M
Excellent
LOVE this suana. Maya and Norse Steam Team were amazing to work with!
Finnmark Designs FD-4: a two person indoor hybrid sauna with infrared heaters and a Harvia stove
The Finnmark Designs FD-4 is a two person indoor hybrid sauna. Hybrid means it has both infrared heaters and a traditional Harvia stove with stones, so you can choose a gentle infrared warm-up, a hot steamy sauna, or both at once. Red light lamps in the ceiling add a warm glow, and you can change the color of the lighting. The outside is thermo-aspen, which is aspen baked in a kiln so it will not warp or rot. The inside is Western Canadian cedar, a smooth wood that resists mold. Two tiers of benches let you sit up high for more heat or down low for less. A full glass door lets in light. It takes up about 49 by 49 inches of floor space.
The infrared heaters warm the room to 170 degrees, and the stove takes it to 190. Ladle water over the stones when you want steam. The infrared side plugs into a standard 120 volt household outlet. The stove needs its own circuit, wired by a licensed electrician. Inside you get the Harvia stove, a box of sauna stones, and a touchscreen control panel with Bluetooth that you can also run from your phone. A bucket and ladle are not included, so add them on this page along with a waterproof cover, a vinyl seat cushion, a cedar backrest, a headrest, and wood wax or oil. Need room for four? See the Finnmark Designs FD-5 hybrid sauna. The Finnmark Designs FD-4 ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Health Benefits
Benefits of Infrared
- The technology of the Spectrum Plus incoloy heaters warms your core body temperature, producing a cleaner, healthier sweat while lowering blood pressure, and maintaining heart health.
- 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. This deeper penetration through sweating goes beyond the muscle and fat rather than a traditional or hot air sauna. As a result, you’re able to work up the best possible sweat in the least amount of time.
- Spectrum Plus heaters remove 17% more toxins such as cholesterol, fat-soluble toxins, toxic heavy metals, sulfuric acid, sodium, ammonia and uric acid.
- 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.
- Reap the benefits of a more natural pain relief remedy with every infrared sauna session.
- Athletes can appreciate a faster muscle recovery with increased blood flow to the muscles, delivering more concentrated oxygen and creating more energy to heal.
Includes
- 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 Vega Compact 1900 Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm sauna stones (29 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).
- Medical Grade LED Red light therapy with 650nm plus color chromotherapy
- V2 LCD Controller 5″ Touchscreen with Bluetooth
- ETL Certification
- Limited Warranty
Specifications
| Model | FD-4 Trinity™ |
|---|---|
| External Materials | Thermo-Aspen (Thermal Plus™ kiln-treated aspen) |
| Interior Materials | Clear “A” grade Western Canadian Red Cedar |
| Seats | 2 (two tier bench) |
| Volts | 120 |
| Infrared Watts | 1750 |
| Amperage | Infrared 15 | Harvia Vega 15.9 (separate circuit, electrician required) |
| Plug Type | NEMA 5-15P (infrared); traditional heater hard-wired |
| Outlet | Standard 120v 15a household outlet (infrared) |
| Maximum Temperature | Infrared 170F | Traditional 190F |
| Infrared Heaters | (3) Spectrum Plus™ dual wave (far and mid) on back wall, (1) under bench and (2) on each side wall |
| Traditional Heater | Harvia Vega Compact 1900 on front interior wall |
| Insulation | Fully insulated walls |
| Interior Dimensions | 44.5″W x 45.1″D x 75.2″H |
| Exterior Dimensions | 48.8″W x 48.8″D x 83.1″H |
| Upper Bench | 44.5″W x 18.9″D |
| Lower Bench | 44.5″W x 15.7″D |
| Room Volume | 87.3 cu. ft. |
| Door Dimensions | 23.63″W x 68.88″H |
| Door Handle Dimensions | 1.5″W x 13.25″H |
| Glass Thickness | 8mm w/Gasket |
| Product Weight | 437 lbs |
| Shipping Dimensions | 36″W x 80″D |
| Shipping Weight | 485 lbs w/48 lb Pallet |
| Model | Vega Compact 1900 |
|---|---|
| Kilowatt Rating (kW) | 1.9kW |
| Primary Fuel | Electric |
| Minimum Adjusted Cubic Feet | 70 |
| Maximum Adjusted Cubic Feet | 106 |
| Voltage | 120V |
| Phase | 1PH |
| Nominal Amps | 15.9 Amps |
| Heater Weight | 15.4 lbs |
| Shipping Weight with Sauna Stones | 59.4 lbs |
| Width | 11″ (279mm) |
| Depth | 11″ (279mm) |
| Height | 21″ (533mm) |
Manual
Finnmark FD-4 Trinity Installation and Operation Manual (Aug 2026)
Harvia Vega Compact Heater Data Sheet
Spectrum Plus Infrared Heater Spec Sheet
FAQ
What is a hybrid infrared and steam sauna?
It is one cabin with three heat sources you can use separately or together: UL-listed Spectrum Plus short-wave infrared heaters, a medical-grade LED red-light panel at 650 nm with color chromotherapy, and a Harvia electric heater with stones for a traditional hot, steamy session. The Trinity manual notes the Spectrum Plus heaters were built to tolerate steam, unlike carbon panels. Compare other hybrid saunas here.
What electrical service does the FD-4 need?
Two circuits. The infrared heaters and lighting plug into a standard 120 V, 15 A outlet with a NEMA 5-15P plug and draw 1,750 W. The Harvia Vega Compact heater is a separate 120 V, 15.9 A load that needs its own 20 A circuit, hard-wired by a licensed electrician; the Trinity manual says to hand the Harvia installation manual to the electrician and routes the heater wiring through the floor at the front left.
Are the traditional heater and sauna stones included?
Yes. The Includes tab lists the Harvia Vega Compact 1900 heater (1.9 kW) and one 29 lb box of Harvia AC3000 stones, and recommends buying an additional box so you can pick the best-fitting stones. A bucket and ladle are not included; a bamboo and aluminum bucket-and-ladle set and the SaunaLife SaunaZone bucket with speaker are offered in the Recommended Add-Ons selector on this page.
How hot does each mode get?
The infrared side is rated to 170 F and the traditional heater to 190 F, per the Specifications tab. The controller manual says to wait until the heater reaches its set temperature before pouring water on the stones, then use small amounts; water pooling on the floor means you are pouring too much. The Harvia heater’s own operating instructions govern its use.
How long does it take to heat up?
The Trinity manual lists 50 to 60 minutes for the 4 x 4 Trinity to reach its 170 F infrared maximum, and suggests 15 to 20 minutes of preheat before stepping in. Warm-up varies with the room temperature and airflow around the cabin. On first use, run it at maximum temperature for an hour two or three times to burn off factory dust, as the manual recommends.
Can I control it from my phone?
The Includes tab lists the V2 5 in LCD touchscreen controller with Bluetooth audio, and the V2 controller manual linked in the Manual tab walks through pairing it with the Smart Life app over WiFi to power the sauna, set target temperature and session time, change lighting and schedule sessions by day. The manual notes a 90-minute built-in timer and that only one Bluetooth device can connect at a time.
How much space does it need, and what is the two-tier bench?
The cabin is 48 in wide, 48 in deep and 83 in tall outside, with a 44.25 x 45.5 x 75.5 in interior of about 86 cubic feet; add the 3 inches of clearance on all sides and top that the manual requires. Inside, an upper and a lower bench let you sit higher for more heat or lower for a milder session, and give two people room to stretch out.
Can I run the infrared and the traditional heater at the same time?
Yes. It is one of the few saunas on the market where the infrared panels and the traditional stone heater run together in one session instead of one or the other. The Trinity manual notes the Spectrum Plus infrared heaters were built specifically to tolerate a traditional heater’s steam, unlike carbon panels. Bring the cabin up on the Harvia heater, add steam, and keep the infrared working on your body at the same time, or use either alone.
Customer Reviews
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What Our Customers Say
D
A sauna turns your garden into a spa oasis. We debated it for a while, but after renovating our house, we pulled the trigger and bought a sauna from Norse Steam and Maya. She was always super responsive and helpful throughout the process. Don't kid yourself, getting a really nice sauna is not that easy. Sizing and heating need to be figured out, as does the building, but we have always had a helpful partner on our side. She never upsold us on anything we didn't need, and we got some nice freebies when the sauna was delivered. And now we can really enjoy every moment in our garden.
KF
I'm really happy with my sauna purchase. Maya gave above and beyond excellent customer service. She wasn't pushy and gave impressive followup after the delivery to make sure everything was just right.
DE
I enjoy my FD2 Sauna with Red Light, Infrared and radiant heat. Use it 5x a week and my post workout soreness is minimal and sleep great. Maya at Norse Steam was excellent to work with.
B
We purchased the 3-person sauna for our outdoor garden. We chose the cube sauna for the aesthetic and could not be happier.
I assembled by myself except for the 2 large panels (requires a few people). Instructions were good - took me two partial Saturdays to complete and a few hours to unpack and organize in advance of assembly. Had my elec. add a NEMA enclosure on the back for the controller and power for lights and a 2nd panel for the wireless control.
Customer service was excellent
MP
Awesome Sauna and Awesome Company and Experience purchasing it from Maya!
After much research I chose the Finnmark FD-2 and it has met and exceeded all my expectations! Easy to assemble and it functions great - just as advertised. I highly recommend it for home use!
EA
Recently purchased the Finnmark one person after much research. Extremely happy with it and the ordering process. Maya was very responsive and helpful during the process and keeping us updated while we waited for shipment. There were several places I could have ordered this, but i chose Norse Steam based on the communication and customer service which was fantastic. The shipment was also excellent. The setup was pretty seamless for two people - but the best part is the sauna experience 10/10
G
Maya is amazing - super helpful and responsive. Looked at many stores, these guys have the best prices and service. Highly recommend
GR
Norse Steam, and specifically Maya, were extremely helpful as I was making the decision for our Sauna. I was able to get all of the necessary details to make a decision as construction was happening in my backyard to make space for it.
We absolutely love the CL7G. It is extremely comfortable for 6 people (can fit more less comfortably). The Thermory Spruce and Aspen in the interior smells great. The lighting is lovely. We paired the CL7G with the Harvia Spirit 10.5kw.
RS
Had great experience shopping at Norse Steam for the new heater. They had very good deal, with rocks. Customer service was good, and responded very fast with my questions. Received the heater, and it looks good, and the quality seem to be great. Will install soon, and am very excited to start experiencing sauna the way it ment to be
O
positive purchase experience - Harvia Legend 150 SL woodstove
thanks Norse Steam for flawless transaction - I got instant replies on my questions, received competitive price on the wood stove and got it delivered within two weeks!
Can highly recommend Norse Steam for others.
JR
Smoking Hot Tub!
I got the Norse Steam SaunaLife wood-fired hot tub, the S4N model, and its been seriously great. It heats up quicker than I expected, usually around an hour and a half, and once its hot, it stays that way for a good long while. The wood-fired system is simple to use, and honestly kind of fun.
The tub itself feels solid and well put together. The thermo-spruce exterior looks beautiful in person, and the fiberglass interior is smooth, deep, and easy to clean. Its the kind of setup that just works without a bunch of fuss, which I really appreciate.
Also, the team at Norse Steam was genuinely great to work with. Super helpful, quick to respond, and made the process really easy from start to finish. It felt like they actually cared that I was happy with it. The tub has totally become a go-to way to unwind, and I wouldnt change a thing.
S
Maya was so knowledgeable and responsive
Maya was so knowledgeable and responsive. She helped me understand the product options and found a fantastic solution that fit our needs. Her follow through was very helpful and made us comfortable with our decision. We are extremely happy with the end result!
W
Great service
I recently purchased the Harvia Club sauna equipment, and I am thoroughly impressed with both the product and the customer service experience. The heaters robust performance and durable stainless steel construction make it ideal for larger sauna spaces, providing consistent heat and a relaxing environment. Its compatibility with advanced controls ensures a personalized sauna experience every time.
The customer service team was exceptional, prompt, knowledgeable, and helpful throughout the purchase process. They ensured smooth delivery and provided clear guidance on installation and operation. Overall, I highly recommend Harvia Club for anyone seeking premium-quality sauna equipment backed by excellent support!
BT
Great Sauna & Purchase Experience
Great experience purchasing Finnmark FD-2 from Norse Steam. Good communication and easy to assemble. Temperature increases quickly (30 minutes or less to 140) and maintains well. So far this has been a great purchase.
M
Great sauna and great customer service
We purchased the Finnmark SD-1 sauna. Maya was extremely helpful with the purchase. We had an issue with the sauna not reaching the maximum temperature, and Maya connected us with the appropriate technician that explained how to correct the issue. The sauna now heats to the maximum temperature (170 degrees) in less than an hour, and it is a great unit. We are very happy with it, and we would definitely purchase from NorseSteam if we needed any other items.
JK
Sauna Review
I recently purchased a sauna from Norse Steam, and I couldn't be more impressed with the entire experience. From start to finish, their customer service was exceptional, and Maya deserves special recognition for her outstanding support!
Maya was incredibly knowledgeable and patient, answering all my questions about the sauna features, installation process, and maintenance. She went above and beyond to ensure I selected the perfect model for my home. Even after the purchase, Maya followed up to make sure everything was running smoothly and that I was satisfied with my sauna.
The sauna itself is top-notch beautifully designed, durable, and easy to use. It's clear that Norse Steam takes pride in the quality of their products and their commitment to customer satisfaction.
If you're considering a sauna, I wholeheartedly recommend Norse Steam. With their excellent customer service and high-quality products, you're in great hands. Thank you, Maya, and the entire Norse Steam team for a fantastic experience!
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