Finnleo S-Series
Experience the Finnleo S-Series—premium indoor infrared saunas combining Canadian Hemlock craftsmanship with CarbonFlex low-EMR/low-EF heating. Available in space-efficient one-person through spacious four-person designs, each model offers even head-to-toe warmth, IL2 Wi-Fi and mobile app controls, Bluetooth audio, LED color lighting, and a contemporary glass-forward design. Whether you need a compact personal sauna, flexible multi-person seating, or a corner-friendly layout, the S-Series makes everyday relaxation easy to bring home.
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What makes this sauna collection unique?
The Finnleo S-Series makes premium infrared sauna ownership approachable with six freestanding models ranging from compact one-person rooms to spacious four-person layouts. Every model combines clear Canadian Hemlock construction with an open glass-forward design and full-body infrared coverage.
Key features include:
- CarbonFlex and Pure Infra low-EMR/low-EF heating technology
- Wall, seat, floor and full-sized calf emitters
- InfraLogic2 touchscreen control with Wi-Fi and mobile app access
- RGBW color LED lighting
- Integrated Bluetooth audio
- Prewired, panel-built construction for easier installation
- Six sizes with seating for one to four people
- 120-volt operation with model-specific 15- or 20-amp requirements
Who is this sauna collection best for?
The S-Series is best for homeowners who want a comfortable, lower-temperature infrared sauna experience without constructing a permanent sauna room. Its broad range of sizes makes it suitable for individual wellness routines, couples and small households.
It may be a great fit for customers who want:
- Infrared heat instead of rocks, steam and traditional high temperatures
- A dedicated relaxation or post-workout recovery space
- A sauna for a home gym, wellness room, bathroom suite or bedroom
- Low-EMR/low-EF heating technology
- App control, lighting and Bluetooth audio included
- Compact personal models or roomier shared seating
- A freestanding indoor sauna with straightforward 120-volt installation
What should customers consider before choosing this sauna?
Customers should first decide how many people will normally use the sauna and whether they want compact seating, room to stretch out or a corner-friendly layout.
Important considerations include:
- The S-Series is designed for indoor installation.
- Capacities range from one to four people.
- All models operate on 120 volts, but some require a dedicated 20-amp outlet.
- Exterior dimensions vary considerably between models.
- Customers should confirm side and overhead clearances, door swing and delivery access.
- Infrared heat is gentler than traditional sauna heat and does not provide rocks or steam.
- Larger models provide more comfort but require more floor space and are substantially heavier.
- The S-830 offers room to lie down, while the S-870 is specifically designed for efficient corner placement.
Featured S-Series Models
S-820
A compact two-person model with a 13.3-square-foot footprint and a standard 15-amp outlet requirement. Finnleo specifically calls it one of its most popular models, making it the safest lead product for the collection.
S-830
Seats three and has a nearly six-foot-wide bench, allowing one person to lie down comfortably. It offers a meaningful upgrade over the S-825 for customers who have the space and a dedicated 20-amp outlet.
S-870
Its five-sided, approximately 52-by-52-inch design seats up to three while fitting efficiently into a corner. The standard 15-amp outlet requirement also makes it unusually accessible for a three-person sauna.
Find the Perfect Sauna for Your Needs
Looking for a specific size, seating capacity, layout or indoor/outdoor model? Use our filters to narrow your search by the features that matter most and quickly discover the saunas that match your criteria.
Finnleo S-Series FAQs
What is the Finnleo S-Series?
The Finnleo S-Series is a collection of freestanding indoor infrared saunas designed for convenient at-home wellness. The lineup includes six models with seating capacities ranging from one to four people.
How is an S-Series infrared sauna different from a traditional sauna?
S-Series saunas use infrared emitters to warm the body more directly at a lower air temperature. They do not use a traditional heater, sauna stones or water-over-rock steam.
Which Finnleo S-Series models are available?
The collection includes:
- S-810: One person
- S-820: Up to two people
- S-825: Up to two people with additional interior room
- S-830: Up to three people with room to lie down
- S-840: Up to four people with flexible U-shaped seating
- S-870: Up to three people in a corner-friendly layout
What type of infrared heating does the S-Series use?
S-Series saunas use CarbonFlex emitters and Finnleo’s Pure Infra low-EMR/low-EF technology. Emitters are positioned along the walls, seat, floor and calf areas to provide even, full-body heat coverage.
What electrical connection does an S-Series sauna require?
Every S-Series model operates on 120 volts. Electrical requirements vary between a standard 15-amp outlet and a dedicated 20-amp outlet, depending on the model. Customers should confirm the exact requirement before installation.
Can an S-Series sauna be installed outdoors?
No. Finnleo S-Series saunas are designed for indoor use. Suitable locations may include a home gym, wellness room, finished basement, bathroom suite or other climate-controlled interior space.
Are S-Series saunas difficult to assemble?
S-Series saunas use prefabricated, prewired panels and a Pin-and-Hook wall-locking system to simplify assembly. Customers should still confirm delivery access, door swing, floor requirements and the required side and overhead clearances before installation.
Can an S-Series sauna be controlled with a mobile app?
Yes. S-Series models include Finnleo’s InfraLogic2 control with Wi-Fi and mobile app connectivity. Users can control functions such as power, session time, temperature, lighting and compatible audio features.
Do S-Series saunas include lighting and Bluetooth audio?
Yes. Standard comfort features include RGBW color LED lighting and an integrated Bluetooth sound system. Customers can personalize the lighting and listen to music, podcasts or other audio during a session.
What warranty comes with a Finnleo S-Series sauna?
Current manufacturer specifications list five-year warranty coverage for the infrared emitters, wood cabinet and controls. Customers should review Finnleo’s complete warranty terms for coverage requirements, limitations and registration information.







