Finnmark FD-3 Full Spectrum Infrared Sauna | 3-4 Person | Cedar & Thermal Aspen
Finnmark FD-3 Full Spectrum Infrared Sauna | 3-4 Person | Cedar & Thermal Aspen
- Regular price
- $6,495.00
- Regular price
- Sale price
- $6,495.00
- Unit price
- per
Found it lower? We'll match it, before or after you buy.
Send us a link to the lower price. If it is the same model, new and in stock at an authorized U.S. online retailer, we match it. Already ordered? If it was lower on your order date, claim the difference within 30 days.
Excludes sale pricing, marketplace sellers and later price drops.
Read the full price match terms →Three to four people, a 67 inch bench, and one 240 volt circuit.
- Carbon panels and a Spectrum Plus element
- 240V on a dedicated 15 amp circuit
- 67 inch bench, three to four seats
$0 curbside delivery
Insured in transit
Couldn't load pickup availability
How does delivery work?
How does delivery work?
Free freight to the contiguous 48. On every Finnmark sauna and the SoulCold plunge. Accessories travel by parcel and follow the store threshold, shown at checkout before you pay.
Freight, not parcel. Saunas ship palletized, as flat panels rather than a finished room. The carrier books a window, someone signs, and delivery is curbside rather than inside.
Plan for the weight. An FD-1 crate is about 349 pounds and the barrels are over 1,000. Two people, and somewhere flat and dry to stage it.
Measure the route before the truck comes. A sauna arrives as panels, so the narrowest doorway, stair turn or lift matters more than the finished footprint. Tell us first if a truck cannot reach your door.
If it arrives damaged. Note it on the paperwork before signing, photograph it, and tell us within 48 hours. If a pallet is punctured, crushed or structurally damaged, refuse it and call us while the driver is there.
Where we ship. The contiguous 48. Canada is a flat freight charge. Puerto Rico, Alaska and Hawaii are quoted case by case. No P.O. boxes.
Not included: the electrical work. Every Finnmark sauna wants a dedicated circuit of the rating on its page, and the cabins are a two person build. Professional setup and assembly is available.
What does the warranty cover?
What does the warranty cover?
Lifetime on the Spectrum Plus elements. In home use, indoors and outdoors. That is the longest heater term on any brand we carry.
Ten years on the rest. The Spectrum Carbon heaters and the LED lighting run 10 years. The cabin and the controls run 10 years indoors, 5 outdoors. Remotes and the seat cushion are 1 year.
Not covered. Anything not fitted at the factory. The optional outdoor cover is warranted by material, 5 years on the roof and 10 on the side walls.
Residential only. Finnmark's terms are written for home use, so ask us to confirm cover in writing before you order for a gym, studio or rental.
Two conditions decide most claims. Assembled and placed as the manual requires, including 3 inches of clearance all round and a dedicated circuit. And damage found on delivery reported within 48 hours, with photographs, before assembly.
The Harvia stove and the plunge are separate. The stove inside a Trinity carries Harvia's warranty. The SoulCold has its own 1 year consumer term.
Who handles it. We file the claim for you. Call with your order number, the model, and the serial number from the plate under the bench. Ask and we will send you a free copy of the full warranty before you buy.
What if I need to return it?
What if I need to return it?
30 days from purchase. On a Finnmark sauna or the SoulCold plunge. We handle it, so you do not contact the manufacturer or the distributor yourself.
What a return costs. A restocking fee of up to 5% may apply on a change of mind, and we waive it whenever we are not charged ourselves. Consumables such as the SoulCold filter packs are not returnable once opened.
Who pays the return freight. You do on a change of mind, which on a palletized sauna is the real cost to weigh up. We pay the return freight when the cause is shipping damage or our error.
Original shipping. Not refunded on a change of mind return, and we never deduct the outbound freight from your refund.
Condition. New, unassembled and resalable in the original packaging with all parts. A sauna whose panels have been screwed together cannot go back.
Damaged on arrival. A different and faster process. Note it before signing, photograph it, and report within 48 hours before assembly. Refuse a punctured or crushed pallet and call us.
To start a return. Call or email with your order number. We issue the Return Authorization number, required before anything ships back, and send the address with it.
PRODUCT DESCRIPTION
Jump to 14 sections
The short answer
The Finnmark FD-3 is a three to four person full spectrum infrared sauna on a 240 volt circuit
The FD-3 is where the Finnmark range stops plugging into an ordinary wall socket. Six feet of cabin in Canadian cedar and Thermal Plus aspen, with carbon panels on both side walls, a Spectrum Plus Incoloy element and a near infrared LED overhead, on a bench 67 inches wide. It wants a dedicated 240 volt line, which is an electrician's visit rather than a bigger plug. Three things decide it: the floor, the ceiling and that circuit.
The room
78 × 52 in
Plan to 72 inches wide and 46 deep, the figure on Finnmark's drawing, plus the 3 inches of clearance they ask for on every side. Ceiling 82 inches.
The fit
3 to 4 people
Inside is 67.2 by 41.6 inches and 70.5 tall, on a bench 67.2 wide and 21.3 deep. Three sitting comfortably, four at a squeeze.
The power
240 V, 15 A
3150 watts on a dedicated 15 amp, 240 volt circuit through a NEMA 6-15 outlet. One circuit, but not one you already have.
Fit
Inside the Finnmark FD-3: a bench 67 inches wide, and 70.5 inches of headroom
Finnmark calls this one three to four person, on both the manual and the spec sheet, and the bench is why. At 67.2 inches it is 23 inches wider than the two person FD-2.
| Interior width | 67.2 in |
|---|---|
| Interior depth | 41.6 in |
| Interior height | 70.5 in |
| Bench | 67.2 in wide, 21.3 in deep, reversible, with an ergonomic backrest |
| Door glass | 23.6 in wide, 67.9 in high, 8 mm tempered |
| Room volume | 111.3 cubic feet |
Three adults sit across that bench without touching. The fourth seat is real but close, which is why Finnmark publishes a range rather than a number. The clear doorway measures about 21.5 inches on the plan view, narrower than the 23.6 inch glass panel itself.
Where the heat comes from
Finnmark's manual names each emitter and its part number in the replacement parts list. There is a Spectrum Plus Incoloy element at 350 watts, a carbon panel on the right wall at 350 watts and another on the left at 300, and a further infrared panel built into the bench skirt. Overhead sit the Spectrum LED ceiling lights, which give twelve colours and a near infrared setting.
Pairing carbon panels with a Spectrum Plus element is why Finnmark titles the FD-3 spec sheet a full spectrum sauna. The two Trinity models higher up the range run Spectrum Plus on every wall, with no carbon at all, and their sheets are titled combination sauna instead.
Before you order
Five checks before the Finnmark FD-3 ships
The circuit is the one that takes time. Book the electrician when you order, not when the pallet arrives.
- Floor, with the clearancePlan to 72 by 46 inches plus 3 inches on every side, which is 78 by 52. Finnmark's manual prints a slightly smaller cabin at 70.9 by 43.5; plan to the larger figure and you cannot be caught out
- Ceiling, with the clearance78.3 inches tall plus 3 inches above it is 81.3, so plan on 82 inches, which is 6 feet 10
- The route to the roomIt arrives flat on a pallet 78 by 36 by 73 inches, taller and heavier than the smaller cabins. Measure the narrowest doorway or stair turn against the pallet
- A 240 volt circuitDedicated 15 amp at 240 volts, NEMA 6-15. This is the step up from the FD-1 and FD-2, and it is the part to price before you order
- A solid, dry, indoor floorFinnmark asks for a solid surface in a dry area. The removable feet adjust for floors that are not quite level
If a number is borderline, compare the cabin against the rest of the Finnmark saunas before you decide.
Construction
Three things about the Finnmark FD-3 you cannot change later
Everything else on a sauna is adjustable. These are set the day it is made.
The two timbers
Inside is Canadian Grade A Clear Western Red Cedar, which Finnmark specifies for its resistance to mould, bacteria and fungus. Outside is Thermal Plus European Aspen, which Finnmark describes as treated with heat and steam and lists as FSC certified. The cedar is the surface you sit against; the treated aspen is the shell that faces the room.
The wall itself
Tongue and groove construction with insulated walls, and 8 mm tempered glass in the door. Insulation is not something that can be added to a cabin afterwards.
The emitters
Finnmark warrants the Spectrum Plus element for the life of the sauna and the carbon heaters for ten years. Those are the longest terms anywhere on the warranty sheet, and they are the parts that decide how a cabin ages.
Compare it against the other infrared saunas we carry, or narrow to the full spectrum saunas. If you are weighing infrared against a traditional stove, our infrared or traditional sauna guide covers the difference.
The decision that blocks the purchase
What the Finnmark FD-3 asks of your electrical panel
This is the real difference between the FD-3 and the two cabins below it. Not a bigger plug: a different circuit.
| Voltage | 240 VAC |
|---|---|
| Circuit requirement | Dedicated 15A circuit |
| Receptacle | NEMA 6-15, a 240 volt outlet |
| Power | 3150 W, which is 13.1 amps, about 87 percent of a 15 amp breaker |
| Supply | Power supply unit on top of the cabin, cord approximately 9 feet |
| Code | Install per the National Electrical Code, ANSI/NFPA 70. In Canada, per the applicable Canadian code |
A NEMA 6-15 is not an outlet most homes already have in a spare room. Running one is routine work for an electrician, and the cost depends on how far the run is from your panel and whether the panel has a free pair of slots. Ask for that quote before you order, because it is the only part of this purchase that is not a fixed price.
The wattage, and why one Finnmark document differs
Finnmark's dealer file and its dimension drawing both give 3150 watts at 240 volts, and the manual's electrical page gives 240 VAC on a dedicated 15 amp circuit through a NEMA 6-15. The 2023 spec sheet alone says 3350 watts at 230 volts, differing on both numbers. We follow the two documents that agree with the manual's voltage.
Running cost
What a Finnmark FD-3 session costs to run
Worked at Finnmark's 3150 watts and the US average residential rate of 18.34 cents per kilowatt hour, from the EIA Electric Power Monthly, June 2026. Your own rate is on your bill.
One hour session
$0.58
3.15 kilowatts for one hour, at 18.34 cents. Less once the cabin is up to temperature and the heaters begin cycling.
A month
$7.51
Three sessions a week, an hour each, about 13 hours a month.
A year
$90
The same three a week, every week. Roughly 156 hours.
Every input is above, so redo it with your own rate: kilowatts times hours times cents. Four people in the FD-3 costs the same to run as one.
Scope
What arrives with the Finnmark FD-3, and what it does not include
Finnmark's package contents list, and the items that are not on it.
Required before it runs
- A dedicated 240 volt, 15 amp circuitNEMA 6-15. An electrician's job, and the one to price before you order
- A second personThe manual's own warning is that a minimum of two physically able people are required for installation
Optional
- Professional setup and assemblyIf you would rather not build it yourself, see setup and assembly
- Finnmark FD-3 sauna cushionA fitted marine grade vinyl cushion for the bench
- Finnmark FD-3 sauna coverA fitted marine grade cover. Finnmark describes it as limited weather protection, not an outdoor rating
- Finnmark Curve cedar backrestA free standing S shaped backrest, taller than the one already fitted
| Panels | Bottom, top, back, front, left, right |
|---|---|
| Door | Glass door and handle with screws |
| Seating | Bench support, bench top, ergonomic backrest |
| Heating | Infrared heater panels, Spectrum LED near infrared ceiling lights |
| Control | Controller 2.0, LCD touchscreen with Bluetooth audio |
| Audio | 6 inch HiFi speaker pair |
| Electrical | Power supply unit, power cable, heater cable, floor cable, interior heater connections with a wood cover |
| Fixings | Screws, removable adjustable feet for uneven surfaces |
| Paperwork | ETL certification, limited warranty |
Freight to the lower 48 carries no delivery charge. Canada is quoted at a flat rate and Puerto Rico, Alaska and Hawaii are quoted case by case, so ask us before you order to either.
Setup
Assembling the Finnmark FD-3
It arrives as panels and goes together without specialist tools.
The manual's tool list is a screwdriver and a level. Panels lock to each other and are fixed with two screw lengths Finnmark supplies. The order is back panel, left side, bench support, right side, then the front wall and the top. The heater cable connects from the bench support to a connector on the back wall, and the manual notes that the interior and exterior receptacles on the right panel are not used during assembly.
Finnmark's own warning on this model is blunt and worth repeating: a minimum of two physically able individuals are required for installation, and the manual says in capitals not to attempt it without proper professionals or without proper tools and safety equipment. At 488 pounds of panels this is the point in the range where paying for assembly starts to make sense. We do not publish an assembly time, because Finnmark does not state one.
Before the first session
Wipe the inside down with a damp cloth to clear any sawdust. Then run the cabin at its maximum temperature for an hour, two to four times, to burn off factory dust before anyone uses it. The serial number plate, which you will want if you ever make a warranty claim, sits underneath the bench.
Delivery day
What to check when your Finnmark FD-3 is delivered
It moves by freight at 536 pounds and comes off the truck at the curb. Ten minutes of checking there is the difference between a replacement panel and an argument.
Before delivery
Have your second person booked for the day itself, and the electrician's work finished before the pallet arrives.
At the truck
Walk around the pallet before you sign. Photograph any crushed corner, tear or water mark, and write what you see on the delivery paperwork before you sign.
Before you build
Open the crate and check the glass door and each panel face while the packaging is still there, and tell us straight away if anything is marked. Our return policy sets out how long you have.
Reference
Finnmark FD-3 full spectrum infrared sauna specifications
| Capacity | 3 to 4 person |
|---|---|
| Exterior | 70.9 in W x 43.5 in D x 78.3 in H per the manual. Plan to 72 x 46, the figure on Finnmark's drawing |
| Interior | 67.2 in W x 41.6 in D x 70.5 in H |
| Electrical | 240 VAC, 3150 W, dedicated 15A circuit, NEMA 6-15 |
| Emitters | Spectrum Plus Incoloy element, carbon panels left and right, plus a bench skirt panel |
| Heat-up | Finnmark's spec sheet claims 170 degrees in under an hour |
Full specification tables
| Bench | 67.2 in W x 21.3 in D, reversible |
|---|---|
| Door glass | 23.6 in W x 67.9 in H, 8 mm tempered |
| Door opening | About 21.5 in clear, from Finnmark's plan view |
| Room volume | 111.3 cubic feet |
| Clearance required | 3 in minimum, top and all sides |
| Product weight | 488 lb (221.35 kg) |
| Shipping weight | 536 lb (243.12 kg) |
| Pallet | 78 in x 36 in x 73 in |
| Placement | Indoor, freestanding, solid dry floor |
| Interior wood | Canadian Grade A Clear Western Red Cedar |
|---|---|
| Exterior wood | Thermal Plus European Aspen, heat and steam treated, FSC |
| Wall | Tongue and groove, insulated walls |
| Spectrum Plus emitter | Incoloy, 240V, 350W |
| Side emitters | Carbon, 240V, 350W right and 300W left |
| Bench | Skirt with an infrared panel built in |
| Lighting | Spectrum LED ceiling lights, 12 colours plus near infrared |
| Glass | 8 mm tempered |
| Control | Controller 2.0, LCD touchscreen, Bluetooth audio |
| Maximum temperature | 170 F |
| Voltage | 240 VAC |
|---|---|
| Power | 3150 W, from the dealer file and the dimension drawing. 13.1 amps, about 87 percent of a 15 amp breaker |
| Circuit | Dedicated 15A |
| Receptacle | NEMA 6-15 |
| Model and part | FD-3, part number FD-KN003 |
| Certification | ETL Listed to UL-875, and cETL to CAN/CSA-C22.2 No. 164. The FD-3 is named on both certificates |
| Warranty, home use | Lifetime on the Spectrum Plus element, 10 years on the carbon heaters, the cabin, the controls and the LED, 1 year on the remote. The sheet's preamble limits cover to residential use, and states terms can be changed on a quote or invoice. We will send you the full warranty document free on request |
| Delivery | Freight, no delivery charge to the lower 48. Canada quoted flat, PR, AK and HI by quote |
| Assembly | Screwdriver and level. Two people minimum. Finnmark publishes no assembly time |
The range
The Finnmark FD-3 against the rest of the Finnmark indoor rooms
Three infrared only cabins, then two that add a traditional stove. This model is the largest of the infrared only three, and the first to need 240 volts.
| FinnmarkFD-1 | FinnmarkFD-2 | FinnmarkFD-3You are here | FinnmarkFD-4 | FinnmarkFD-5 | |
|---|---|---|---|---|---|
| Capacity | 1 person | 2 | 3 to 4 | 2 | 4 |
| Width | 37 in | 48 | 72 in | 48.8 | 75 |
| Depth | 37.8 in | 43.5 | 46 in | 48.8 | 64 |
| Height | 78.3 in | 78.3 | 78.3 in | 83.1 | 84 |
| Bench width | 33.3 in | 44.3 | 67.2 in | 44.5 | 70.5 |
| Carbon panels | Yes | Yes | Yes | No | No |
| Traditional stove | No | No | No | Harvia 1.9 kW | Harvia 4.5 kW |
| Voltage | 120 V | 120 | 240 V | 120 | 240 |
| Circuits | One | One | One | Two | Two |
| Receptacle | NEMA 5-15 | 5-15 | NEMA 6-15 | 5-15 | 6-15 |
| Shipping weight | 349 lb | 441 | 536 lb | 485 | 654 |
The FD-3 is the one to pick when three or four people will actually use it and you are willing to run a 240 volt line. Below it, the Finnmark FD-2 seats two on the household circuit you already have, and the Finnmark FD-1 seats one. Above it the two Trinity models are a different product rather than a bigger one, adding a Harvia stove and stones so you can raise steam, on two circuits instead of one.
The stove inside a Trinity is one we stock on its own: the Harvia Vega Compact 1900 on the FD-4 and the Harvia KIP45B on the FD-5.
The rest of the range: Finnmark FD-4 Trinity, Finnmark FD-5 Trinity XL, Finnmark SoulCold.
Evidence
The Finnmark FD-3 low EMF reading, and what the certificates say
Two documents on this sauna are worth reading in full. Here is what each actually says.
The low EMF survey, in full
A third party laboratory in Tempe, Arizona measured Finnmark's Spectrum+ heaters in December 2019 under project PR108242, at three positions on each heater. With everything switched off, the room itself read 0.5304 milligauss. Running, the readings ran from 0.6881 milligauss up to a maximum of 1.1708 milligauss at the third position. So the heater added between 0.2 and 0.64 milligauss over what the room was already producing. The laboratory describes every result as magnitudes lower than the ICNIRP Occupational 2010 test limit.
The 1.1708 maximum is the laboratory's own headline figure, from position three; position one at 100 Hz read 0.7328. Three caveats: the limit is the occupational one rather than the general public one, the survey tested heaters rather than an assembled cabin, and pages four and six of the log name the customer as Influence Sauna rather than Finnmark Designs.
What the certificates actually say
The FD-3 is named on both Intertek certificates we hold, as ETL Listed to UL-875 and cETL to CAN/CSA-C22.2 No. 164. Those two certificates name the FD-1, FD-2, FD-3 and FD-4 and no others, which is why we do not call the FD-5, FD-6 or FD-7 listed. Separately, Finnmark identifies its Spectrum Plus elements as UL component recognised under file E65554, which covers sheathed heating elements as a component rather than a finished sauna. That record names the tradename BKR, not Finnmark and not Spectrum Plus. We do not describe any Finnmark cabin as a UL listed sauna, because that is not what that record says.
What we do not have
No owner reviews of our own yet, because this is a new listing for us, and no independent test of a finished FD-3 cabin as opposed to its heaters. Finnmark publishes a logged heat-up run for the two person FD-2 but not for this model, so the heat-up figure here stays the manufacturer's general claim.
Buyer questions
Finnmark FD-3, questions buyers ask before ordering
Does the Finnmark FD-3 need a 240 volt circuit?
Yes. The manual gives 240 VAC on a dedicated 15 amp circuit through a NEMA 6-15 receptacle, which is a 240 volt outlet rather than the three pin socket already on your wall. That is the single real difference between this cabin and the FD-1 and FD-2 below it. Running the line is routine work, but price it with an electrician before you order, because the cost depends on the distance from your panel and whether the panel has free slots.
How many people fit in the Finnmark FD-3?
Finnmark calls it three to four, on both the manual and the spec sheet, and we publish the range rather than rounding it up. The bench is 67.2 inches wide and 21.3 deep, with 70.5 inches of headroom. Three adults sit across it without touching; the fourth is real but close. The dealer file alone says four, which is the optimistic reading of the same cabin.
How big a room does the Finnmark FD-3 need?
Plan to 78 by 52 inches of floor and 82 inches of ceiling. That is Finnmark's drawing figure of 72 by 46 plus the 3 inches of clearance the manual asks for on every side and above, and 78.3 inches of cabin height plus 3. Finnmark's manual prints the cabin slightly smaller, at 70.9 by 43.5, so planning to the larger figure means neither document can catch you out.
How hot does the Finnmark FD-3 get, and how long does it take to heat up?
The controller tops out at 170 degrees. Finnmark's spec sheet claims 170 degrees in less than one hour, and we quote that as their figure rather than ours, because unlike the FD-2 there is no logged test for this model. Real heat-up depends on how cold the room is to begin with, so a cabin in an unheated garage in winter will take longer than one in a spare bedroom.
Can I put the Finnmark FD-3 outside or on a covered porch?
It is built as an indoor sauna. The manual says the cabin contains electronics and is intended for indoor use, and that placing it outside without a cover will void the warranty. Finnmark's fitted cover is described as limited weather protection, not full protection. A basement, garage, spare bedroom or new extension suits it. For a covered porch, call us first and we will go through the specifics.
What is the difference between the carbon panels and the Spectrum Plus element?
Two different emitter technologies in the same cabin. The carbon panels on the side walls are flat and cover a wide area at a lower surface temperature. The Spectrum Plus Incoloy element is the one Finnmark warrants for the life of the sauna, against ten years on carbon. Having both is what makes this a full spectrum cabin, where the Trinity models run Spectrum Plus on every wall with no carbon at all.
What is the warranty on the Finnmark FD-3?
Lifetime on the Spectrum Plus element, ten years on the carbon heaters, the cabin, the controls and the LED lighting, one year on the remote, and nothing on parts not fitted at the factory. The full terms, including the residential use condition, are in the specification table above. Ask us and we will send you the warranty document free before you buy.
How is the Finnmark FD-3 delivered, and will it fit through my door?
By freight, with no delivery charge to the lower 48, as flat panels on a pallet 78 by 36 by 73 inches. That pallet is the measurement that matters for a stair turn, not the 72 inch finished width, and it is taller than the pallets for the smaller cabins. The driver brings it to the curb at 536 pounds, so plan a second pair of hands and somewhere flat and dry to stage it. Canada is a flat quote; Puerto Rico, Alaska and Hawaii are quoted case by case.
Am I buying from an authorized Finnmark dealer?
Yes. Recovery Room Direct is a factory authorized Finnmark Designs dealer, so your FD-3 carries the full factory warranty rather than a reseller term. It also means the specification here comes from the manufacturer's own documents rather than from copied listings. Finnmark sets a minimum advertised price and enforces it, so if you find an authorized dealer advertising below it, our price match covers it.
One last thing
Before you order the Finnmark FD-3: the ceiling and the 240 volt line
Two measurements and one circuit decide this purchase. Tell us the room, the ceiling height and how far your panel is from the spot, and we will tell you whether the FD-3 fits or whether the FD-2 suits the space better.
ChaddySauna specialistMon to Sat, 9am to 6pm ET
