Finnmark Designs Trinity FD-9 Outdoor Combination Sauna (SKU FD-KN005) review
By Kirill Gissa · Published · Specs checked Oct 6, 2026 · 
Scores 8.5/10, tied for 22nd of the 25 outdoor saunas we track. No price is published, so it gets the minimum 1.5 of 2 on price. No max temperature or heat-up time is published for it; 4 of the 25 outdoor saunas state a max temperature. Its 20-year warranty is longer than the 5-year median for non-barrel outdoor saunas.
You want a price up front: none is published, while 22 of the 25 outdoor saunas show one
- Price
- Price on request
- Heat
- Hybrid: infrared + electric stove
- Seats
- 2
- Max temp
- Not stated
- Warranty
- 20 years (limited)
- Returns
- 30 days
Specs and sources
Checked Oct 6, 2026 · source under each valueHeat and power
Build
Buying
Warranty, returns and shipping
20 years (sauna); infrared Spectrum Plus: unlimited lifetime.
30-day money-back guarantee.
LTL freight, continental US only (no P.O. Box, AK, HI).
Warranty: 20 years (sauna); infrared Spectrum Plus: unlimited lifetime. Returns: 30-day money-back guarantee. Shipping: LTL freight, continental US only (no P.O. Box, AK, HI). Source: finnmarkdesigns.com, checked Oct 6, 2026.
Source: finnmarkdesigns.com, checked Oct 6, 2026.
Compared with similar outdoor saunas
All 25 outdoor saunas →| Model | Price | Heat | Seats | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Aleko Thermowood Wet Dry Outdoor Sauna with Asphalt Roof, 6 kW, 5 Person (SKD5HEM-AP) | $4,699 | Electric heater | 5 | 1 year (limited) | 9.25/10 | See specs → |
| Dundalk LeisureCraft Canadian Timber Serenity (CTC2245W) | $6,127 | Heater sold separately | 5 | 5 years | 9.25/10 | Check price → |
| Dundalk LeisureCraft Canadian Timber Tranquility (CTC2345W) | $6,483 | Heater sold separately | 6 | 5 years | 9.25/10 | Check price → |
| Aleko Liatris Rustic Cedar Barrel Sauna with Front Porch Canopy, 5-6 Person (SB6CED-AP) | $6,699 | Electric heater | 5–6 | 1 year (limited) | 9.25/10 | See specs → |
| Finnmark Designs Trinity FD-9 Outdoor Combination Sauna (SKU FD-KN005)THIS MODEL | Price on request | Hybrid: infrared + electric stove | 2 | 20 years (limited) | 8.5/10 |
