Golden Designs Forssa Edition 3-4 Person Sauna vs Finnmark FD-4 Trinity Hybrid Infrared & Steam Sauna
Both models appear in our Best Home Saunas of 2026 comparison. This page sets their published specs side by side.
We have not tested these products hands-on. Everything here comes from manufacturer specifications and merchant listings, last checked Oct 1, 2026. Price buttons are affiliate links, and we may earn a commission at no extra cost to you.Affiliate disclosure
Key differences
The Golden Designs Forssa Edition 3-4 Person Sauna lists for $796 less than the Finnmark FD-4 Trinity Hybrid Infrared & Steam Sauna ($6,999 vs $7,795). Prices were checked on different dates and change often; check the merchant before you buy.
In our Best Home Saunas of 2026 comparison, the Golden Designs Forssa Edition 3-4 Person Sauna is the Best Value pick.
Side by side
"Not published" means our data has no figure from the maker or merchant. Warranty entries are what the listing said; check the maker's terms before you buy.
Price buttons are affiliate links. We may earn a commission at no extra cost to you.Affiliate disclosure
Exterior 48"W x 48"D x 83"H; interior 44.25"x45.5"x75.5"
Power
8kW stove requires a dedicated 240V/40A circuit; separate 120V/15A circuit for lighting and audio controls
120V, 15-20A, NEMA 5-15P plug
Placement
Indoor
Indoor
Installation needs
Indoor installation; requires a dedicated 240V/40A circuit for the heater
Indoor installation; plugs into a standard 120V/15-20A outlet, no dedicated 240V circuit required
Warranty (as listed)
Not published
Authorized dealers list this model under Finnmark's standard limited warranty; the specific term is not stated on every listing — Select Saunas' listing states a 2-year consumer warranty on the traditional heater; confirm cabin coverage with the dealer before purchasing.
Heater Type
8.0kW built-in electric stove
Not published
Cabin Material
Canadian Hemlock exterior, Red Cedar interior
Western Red Cedar interior, Thermo-Aspen exterior
Door
Tempered glass
Not published
Assembled Dimensions
75"W x 48"D x 78"H
Not published
Heaters
Not published
Spectrum Plus infrared array (1750W, max 170°F) plus Harvia Vega Compact 1900 traditional stove (1.9kW, max 190°F)
A 2-person hybrid cabin combining a 1750W infrared array with a 1.9kW Harvia traditional stove and red light therapy, on a standard 120V/15-20A circuit.
Why we labeled it: The lowest-priced hybrid here, and the only cabin in this comparison that runs on a standard 120V outlet, so no electrician is needed.
May suit: Households that want both a quick infrared session and a full steam sauna in one cabin; Buyers without 240V service available
In its favor
Genuinely dual-mode (infrared and traditional steam) on a single 120V circuit
Red light therapy included rather than a separate purchase
ETL certified (an electrical safety listing)
Against it
Manufacturer's own product page does not state a specific warranty term (other Finnmark models list 10 years — confirm before buying)
2-person capacity only — see the FD-5 Trinity XL for a 4-person version
Requires 29+ lbs of sauna stones for the traditional side, sold separately by some dealers
