Finnmark
FD-5 Trinity XL Hybrid Infrared & Steam Sauna
A 4-person hybrid cabin combining a 2700W full-spectrum infrared array with a 4.5kW Harvia KIP traditional heater, backed by a stated 10-year warranty.
$8,995$10,000
Check PriceFinnmark
FD-4 Trinity Hybrid Infrared & Steam Sauna
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.
- Capacity
- 2 people
- Installation
- indoor
- Dimensions
- Exterior 48"W x 48"D x 83"H; interior 44.25"x45.5"x75.5"
- Power
- 120V, 15-20A, NEMA 5-15P plug
$7,795$9,985
Check Latest PriceWe may earn a commission if you purchase through this link, at no extra cost to you. Price and availability are set by The Sauna Place and subject to change. Information last verified September 11, 2026.
FD-4 Trinity Hybrid Infrared & Steam Sauna
$7,795
Who It's For
- Households that want both a quick infrared session and a full steam sauna in one cabin
- Buyers without 240V service available
Key Specifications
- Heaters
- Spectrum Plus infrared array (1750W, max 170°F) plus Harvia Vega Compact 1900 traditional stove (1.9kW, max 190°F)
- Cabin Material
- Western Red Cedar interior, Thermo-Aspen exterior
- Exterior Dimensions
- 48"W x 48"D x 83"H
- Weight
- 437 lbs
Key Features
- Independently controlled infrared and traditional steam heating in one cabin
- 192-diode red light therapy panel (650nm)
- 5" touchscreen controller with Bluetooth and marine-grade speakers
- Plugs into a 120V/15-20A outlet — no 240V service required
Installation
Indoor installation; plugs into a standard 120V/15-20A outlet, no dedicated 240V circuit required
Warranty
Authorized dealers list this model under Finnmark's standard limited warranty; the specific term is not stated on every listing — confirm current coverage with your dealer before purchasing.
See how the FD-4 Trinity Hybrid Infrared & Steam Sauna stacks up against alternatives in our Best Home Saunas of 2026 comparison.
Pros
- + Genuinely dual-mode (infrared and traditional steam) on a single 120V circuit
- + Red light therapy included rather than a separate purchase
- + NASA-tested low-EMF infrared panels, ETL certified
Cons
- − 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
Alternatives to Consider
Editor's ChoiceGolden Designs
Forssa Edition 3-4 Person Sauna (GDI-7203-01)
5.0(1)
A 3-4 person traditional steam sauna with Canadian Hemlock exterior and Red Cedar interior, built around an 8kW electric stove.
$8,999
Check PriceGolden Designs
Nora 2-Person Outdoor Hybrid Sauna (GDI-8222-01)
An outdoor hybrid cabin combining a Harvia traditional stove with near-zero-EMF infrared panels, powered from a single 240V circuit.
$14,999$18,999
Check PriceFrequently Asked Questions
How much does a home sauna cost?
Compact 1-person infrared cabins start under $2,000, while larger family-size cabins and traditional wood-fired units can run $6,000–$8,000 or more.
Do I need an electrician to install a home sauna?
Compact infrared cabins often run on a standard household outlet, but larger infrared cabins and most traditional heaters require a dedicated circuit installed by a licensed electrician.
Indoor or outdoor — which should I choose?
Indoor cabins are faster to install and keep the sauna close to living space; outdoor cabins free up interior square footage but need a weatherproof build and foundation.