The Finnmark FD-4 Trinity puts full-spectrum infrared and a traditional rock heater in the same two-person cabin. Use the infrared panels for a dry session at up to 170°F, or use the rock heater for a traditional session at up to 190°F. The Vega Compact heater lets you pour water over the rocks to make steam.
The cabin has two seats and an 86 cubic foot interior. It is built with Thermo-Aspen outside and Western Red Cedar inside. An 8mm tempered glass door with a gasket opens into the cabin.
A Spectrum Red Light panel is included. The infrared system uses UL Listed full-spectrum panels rated at 1,750 W, and the Vega Compact 1900 rock heater is rated at 1.9 kW. The sauna uses a 120V supply and a NEMA 5-15P plug.
Key Features
Two Heat Sources: UL Listed 1,750 W full-spectrum infrared panels and a Vega Compact 1900 rock heater (1.9 kW).
Two Temperatures: 170°F on infrared and 190°F on the traditional heater with steam.
Steam: Pour water over the rocks of the traditional heater.
Red Light Panel: Spectrum Red Light panel included.
Seating: Two seats.
Exterior: Thermo-Aspen.
Interior: Western Red Cedar.
Door: 8mm tempered glass with gasket.
Product Specifications
Brand: Finnmark
Model: FD-4 Trinity
Product Type: Infrared and traditional steam sauna
Capacity: 2 people
Cabin Volume: 86 cu. ft.
Infrared Output: 1,750 W, UL Listed full-spectrum panels
Traditional Heater: Vega Compact 1900 rock heater, 1.9 kW
Maximum Temperature, Infrared: 170°F
Maximum Temperature, Traditional with Steam: 190°F
Red Light: Spectrum Red Light panel
Exterior Material: Thermo-Aspen
Interior Material: Western Red Cedar
Door: 8mm tempered glass with gasket
Voltage: 120V
Plug: NEMA 5-15P
Current: 15/20A
Dimensions and Weight
Interior Dimensions: 44.25"W x 45.5"D x 75.5"H
Exterior Footprint: 48"W x 48"D x 83"H
Weight: 437 lbs assembled
Installation and Compatibility
Electrical: 120V supply, NEMA 5-15P plug, 15/20A.
Health & Safety Notice
This product is designed for relaxation, recovery, and general wellness use. It is not intended to diagnose, treat, cure, or prevent any medical condition. Consult your healthcare provider before use if you have medical concerns.
Returns are subject to a 25% restocking fee. See our Return Policy at https://therecoverydepot.com/policies/refund-policy for full details.
Frequently Asked Questions
How many people does the Finnmark FD-4 Trinity fit?
It is a two-person sauna with two seats and an 86 cubic foot cabin. Interior dimensions are 44.25"W x 45.5"D x 75.5"H.
What heat sources does the FD-4 Trinity have?
It has UL Listed full-spectrum infrared panels rated at 1,750 W and a Vega Compact 1900 rock heater rated at 1.9 kW.
How hot does it get?
The maximum temperature is 170°F on infrared and 190°F with the traditional heater and steam.
Can I make steam in this sauna?
Yes. The Vega Compact rock heater lets you pour water over the rocks to make steam.
What are the exterior dimensions and electrical requirements?
The exterior footprint is 48"W x 48"D x 83"H, and the unit weighs 437 lbs assembled. It uses a 120V supply, a NEMA 5-15P plug, and is rated 15/20A.
