician is still required for all electrical work!
InsulationYes – European StandardEuropean Sauna Construction Standards consist of a thick, insulated wall assembly that maximizes the drying potential of interior and exterior cladding. The typical wall assembly consists of Exterior Cladding -> Air Gap -> Rain Barrier -> Studded Wall with Mineral Wool Insulation -> Foil Radiant Barrier with Taped Seams -> Air Gap -> Interior Cladding.
Made in
Warranty5, Limited Lifetime
Shipping MethodLTL Curbside Delivery w/ Lift Gate ServiceOur shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location, so please plan to offload the crate yourself. Larger crates may require a forklift or loading dock. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
ModelFD5 Trinity XL
Bench Length (in)Maximum bench length in inches.71
Exterior MaterialsThermally Modified AspenThermally Modified Wood has been naturally altered at a cellular level using only heat and steam. This natural process is common in Europe, used to make the wood more durable, longer lasting, and stable. Thermo-Aspen is significantly darker than raw Aspen, closer to western red cedar.
People4
Shipping CostPlease inquire if shipping outside the continental USA.Free
Room Height at Heater (in)Interior Height at heater position in inches. In context of a heater, this is the minimum height required to instal. In context of a sauna, this allows you to find a heater that can be safely installed.75
Adjusted Volume175
Attachments
Gallery
Includes

Includes everything you need, with the exception of a bucket and ladle to pour water on the rocks!

Bottom panel, top panel, back panel, front panel, left panel, right panel, glass door, bench support, bench top, heater cable, floor cable, screws, power supply unit, power cable, interior heater connections with wood cover, door handle (2 screws), infrared sauna heater panels, Harvia KIP Series B 4.5kW sauna heater, 1 box of the Harvia AC3000 0-3.9 in sauna stones (44 lbs), medical-grade LED red light therapy at 650nm plus color chromotherapy, V2 LCD Controller 5" touchscreen controller with Bluetooth, ETL certification, manufacturer warranty, US-Based Support and parts stocked.

Ships Free!

All Finnmark rooms currently ship for free on Sauna Marketplace, within the continental US.  We can ship these worldwide, but please reach out for a freight quote.

Finnmark Designs FD5 Trinity XL Infrared + Traditional Finnish Sauna Hybrid

We think traditional saunas are the best, but that doesn’t mean infrared doesn’t have benefits. The Finnmark FD-5 Trinity XL is the ultimate in thermal exploration.

Full-spectrum infrared (the only IR technology we trust, capable of 170°F on its own, the highest in the industry), medical-grade red light therapy, and a Harvia Finnish sauna heater with rocks and built-in controls. A lot of tools at your fingertips.

Walls are insulated up to 4” thick with mineral wool and a radiant barrier. Western red cedar on the inside, Thermo-Aspen on the outside. Built to the same European standards as the high-end saunas we sell here on the Marketplace.

10-year warranty. All parts stocked in North America.

Build Your Quote:

$8,995.00

Cover

Marine Grade cover for outdoor use! Also useful for keeping your sauna clean and protected in basement, garages, or transport.

None Finnmard FD5 Outdoor Cover +$1,398.00

Share your selected heater size and add-ons. Prices and availability are confirmed when the link is opened.

Zero Interest Payments:

Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

Pay with HSA/FSA:

We teamed up with FLEX to make HSA/FSA payments easier than ever.

Finnmark FD5 Infrared and Traditional Sauna Hybrid Combination Features
Finnmark FD-5 Trinity XL Detailed Drawings Combination Hybrid Sauna with Finnish and Infrared Heater and Red Light Therapy
ModelFD-5
External MaterialsThermo-Aspen
Interior MaterialsWestern Canadian Cedar
Volts240
IR Watts2700
Amperage15 | TBD
Plug TypeNEMA 5-15P
Maximum TemperatureIR 170° F | Traditional 190° F
Interior Dimensions71"W x 57.5"D x 75.5"H
Exterior Dimensions75"W x 64"D x 83"H
Room Volume130 cu. ft.
Door Dimensions23.625"W x 68.875"H
Door Handle Dimensions1.5"W x 13.25"H
Glass Thickness0.3in W/Gasket
Product Weight575 lbs
Shipping Dimensions36"W x 80"D
Shipping Weight654 lbs W/48 lb Pallet
ModelKIP45B
Kilowatt Rating4.5kW
Primary FuelElectric
Minimum Adjusted Cubic Feet100
Maximum Adjusted Cubic Feet210
Voltage240V
Phase1PH
Amperage18.8 Amps
Heater Weight40 lbs
Shipping Weight with Sauna Stones84 lbs
Width In Inches16"
Depth In Inches11"
Height In Inches24"
Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Exterior Shortest Side (in)64.25
Exterior Longest Side (in)Maximum Exterior Length of the longest side when assembled.75
Exterior Height (in)Maximum exterior height from earth to roof peak83
DIY FriendlyDIY Friendly Saunas means a professional is not required for the build. Basic tools like a drill, hammer, and level are typically required. With Sauna Marketplace, you do not risk your warranty by assembling a sauna yourself. If you prefer a professional installation, please reach out to the Sauna Marketplace team so we can check for a trusted installer near you.Yes*An electrician is still required for all electrical work!
InsulationYes – European StandardEuropean Sauna Construction Standards consist of a thick, insulated wall assembly that maximizes the drying potential of interior and exterior cladding. The typical wall assembly consists of Exterior Cladding -> Air Gap -> Rain Barrier -> Studded Wall with Mineral Wool Insulation -> Foil Radiant Barrier with Taped Seams -> Air Gap -> Interior Cladding.
Made in
Warranty5, Limited Lifetime
Shipping MethodLTL Curbside Delivery w/ Lift Gate ServiceOur shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location, so please plan to offload the crate yourself. Larger crates may require a forklift or loading dock. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
ModelFD5 Trinity XL
Bench Length (in)Maximum bench length in inches.71
Exterior MaterialsThermally Modified AspenThermally Modified Wood has been naturally altered at a cellular level using only heat and steam. This natural process is common in Europe, used to make the wood more durable, longer lasting, and stable. Thermo-Aspen is significantly darker than raw Aspen, closer to western red cedar.
People4
Shipping CostPlease inquire if shipping outside the continental USA.Free
Room Height at Heater (in)Interior Height at heater position in inches. In context of a heater, this is the minimum height required to instal. In context of a sauna, this allows you to find a heater that can be safely installed.75
Adjusted Volume175
Attachments
Gallery
Includes

Includes everything you need, with the exception of a bucket and ladle to pour water on the rocks!

Bottom panel, top panel, back panel, front panel, left panel, right panel, glass door, bench support, bench top, heater cable, floor cable, screws, power supply unit, power cable, interior heater connections with wood cover, door handle (2 screws), infrared sauna heater panels, Harvia KIP Series B 4.5kW sauna heater, 1 box of the Harvia AC3000 0-3.9 in sauna stones (44 lbs), medical-grade LED red light therapy at 650nm plus color chromotherapy, V2 LCD Controller 5" touchscreen controller with Bluetooth, ETL certification, manufacturer warranty, US-Based Support and parts stocked.

Ships Free!

All Finnmark rooms currently ship for free on Sauna Marketplace, within the continental US.  We can ship these worldwide, but please reach out for a freight quote.

PLAN THE WHOLE SAUNA

The room and heater still have to work as one system.

Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.