Specs
Exterior Shortest Side (in)

48

Exterior Longest Side (in) Maximum Exterior Length of the longest side when assembled.

48

Exterior Height (in) Maximum exterior height from earth to roof peak

83

Model

Trinity FD4

Bench Length (in) Maximum bench length in inches.

44

People

2

DIY Friendly DIY 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!
Exterior Materials

Thermo-Aspen

Insulation

Yes – European Standard

European 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.
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

Interior Materials

Western Red Cedar

Made in

Shipping Cost Please inquire if shipping outside the continental USA.

Free

Shipping Method

LTL Curbside Delivery w/ Lift Gate Service

Our shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location but you might get lucky. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
Warranty

5

,

Limited Lifetime

Video Attachments

Planning Session

We'd love the opportunity to answer your questions, learn about your sauna preferences, and make sure everything is considered for a flawless delivery. Book a planning session now.

Gallery
Best Price Guaranteed
At Sauna Marketplace, we always offer the best service, support, and expertise. But that doesn't mean you should pay more! Place your order knowing that if you find a better deal published from another authorized dealer, we'll refund the difference. Valid until your order leaves the warehouse.
Includes

Comes with everything you need! 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 Vega Compact 1900 sauna heater, 1 box of the Harvia AC3000 0-10cm sauna stones (29 lbs), please note that each natural stone is unique in shape and size, we recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (additional freight charges will apply), medical-grade LED red light therapy with 650nm plus color chromotherapy, V2 LCD controller 5" touchscreen with Bluetooth, ETL certification, US-Based Support, full manufacturer warranty.

Ship Free!

Yes, all Finnmark rooms ship for free within the continental US.  Contact Sauna Marketplace for a worldwide shipping.

Finnmark Designs FD4 Trinity Hybrid Infrared AND Traditional Sauna

Can’t decide between Short Wave Infrared, Long Wave Infrared, Red Light Therapy, or a Traditional Sauna?

The Finnmark FD-4 Trinity has it all.  Finnmark’s the only infrared company that can properly pull this off, with infrared panels designed to handle the heat and humidity of the included Finnish sauna heater with rocks.  These rooms to European sauna standards with mineral wool insulation and a radiant barrier, allowing their infrared system alone to reach 170°F.

Build Your Quote:

$7,795.00

Add a marine grade cover to make your FD4 an outdoor sauna! This cover is also great for transporting our keeping it looking new in a basement or garage.

None Marine Grade Cover +$1,298.00
Fulfillment Partner:

We partner with distributors and manufacturers who guarantee the lowest prices, fastest delivery, and additional 'whatever-it-takes' support. 

Bathing Brands - Chicago
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.

Is this the only 'Infrared Sauna' (hear us out)?

It's fair to call us 'Infrared Skeptics' here at Sauna Marketplace.  In fact, we don't even like to call them saunas.  To us, a sauna requires heated rocks and steam.  But we've been hearing from professional athletes, trainers, and doctors that there are real benefits and if we can get past the overhyped marketing and bad practices in the industry, infrared technology is a useful tool for health, recovery, and wellness.

We took a deep dive and were happy to find Finnmark Designs doing everything right.  From materials to technology - Finnmark REALLY stood out.  But the experience is what won us over.

Because the rooms are so well constructed and insulated, they can actually reach 170°F with with infrared technology alone.  Better yet, Finnmark designed their panels to withstand the higher temperatures and humidity of a traditional Finnish sauna.  That means they can be paired with traditional Finnish sauna heaters with rocks and steam.  

And the FD4 Trinity Sauna is born.  And yes, since it has a traditional heater we can all agree this is a Sauna :)

The Infrared That Lasts

And you won't get left behind, not with Finnmark on Sauna Marketplace.

We hear from infrared customers all the time who are unable to find parts to repair their heaters.  Finnmark has the best warranty in the business, and stocks all parts in North America.

We still think a traditional Finnish sauna (with rocks and steam) are the best, but there are good reasons to go with Infrared, and Finnmark is the only manufacturer we trust for infrared technology - ESPECIALLY inside a Hybrid sauna like this.

Specs
Exterior Shortest Side (in)

48

Exterior Longest Side (in) Maximum Exterior Length of the longest side when assembled.

48

Exterior Height (in) Maximum exterior height from earth to roof peak

83

Model

Trinity FD4

Bench Length (in) Maximum bench length in inches.

44

People

2

DIY Friendly DIY 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!
Exterior Materials

Thermo-Aspen

Insulation

Yes – European Standard

European 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.
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

Interior Materials

Western Red Cedar

Made in

Shipping Cost Please inquire if shipping outside the continental USA.

Free

Shipping Method

LTL Curbside Delivery w/ Lift Gate Service

Our shipping partners will deliver your sauna curbside. They are not responsible for moving it into the garage or final location but you might get lucky. Please contact Sauna Marketplace to plan for a smooth delivery and installation.
Warranty

5

,

Limited Lifetime

Video Attachments

Planning Session

We'd love the opportunity to answer your questions, learn about your sauna preferences, and make sure everything is considered for a flawless delivery. Book a planning session now.

Gallery
Best Price Guaranteed
At Sauna Marketplace, we always offer the best service, support, and expertise. But that doesn't mean you should pay more! Place your order knowing that if you find a better deal published from another authorized dealer, we'll refund the difference. Valid until your order leaves the warehouse.
Includes

Comes with everything you need! 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 Vega Compact 1900 sauna heater, 1 box of the Harvia AC3000 0-10cm sauna stones (29 lbs), please note that each natural stone is unique in shape and size, we recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (additional freight charges will apply), medical-grade LED red light therapy with 650nm plus color chromotherapy, V2 LCD controller 5" touchscreen with Bluetooth, ETL certification, US-Based Support, full manufacturer warranty.

Ship Free!

Yes, all Finnmark rooms ship for free within the continental US.  Contact Sauna Marketplace for a worldwide shipping.