SKU:FD-KN005
Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo - 4 Person Sauna
Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo - 4 Person Sauna
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Free shipping · On this item · contiguous US
Delivery is typically 5–15 business days after it ships. Made-to-order units are confirmed before the order is released.
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Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo - 4 Person Sauna
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PRICE PROMISE
PRICE PROMISE
Fair Pricing, Every Time
As an authorized dealer, our prices reflect each manufacturer's approved pricing. That means the price you see here follows the manufacturer's own pricing.
Found a Lower Price?
If you've found the identical product advertised for less by another authorized dealer, email info@plungeintosaunas.com with a link. We'll review it, and if it's a genuine authorized listing we'll match it where the manufacturer permits.
Listings from unauthorized sellers, marketplaces, refurbished or open-box units, and clearance items aren't eligible — those products typically carry no manufacturer warranty.
Why Buying Authorized Matters
Authorized purchases come with full manufacturer warranty coverage, genuine parts, and factory support. A cheaper unit from an unauthorized seller usually has none of that.
SHIPPING POLICY
SHIPPING POLICY
Shipping Information
Most in-stock orders ship within 3–5 business days, with delivery typically taking 5–15 business days after shipment. Sauna cabins and larger units are often made to order and may require additional lead time, which we'll confirm before you buy.
Large items ship by freight carrier, curbside delivery. Cabins frequently arrive on two or more pallets. The carrier will contact you to schedule an appointment, and someone must be present to receive and inspect the shipment. Curbside means the driver delivers to the end of your driveway — moving, unpacking, assembly, and installation are not included.
Inspect your shipment before signing. Count the pallets, note any damage on the delivery receipt, take photos, and contact info@plungeintosaunas.com within 48 hours. Keep all packaging for up to 60 days in case the carrier needs to inspect it.
Delivery dates are estimates and may vary due to carrier delays, weather, or supplier lead times.
RETURN POLICY
RETURN POLICY
Return Information
Return requests must be approved in writing before any item is sent back — return addresses vary by supplier, and unauthorized returns may be refused or ineligible for refund.
The return window is 30 days on most brands. It runs from the delivery date on most lines, and from the purchase date on our Bathing Brands lines (Harvia, HUUM, SaunaLife, Saunum, Delta, Kohler, ThermaSol, Bathology, Cozy Heat, Rento, Hukka, EOS, AromaMist, Narvi, Finnmark, Kolo, 4 Living and Hotass Saunas).
Eligible products must be unused, uninstalled, unassembled, complete, and in original packaging. You are responsible for return shipping on a change-of-mind return. Fees vary by brand — some lines charge a restocking fee of up to 25%, while the Bathing Brands lines charge no restocking fee, only a re-boxing fee of roughly $20 to $50 if the original packaging is not returned intact.
If the item arrived damaged or a manufacturer error is at fault, return shipping is covered for you.
Custom, made-to-order, special-order, clearance, installed, assembled, or final-sale products may not be returnable.
Damaged, missing, or incorrect items must be reported to info@plungeintosaunas.com within 48 hours of delivery.
Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo - 4 Person Sauna
Enjoy the benefits of Infrared Sauna Bathing at 170-degrees Fahrenheit combined with a true Finnish sauna!
Welcome to the ultimate sauna experience. With the Trinity XL 3-IN-ONE from Finnmark, you will expand your wellness in a way like never before. This sauna combines all the benefits of Finnmark’s UL listed Spectrum Plus infrared heaters, traditional 4.5kW sauna heater, and Spectrum Red Light™ Therapy all in one beautiful sauna cabin. This culmination of the perfect sauna experience will remind you that less is not always more. Why settle when you can experience it all? Give yourself the gift of self-care and wellness with Finnmark Design's Trinity XL 3-IN-ONE home sauna.
The Trinity Combination Sauna is the only sauna available that combines Finnmark’s UL listed Spectrum Plus infrared heaters combined with a traditional sauna heater that uses vulcanite sauna stones to radiate and even heat and allow you to splash a ladle of water onto the rocks for steam. Spectrum Red Light™ Therapy rounds out this multi-dimensional home wellness system.
Don’t compromise! Finnmark’s FD-5 Trinity is the only combination sauna with true UL listed infrared heater panels together with a traditional sauna heater. Furthermore, the IR panels, red light therapy. Get all the benefits of infrared combined with traditional rocks with steam.
Get hot fast! The only IR heaters that have passed the rigorous tests from Underwriter Laboratories used in tandem with a traditional steam sauna stove. Short wave far-infrared delivers deep, penetrating heat and makes you sweat 25 times more than carbon panel heaters.
The traditional 240V/1PH 4.5kW sauna heater lets you splash some water onto the rocks for a luxurious steam sauna experience. Reap the benefits and the intensity only offered by a steam sauna.
The Spectrum Red Light™ panel adds 650nm red light plus color chromotherapy lighting to every session. It’s a perfect enhancement to your sauna wellness ritual.
Traditional 4.5kW Steam Sauna Heater Included
Features & materials
- Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters.
- Spectrum Red Light™ Therapy. 192 diode LED panel producing 650nm red light combined with chromotherapy for those days you need a little love.
- Antimicrobial Western Canadian cedar interior that protects against mold, bacteria and fungus.
- Thermal Plus™ Aspen exterior that will never rot, warp, decay or chip. Making FinnMark Designs full spectrum infrared saunas one of the most durable and longest lasting saunas on the market.
- 3-IN-ONE Combination. Compromise no more. Introducing the only combination sauna with true UL listed infrared heaters combined with a traditional heater that produces high heat steam. Get all the benefits of infrared combined with traditional rocks with steam all while enjoying the glow of a Spectrum Red Light™ LED panel.
- Built-in LCD touchscreen controller with Bluetooth audio.
- Audio with 6" HiFi marine grade speakers, 8mm tempered glass for the ultimate thermal retention.
- Extra large two-tier bench system
- Low EMF sauna tested by a NASA award winning testing facility.
- High Emissivity infrared heaters
- Wall-mounted
- Stainless steel construction
- 4.5kW
- For sauna rooms from 100 to 210 cu. ft.
- Requires a minimum of 50lbs of stones (1 box-AC3000)
- Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply).
- Built-In controls
- Available in 240V/1PH operation or 208V/3Ph operation
- Industrial grade, serviceable heating elements
- Exceptionally large rock capacity
- UL listed
- Direct rock-to-heating element contact
- Designed, engineered, and made in Finland
- Dimensions: 16"W (406mm) x 11"D (279mm) x 24"H (609mm)
- 2-Year Warranty (Consumer Use)
- Manufacturer's Note: Sauna heater stones are significant to the unit's safety. In order for the warranty to remain valid, the user is responsible for proper maintenance.
- The Spectrum Plus incoloy heaters warm you from the inside out for a deep, satisfying sweat.
- The natural heat produced by the Spectrum Plus heaters is designed to achieve a more controlled hot climate much like a traditional sauna without the unbearable heat temperatures. As a result, you're able to work up the best possible sweat in the least amount of time.
- Full Spectrum Sauna combination of long-wave Spectrum Carbon 360 infrared panels with UL-listed short-wave Spectrum Plus™ infrared panels. This combination provides higher temperatures, full body coverage, deeper penetration, and better experience than any other sauna.
- Unwind and relax with every infrared sauna session.
- Athletes can enjoy a relaxing warm-down after training.
Shipping & delivery
Shipping cost: Shipping on this item is free within the contiguous US.
Most in-stock orders ship within 3–5 business days of confirmed payment, and delivery is typically 5–15 business days after shipment. Made-to-order saunas and custom-configured rooms need production time on top of that, which we confirm before the order is released. We ship within the contiguous United States.
Large items ship LTL freight on a pallet, delivered curbside — to the curb or the end of your driveway, often from a trailer up to 53 feet long. Curbside does not include unpacking, assembly, installation or electrical connection. The carrier calls to book an appointment and someone must be there to receive the shipment. Tell us at the time of order if access is limited — narrow or rural roads, steep driveways, gated communities — and ask for liftgate service if you have no dock or forklift.
Inspect the shipment before the driver leaves and before you sign. Count the cartons and pallets against the paperwork, check glass doors and panels, write any damage or shortage on the Delivery Receipt, and photograph it. Email info@plungeintosaunas.com within 48 hours of delivery with your order number, photos and the noted receipt — the same window covers concealed damage and missing items. Keep the packaging while a claim is open.
Cancellations & returns
Cancel before the order has been submitted for fulfillment and it is refunded in full — email info@plungeintosaunas.com with your order number. After that point manufacturer, carrier, return-freight or restocking fees may apply. Every return must be approved by us in writing first: products ship from different manufacturer warehouses, so the correct return address varies, and anything sent back without authorization may be refused.
Return requests are made within 30 days under our general policy; some brands run that window from the date of purchase rather than delivery. Items must be unused, uninstalled, never heated or filled, complete in their original packaging and in resalable condition. Restocking fees run up to 25% depending on the manufacturer, while Harvia, HUUM, SaunaLife, Saunum, Narvi, ThermaSol, Delta, Kohler and Mr. Steam charge no restocking fee at all, only a re-boxing fee of roughly $20–$50 if the original packaging does not come back intact. On a change-of-mind return you pay return shipping and the original outbound shipping is not refunded.
If the item arrived damaged or a manufacturer error is at fault, return shipping is covered for you. Custom, made-to-order and special-order items already in production, clearance and open-box items, heaters that have been wired or fired, tubs and generators that have been filled, assembled or heated rooms, opened consumables and all Canadian Timber Collection products cannot be returned. Ask us before you buy if you are unsure.
Complete your setup
Total for 1 item $8,995.00
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Finnmark FD-5 Trinity XL Infrared & Steam Sauna Combo -
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- Free shippingOn this item · contiguous US
- Authorized dealerFull manufacturer warranty
- Sized by a specialistRoom, heater and install checked
- Talk to a human(888) 739-3321
Model specifications
The figures that decide the buy. The complete sheet ships with the manual.
- Model
- FD-5
- External Materials
- Thermo-Aspen
- Interior Materials
- Western Canadian Cedar
- Volts
- 240
- IR Watts
- 3150
- Amperage
- 15
- Plug Type
- NEMA 6-15P
- Maximum Temperature
- IR 170° F | Traditional 190° F
- Interior Dimensions
- 71"W x 57.5"D x 75.5"H
- Exterior Dimensions
- 75"W x 64"D x 83"H
- Room Volume
- 130 cu. ft.
- Door Dimensions
- 23.625"W x 68.875"H
Manufacturer figures. The complete specification sheet, clearances and wiring details are in the manufacturer's installation manual.
Everything in the box
Exactly what ships with this model, straight from the manufacturer's packing list.
- Bottom Panel
- Top Panel
- Back Panel
- Front Panel
- Left Panel
- Right Panel
- Glass Door
- Bench Support
- Bench Top
- Heater Cable
- Floor Cable
- Screws
- Power Supply Unit
- Power Cable
- Interior Heater Connections with Wood Cover
- Door Handle (2 Screws)
- Infrared Sauna Heater Panels
- Harvia KIP Series B 4.5kW Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm sauna stones (44 lbs)
- Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply).
- LED Red light therapy panel at 650nm plus color chromotherapy
- V2 LCD Controller 5" touchscreen controller with Bluetooth
- ETL Certification
Sauna stones, water treatment and accessories are sold separately unless listed above.
Setting up
What happens between checkout and your first session.
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The FD-5 ships at 654 lbs including its 48 lb pallet, crated 36"W x 80"D. Curbside delivery by appointment, palletized. The driver's job ends at ground level — they lower the pallet and leave it at the end of your driveway, so line up two people and a clear path to move the pieces from there.
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The infrared side draws 3,150 W at 240 V (15 A) and plugs into a NEMA 6-15 receptacle. The included Harvia KIP45B 4.5kW heater (240 V, 18.8 A) is wired separately on its own dedicated 240 V circuit, with the breaker and wire gauge set by Harvia's manual. Most homes need a licensed electrician to add both, and the heater hookup is a licensed electrician's job.
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Its footprint is 75"W x 64"D x 83"H. It is an indoor sauna, so set it on a level, solid floor in a dry room that carries the loaded weight, with room for the glass door to swing open and the heater clearances from the Harvia manual.
Not sure your site is ready? Call (888) 739-3321 before you order and we'll walk through it with you.
Talk it through with a sauna specialist
Room size, heater match, electrical, delivery access — a ten-minute call answers most of it. No pressure, no sales script.
Daily, 8 AM to 7 PM Pacific. Or email info@plungeintosaunas.com any time.
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Sizing & fit
We'll check the footprint, ceiling height and heater match for your space. -
Electrical & site
What your electrician needs to know before you order. -
Delivery
Lead time, freight access and what to expect on delivery day.
What happens next
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We check the order
A sauna specialist reviews the configuration, the delivery address and freight access, and usually calls you to confirm it before the order is released to the manufacturer. Anything that needs changing gets changed before it ships.
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Confirmation and lead time
You get an email with the confirmed lead time, the manuals for your unit and what to prepare on site. Tracking follows within 24 hours of it leaving the warehouse.
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Delivery day and after
The freight carrier calls to book a curbside appointment — count the cartons and note any damage on the delivery receipt before you sign. Assembly, electrician and warranty questions after that come to us, and we handle them with the manufacturer on your behalf.
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Frequently Asked Questions
Yes! Shop Pay Installments may be available at checkout, allowing you to split your order into installment payments, with interest-free options on eligible orders and monthly plans from 0–36% APR. Just select Shop Pay at checkout to see your options.
Warranty coverage varies by manufacturer and product. Please refer to the product page or included documentation for specific details. Warranties are provided by the manufacturer. We're happy to help connect you with the manufacturer if you have a warranty question.
We ship within the contiguous United States only. We do not currently ship to Alaska, Hawaii, PO boxes, APO/FPO addresses, or international destinations.
No. Standard curbside delivery means the carrier delivers to the curb or end of your driveway only. The driver is not required to bring items into your home, garage, or backyard, and delivery does not include unpacking, assembly, or installation.
Yes. Our store is secured with SSL encryption and all payments are processed through Shopify's secure checkout. We never store your full credit card information.
Exchanges are handled on a case-by-case basis. Contact us at info@plungeintosaunas.com with your order number and the item you'd like instead. If approved, you may be responsible for price differences, return shipping, and any applicable restocking fees.