Finnmark FD-4 Trinity 2-Person Hybrid
Retailer price at Topture, last checked 30 Oct 2026. Price may vary. In stock at the seller when checked.
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Our take
The Finnmark FD-4 Trinity 2-Person Hybrid is a 2-person hybrid cabinet for indoor use, sold by Topture for $7,795 when we last checked on 30 Oct 2026. Among 28 traditional and hybrid indoor saunas we list, its spec score ranks 1 of 28, and its price compares with a $7,947 median for the group.
Needs a dedicated 120V circuit. Budget for an electrician and, where required, a permit. Its published size leaves about 8.3 sq ft of footprint per seat.
Strengths
- Priced well for its specs: $7,795 against a $7,947 median for traditional and hybrid indoor saunas
- Warranty: 10 years on the cabin indoors, lifetime on the infrared heaters; Harvia stove under Harvia's warranty
- Free shipping, per the seller listing
Trade-offs
- Needs its own dedicated 120V 20A circuit
Good fit for
- Households of up to 2 at a time
- People who want hot, steamy sessions: up to 170 °F with water on the stones
Consider another option if you're
- Families or groups of three or more
- Anyone who can't add a dedicated 20A circuit
- Anyone who wants a plug-in setup or gentler air heat: look at infrared models
- Anyone planning to install it outside: it isn't rated for outdoor use
Specifications
| Brand | Finnmark |
|---|---|
| Model | FD-4 Trinity 2-Person Hybrid |
| Type | Hybrid · indoor cabinet |
| Price | $7,795 last checked 30 Oct 2026 |
| Seller | Topture (affiliate link) |
| Availability | In stock at the seller when checked |
| Shipping | Free, per the seller listing |
| Seats | 2, per the maker |
| Exterior W × D × H | 49 × 49 × 83 in source |
| Footprint | 16.5 sq ft |
| Interior size | Not published on the listing |
| Heating | 1.9 kW stove plus infrared panels |
| Maximum temperature | 170 °F |
| Electrical | 120V, 15.9A · 1,900 W source |
| Connection | NEMA 5-15P for the infrared; the Harvia stove is hardwired by an electrician |
| What that means | Needs a dedicated 120V circuit |
| Wood | Red cedar inside, thermally modified aspen outside |
| Warranty | 10 years on the cabin indoors, lifetime on the infrared heaters; Harvia stove under Harvia's warranty source |
| Indoor or outdoor | Indoor |
| Listed features | 1.9 kW Harvia stove plus 1,750 W of infrared, Red light |
Interior size, heater model (for infrared) and the largest delivered piece aren't on the seller's listing. Check with the seller before you buy.
Score breakdown
How the 74 spec score splits by category, each compared with similar saunas. Full method.
| Construction & durability | Not published, left out |
|---|---|
| Value | 7.1 / 10 |
| Heating | 3.8 / 10 |
| Warranty & support | 10.0 / 10 |
| Installation | 10.0 / 10 |
| Features | Not scored |
| Appearance | Not rated yet |
| Space & capacity | 6.1 / 10 |
Dimensions and installation
- Power. Needs a dedicated 120V circuit (120V, 15.9A · 1,900 W). Have a licensed electrician confirm your panel and wiring before you order.
- Floor space. The maker doesn't publish clearances here, so Fit Check assumes 3 in at the sides and back: plan on about 55 × 52 in of floor.
- Ceiling. At 83 in tall plus our 6 in allowance above, you'd want a ceiling of at least 89 in. Confirm with the manual.
- Doorways. The listing doesn't give the largest delivered piece, so measure your narrowest door or gate and ask the seller.
Running cost estimate
At its rated 1,900 W, four 75-minute sessions a week (warm-up included) at the U.S. average of 18.3¢ per kWh (EIA) come to about $8 a month, or $91 a year. This is an estimate, not a quote: heaters cycle off once hot, so most owners pay less. Use your own rate in the True Cost calculator.
Warranty and support
10 years on the cabin indoors, lifetime on the infrared heaters; Harvia stove under Harvia's warranty. source Orders, delivery and warranty claims go through Topture, the seller, and Finnmark, the maker. Read the written warranty before you buy, because outdoor use and self-installation can change the terms.
Check current price & availability
Retailer price at Topture · last checked 30 Oct 2026 · price may vary
- Shipping and delivery details on the seller's page ↗
- Compare similar saunas
- See if it fits my space
- Estimate the five-year cost
Affiliate link: Cedar Scout may earn a commission if you buy through it. Commissions never change our scores or rankings.
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Related guides
Sources
Price, size, power and warranty come from the seller's listing here, last checked 30 Oct 2026. Prices change often; the seller's page is the final word. Recall status: not part of the 17 Sept 2026 CPSC sauna recall, the recall we checked. We haven't tested this sauna in person. Electrical details are preliminary and don't replace a licensed electrician.
Independent by design. We order saunas with our published method. Cedar Scout may earn a commission when you buy through affiliate links on this page. Commissions never change which saunas appear, their scores or their order. How we earn money.