Finnmark Designs FD-4 Trinity Infrared & Steam Sauna Combo review
By Kirill Gissa · Published · Specs checked Oct 8, 2026 · 
Scores 8.5/10, tied for 14th of the 17 dry saunas we track. At $7,795 it works out to $3,897.50 per seat, which is 1.6 times the category median of $2,440.96 per seat. Its stated maximum of 194°F is above the 190°F median of the 11 dry saunas that state one.
No 240 V wiring: it runs on 120 V on a dedicated 20 A circuit, while 10 of the 17 dry saunas need 240 V
A long warranty matters: 10 years, while 6 of the 12 dry saunas that state a warranty carry a lifetime one
- Price
- $7,795
- Heat
- Infrared plus electric stove, Spectrum Plus emitters and Harvia Vega Compact 1.9 kW
- Seats
- 2
- Max temp
- 194°F
- Warranty
- 10 years
- Returns
- 30 days
Specs and sources
Checked Oct 8, 2026 · source under each valueHeat and power
Build
Buying
Warranty, returns and shipping
10 yrs on the sauna; lifetime on Spectrum Plus infrared emitters; 2 yrs on the Harvia heater.
Topture: request within 30 days of delivery; new, uninstalled, in original packaging, with photos; payment-processing fee, restocking fee and freight both ways are withheld.
Warranty: 10 yrs on the sauna; lifetime on Spectrum Plus infrared emitters; 2 yrs on the Harvia heater. Returns: Topture: request within 30 days of delivery; new, uninstalled, in original packaging, with photos; payment-processing fee, restocking fee and freight both ways are withheld. Shipping: LTL freight via dealer. Source: finnmarkdesigns.com, checked Oct 8, 2026.
Source: finnmarkdesigns.com, checked Oct 8, 2026.
Compared with similar dry saunas
All 17 dry saunas →| Model | Price | Heat | Seats | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Finnmark Designs FD-4 Trinity Infrared & Steam Sauna ComboTHIS MODEL | $7,795 | Infrared plus electric stove, Spectrum Plus emitters and Harvia Vega Compact 1.9 kW | 2 | 10 years | 8.5/10 | Check price → |
| Golden Designs Sundsvall 2 Person (GDI-7289-02) | $7,999 | Electric heater, 6.0 kW | 2 | Not stated | 8.75/10 | See specs → |
| Dundalk LeisureCraft Element Nook 2 Person (606003) | $8,435 | Electric heater, sold separately | 1–2 | 5 years (limited) | 8.5/10 | Check price → |
| Finnmark Designs FD-5 Trinity XL Infrared & Steam Sauna Combo | $8,995 | Infrared plus electric stove, Spectrum Plus emitters and Harvia KIP45B 4.5 kW | 3–4 | 10 years | 9/10 | Check price → |
| Golden Designs Copenhagen 3 Person (GDI-7389-02) | $8,999 | Electric heater, 8.0 kW | 3 | Not stated | 9/10 | See specs → |