Luxury infrared saunas by heater, wood and fittings
The makers' documents describe the luxury infrared saunas here on three points:
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Heaters. The three saunas here that Finnmark calls full spectrum pair Spectrum Plus™ heaters, which Finnmark says produce mid and far infrared, with Spectrum Carbon far-infrared panels; Finnmark's two Trinity models carry Spectrum Plus™ heaters without the carbon panels, plus a Harvia heater. SunRay's seven cabins here use carbon far-infrared heaters. Choose a Trinity if you want to splash water on hot stones as well as sit in infrared heat; otherwise compare full spectrum infrared saunas with far infrared saunas.
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Wood. Finnmark builds all five of its saunas here with a clear A-grade Canadian Western Red Cedar interior and a Thermal Plus™ aspen exterior. SunRay's figures put its three indoor cabins here in red cedar and its four outdoor cabins in Canadian hemlock, with an exterior that SunRay's manuals for them say to reseal or repaint every year. For a red cedar interior, rule out the four outdoor cabins.
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Fittings. Finnmark's manuals show a glass door in the front panel of each FD sauna here and a control panel that sets temperature, timer, lighting and music. On the FD-1 to FD-3, Finnmark's app has one "Sauna" switch, which turns the heaters on, and the multi-color LED ceiling light has a red setting, for which Finnmark publishes no wavelength. The two Trinity models have a Spectrum Red Light™ LED panel that Finnmark specifies at 650 nm, with color settings. For red light among the Finnmark saunas here, choose a Trinity for the dedicated panel and its published wavelength, or one of the FD-1 to FD-3 if the ceiling light's red setting will do; see also red light therapy saunas.
Luxury infrared saunas compared: heat, wood, size and seats
The 12 luxury infrared saunas in this collection, grouped as Topture lists them for indoor or outdoor use. Heat, wood, outside size and seats are each maker's own figures (SunRay's 2023 data sheet for the Roslyn; the Trinity models' stones per Bathing Brands, Finnmark's distributor), except the Roslyn's seats, which are Topture's listing because SunRay publishes no rating for it. Sizes are width × depth × height in inches, with the roof footprint added for the outdoor cabins. Prices are each sauna's lowest current price.
| Model |
Heat |
Wood |
Outside size (in) |
Seats |
From |
| Indoor saunas |
| Finnmark FD-1 | 1-Person Full-Spectrum Infrared Sauna |
Spectrum Plus™ and Spectrum Carbon infrared heaters (Finnmark: full spectrum) |
Red cedar interior, aspen exterior |
37 × 37.8 × 78.3 |
1 |
$4,695 |
| Finnmark FD-2 | 2-Person Full-Spectrum Infrared Sauna |
Spectrum Plus™ and Spectrum Carbon infrared heaters (Finnmark: full spectrum) |
Red cedar interior, aspen exterior |
48 × 43.5 × 78.3 |
2 |
$5,995 |
| Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Steam Sauna & Red Light |
Spectrum Plus™ infrared heaters and a 1.9 kW Harvia Vega Compact heater with stones |
Red cedar interior, aspen exterior |
48.8 × 48.8 × 83.1 |
2 |
$7,795 |
| Finnmark FD-3 Full Spectrum Infrared Sauna | 4-Person Infrared Sauna |
Spectrum Plus™ and Spectrum Carbon infrared heaters (Finnmark: full spectrum) |
Red cedar interior, aspen exterior |
See the product page |
3–4 |
$6,495 |
| Finnmark FD-5 Trinity XL 4-Person Hybrid Infrared & Steam Sauna & Red Light |
Spectrum Plus™ infrared heaters and a 4.5 kW Harvia KIP45B heater with stones |
Red cedar interior, aspen exterior |
74.8 × 63.8 × 83.1 |
3–4 |
$8,995 |
| Sunray Sequoia 4-Person Infrared Indoor Sauna 400K |
Ten carbon far-infrared heaters |
Western red cedar |
69 × 53 × 75 |
4 |
$4,298 |
| Sunray Bristol Bay 4-Person Indoor Infrared Corner Sauna 400KC |
Ten carbon far-infrared heaters |
Western red cedar |
65 × 65 × 75 |
4 |
$4,298 |
| Sunray Roslyn 4-Person Infrared Indoor Sauna 400KS |
Ten carbon far-infrared heaters |
Canadian red cedar |
72 × 54 × 76 |
4 (Topture's listing) |
$4,298 |
| Outdoor saunas |
| Logan 2-Person Outdoor Infrared Sauna |
Carbon far-infrared heaters |
Aged Canadian hemlock |
49 × 49 × 88; roof 69 × 66 |
2 |
$4,290 |
| Sunray Grandby 3-Person Outdoor Infrared Sauna 300D3 |
Seven carbon far-infrared heaters |
Canadian hemlock |
69 × 47 × 87; roof 79 × 61 |
3 |
$3,990 |
| Sunray Cayenne 4-Person Infrared Outdoor Sauna 400D3 |
Ten carbon far-infrared heaters |
Canadian hemlock |
79 × 52 × 87; roof 89 × 67 |
4 |
$4,290 |
| Pacific 4-Person Outdoor Infrared Sauna |
Carbon far-infrared heaters |
Canadian hemlock |
72 × 62 × 88; roof 88 × 82 |
4 |
$5,190 |
Size and placement narrow the 12 luxury infrared saunas here to a short list:
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One person, indoors: Finnmark rates the FD-1 for a single bather, so start there.
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Two people: choose Finnmark's FD-2 or FD-4 Trinity for a room indoors, or SunRay's Logan for the yard; Finnmark and SunRay rate these for two.
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Three or four people, indoors: shortlist Finnmark's FD-3 or FD-5 Trinity XL, rated for three to four, or SunRay's Sequoia or Bristol Bay, rated for four; for a room corner, look first at the Bristol Bay, the one here tagged as a corner sauna. Topture also lists the Roslyn for four.
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Three or four people, in the yard: choose SunRay's Grandby, rated for three, or its Cayenne or Pacific, rated for four.
Luxury infrared sauna power supply: 120 V or 240 V
The supply a room or yard can offer narrows the luxury infrared saunas here further:
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120 V: Finnmark's manuals require a dedicated 15 A, 120 V circuit, with no other devices on it, for the FD-1, the FD-2 and the FD-4 Trinity's infrared heaters, and Finnmark lists the FD-4's Harvia Vega Compact heater at 120 V and 15.9 A. SunRay specifies a dedicated 110–120 V outlet and 20 A for its three indoor cabins here and the Grandby, with the Bristol Bay and Roslyn figures on its 2023 data sheets. With only 120 V available, start with these seven.
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240 V: Finnmark's manual requires a dedicated 15 A, 240 V circuit for the FD-3, and SunRay says the Logan and Pacific need a dedicated 220–240 V circuit, listing 20 A for the Logan and 30 A for the Pacific; where no 240 V circuit can be added, rule out all three. For the FD-5 Trinity XL, Finnmark lists the Harvia KIP45B heater at 240 V and 18.8 A, marked "Electrician Required", and Bathing Brands lists that heater at 240 V single-phase, with 208 V three-phase operation also available. Without a 240 V circuit, keep the FD-5 only if its heater can have 208 V three-phase.
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Trinity heater wiring: Finnmark specifies no circuit for either Trinity's Harvia heater; its FD-4 and FD-5 manuals end the heater installation with "Provide Harvia heater installation manual to licensed electrician".
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Ask Topture first: SunRay's D3 manual says the Cayenne must be connected to a dedicated power outlet that no other appliance shares; confirm its voltage with Topture before the wiring is planned, and the supply for the FD-5 Trinity XL's infrared heaters too.
Your licensed electrician sizes the breaker and wire from the sauna's manual, the Harvia heater's manual for a Trinity model, and your local code.
Luxury infrared sauna placement, base and assembly
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Indoors: SunRay's manual says its indoor infrared saunas must be placed indoors in a dry area and asks for a fairly level surface, with a floor separator where the floor is damp. Finnmark's manuals describe each FD sauna as a self-contained, freestanding unit, never built into a structure, for a solid surface in a dry area with at least 3 inches of clearance above it and on all sides. The same manuals allow an FD sauna outdoors only under Finnmark's outdoor cover and an awning or overhang, on sturdy, dry, level ground, and say that placing it outside without the cover voids the warranty. For a yard with no awning or overhang, rule out the FD saunas.
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In the yard: SunRay's outdoor manuals put each cabin here on a level base such as a concrete pad or wood deck. Its D3 manual also allows pavers for the Grandby and Cayenne, with a waterproof barrier between the sauna floor and the surface where the site is damp or the floor sits on pavers or other ground-contact surfaces, and its D6 manual says to place the Logan and Pacific on a sturdy level surface, never directly on the ground. Plan the site around the roof as well as the walls: SunRay lists each outdoor cabin's roof footprint larger than the cabin itself.
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Assembly: SunRay says it pre-assembles each of its saunas at the factory and then breaks it down for shipping; the panels travel in cardboard boxes on a wooden pallet, and SunRay says the boxes fit through any door 24 inches or wider. By SunRay's account, two people lock the panels together with a Phillips screwdriver or a drill with a Phillips bit, with no special tools and no contractor needed. SunRay gives under an hour for the Sequoia and Bristol Bay and up to about two hours for its outdoor cabins here. Finnmark's FD saunas also arrive as prefabricated panels on a wooden pallet, shipped by Bathing Brands, Finnmark's distributor, but Finnmark's manuals say a minimum of two physically able people are required and state "Professional installation required". Shortlist a SunRay if you plan to put the sauna together yourselves.
Luxury infrared sauna temperature and warm-up
Finnmark's FD saunas can be set as high as 170°F, the maximum temperature setting in Finnmark's manuals (on the two Trinity models, the setting of the infrared control), though the manuals warn that room temperature, air flow and placement may keep the sauna from reaching it. Finnmark allows about 15–20 minutes to a comfortable temperature and 55–60 minutes to 170°F, noting that warm-up varies with the air temperature, and outdoors with the outdoor temperature. SunRay's manual for its indoor infrared saunas gives an adjustable range of 64–140°F, and SunRay says its outdoor cabins here reach up to 140°F. SunRay's manuals allow about 8–15 minutes of warm-up before a session in each of its cabins here except the Logan and Pacific, for which the D6 manual gives about 30. If you want a setting above 140°F, look at the Finnmark saunas: SunRay's figures for its cabins here stop at 140°F. If a short warm-up matters in the yard, choose the Grandby or Cayenne among SunRay's outdoor cabins.
Luxury infrared sauna prices and delivery
Prices in this luxury infrared collection start at $3,990 for SunRay's Grandby and reach $8,995 for Finnmark's FD-5 Trinity XL, with SunRay's cabins mostly toward the lower end of that span and Finnmark's mostly toward the upper end. Each price covers the whole sauna with its heaters, none of the 12 has a heater package to add, and freight within the contiguous United States is included on all of them. Delivery is to the curb, by freight, at an appointment agreed in advance, so raise site-access questions before you order.
Each of the 12 luxury infrared saunas here includes the applicable manufacturer's warranty, subject to the manufacturer's terms, and Topture assists with troubleshooting and warranty coordination as an authorized retailer of both makers, SunRay Saunas and Finnmark Designs. Financing, freight protection and expert support for these saunas are covered on the infrared saunas page.
Next steps for a luxury infrared sauna shortlist
Three routes lead on from the luxury infrared saunas here:
Reviewed October 2026