See the open basket in your room
The deeper stainless basket exposes the stone charge, while the lower housing and rear intake column remain black. The 3D view preserves the raised grille and full column above the body.
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Saunum AIR L Stainless (Open Basket)
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Saunum · Made in Estonia · verify the exact model listing
Saunum AIR L Stainless (Open Basket) sauna heater
The best-value Saunum: commercial-grade AIR L performance with 190 lb of exposed stone in a polished stainless open basket.
Developed with Tallinn University of Technology research, the stainless AIR L radiates heat straight off its exposed stone wall while the patented air-blending system keeps the whole room within a tight head-to-toe spread. At $3,595-$3,995 it is the lowest-priced path into a commercial Saunum - just plan the 8" open-basket side clearances.
From $3,595 heater-only · free US shipping
| Size | SKU | Heater price | Room fit |
|---|---|---|---|
| 10 kW | AIR L 10 SS | $3,595 | 283-494 cu ft - large home rooms and small commercial saunas |
| 13 kW | AIR L 13 SS | $3,795 | 424-565 cu ft - mid-size commercial and club saunas |
| 15 kW | AIR L 15 SS | $3,995 | 530-812 cu ft - the largest rooms Saunum supports |
Buy the Saunum AIR L Stainless (Open Basket) — secure checkout Design with Saunum AIR L Stainless (Open Basket) in 3D
- Free shipping in the continental US
- UL listed for North America (UL 875 / CSA C22.2 No. 164)
- AirIQ Wi-Fi controller, Saunum-paired stones, Himalayan salt spheres, and external temp sensor included
- Ships from the greater Chicago distribution center
- Sold and supported by the Bens at Sauna Marketplace - Saunum owners and US-market R&D partners since launch
Open basket pushes heat low and out, not up
With an exposed stone basket the heat and steam radiate out the sides and settle into the lower half of the room, instead of tunneling straight up and pooling at the ceiling the way a closed/solid body does. It is the same trade you get with any open-basket heater - more warmth where your body actually is - and on a Saunum the air-blending fan reinforces it.
Even heat from 283 to 812 cu ft
Hot-ceiling/cold-floor stratification gets worse as rooms grow. The AIR L’s fan-driven blending keeps the spread to roughly 10-15F instead of the 60-80F a conventional electric heater allows.
The most reliable heater Saunum builds
The AIR L is Saunum’s most reliable, commercial-grade heater: its industrial-grade heating elements are expected to outlast any other sauna heater under intense, daily-cycle use. UL 875 listed with a 2-year warranty - the same platform spas across Estonia and North America run.
Integrated Himalayan salt system
Salt spheres in the airstream release beneficial ions as the fan circulates - respiratory-friendly sessions without a separate salt-room build.
Plan the open-basket envelope
The Dec 2025 manual asks for 8" side and 10" front clearance to combustibles plus the 20" fan-output keep-clear zone. SaunaDesignPro’s 3D planner places it correctly automatically.
Nobody knows Saunum like the Bens at Sauna Marketplace
The Bens have worked hand-in-hand with the Saunum team since the brand first reached the US, run Saunum heaters in their own saunas, and have been part of Saunum pilot projects, testing, and R&D tuned for the US market. When you have a sizing, install, or steam question, you are talking to the people who helped shape the US lineup.
Saunum AIR L Stainless (Open Basket) is a wall-mounted heater from Saunum for 283-812 cu ft adjusted sauna rooms. Key planning facts: 9.9-15 kW output, 190 lb stone capacity, and 73" minimum finished ceiling guidance, and controller guidance: Saunum AirIQ Wi-Fi controller.
Design with Saunum AIR L Stainless (Open Basket) Buy in North America at Sauna Marketplace
Quick answers
What is Saunum AIR L Stainless (Open Basket)?
Saunum AIR L Stainless (Open Basket) is a wall-mounted heater from Saunum with 9.9-15 kW output and 190 lb stone capacity.
What sauna room size fits Saunum AIR L Stainless (Open Basket)?
The published adjusted room-volume range is 283-812 cu ft. Add glass, tile, stone, brick, concrete, or log exposure before choosing the final kW row.
What clearances does Saunum AIR L Stainless (Open Basket) need?
Plan 8.00" side/back clearance, 20" front clearance, and a 73" minimum finished ceiling check before placing benches or glass.
Which controller works with Saunum AIR L Stainless (Open Basket)?
Current controller guidance: Saunum AirIQ Wi-Fi controller. Match the controller, relay or power unit, and voltage to the selected kW row before ordering.
Where should I start with Saunum AIR L Stainless (Open Basket)?
Use the 3D designer to validate the room, benches, openings, clearances, and material schedule, then use Sauna Marketplace for the current package and buying path.
Saunum AIR L Stainless (Open Basket) size and clearance table
| Variant | Power | Room volume | Dimensions | Rocks | Side/back | Front | Minimum ceiling | Controller |
|---|---|---|---|---|---|---|---|---|
| AIR L 10 StainlessAIR L 10 Stainless | 9.9 kW | 283-494 cu ft | 18.3" W x 18.1" D x 33" H | 190 lb | 8.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
| AIR L 13 StainlessAIR L 13 Stainless | 12.9 kW | 424-565 cu ft | 18.3" W x 18.1" D x 33" H | 190 lb | 8.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
| AIR L 15 StainlessAIR L 15 Stainless | 15 kW | 530-812 cu ft | 18.3" W x 18.1" D x 33" H | 190 lb | 8.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
Best fit
- Saunum AIR L Stainless (Open Basket) is flagged as commercial grade for larger residential, spa, or hospitality planning.
- 9.9-15 kW Saunum heater family for 283-812 cu ft adjusted hot rooms.
- Wall-mounted layouts where the heater footprint, front clearance, and bench approach are planned before ordering.
- 190 lb stone capacity with Saunum AirIQ Wi-Fi controller controller guidance.
- Rooms that can meet the 73" minimum finished ceiling check for the selected size row.
- Wall blocking, cladding buildup, and heater bottom height should be resolved before paneling goes in.
Designer checks
- Size the room by adjusted volume, including the 3.0 cu ft per sq ft for glass, tile, stone, brick, concrete, or log surfaces rule where it applies.
- Validate side/back clearance 8.00", front clearance 20", and bench setback before finalizing benches.
- Check the 73" minimum finished ceiling against the room height.
- Carry the selected Saunum AirIQ Wi-Fi controller package into the material schedule and heater placement notes.
Package notes
- Saunum circulating sauna heater
- 190 lb; 190 lb
- Wi-Fi enabled Saunum AirIQ controller
Manual-backed facts
Source
Saunum AIR L US installation and operation manual (covers open and closed baskets)
source: SaunaMarketplace Saunum Air, Air L, and Air Perfect 2026 product manuals/downloads (Air US ENG V_25_10.4; Air L US ENG V_25_12.1; Air Perfect US V_26_1.1; checked May 24, 2026)
Mounting
Wall-mounted
Floor clearance shows the minimum bottom height where the manual lists one.
Model numbers
AIR L 10 Stainless / AIR L 13 Stainless / AIR L 15 Stainless
Useful when the store name and manual model number are not identical.
Room volume range
283-812 cu ft
Use adjusted sauna volume after cold surfaces, not just geometric room volume.
Cold-surface adder
3.0 cu ft per sq ft for glass, tile, stone, brick, concrete, or log surfaces
The calculator applies the brand-family coefficient before selecting a heater size.
Minimum finished ceiling
73"
Computed from body height, floor clearance, top clearance, and the manual minimum room height.
Maximum room height
95"
Sizes with a maximum ceiling should not be stretched beyond this value without manufacturer review.
Electrical/control
240 V single phase; Saunum AirIQ Wi-Fi controller
Use the selected kW row and SKU when matching breakers, phases, relays, and controller packages.
Critical differences
AirIQ control system required Use Saunum glass/tile/stone/log adjusted-volume rules before sizing
10 more notes shown below.
- AirIQ control system required
- Use Saunum glass/tile/stone/log adjusted-volume rules before sizing
- Only one sauna device may be installed in the sauna room
- Do not connect through a GFCI breaker (Saunum US manuals)
- 240V 1PH, 41.25 A, 50 A breaker, (2) #6 + N + G copper
- 240V 1PH, 53.75 A, 70 A breaker, (2) #6 + N + G copper
- 240V 1PH, 62.50 A, 80 A breaker, (2) #4 + N + G copper
- V_25_12.1 (Dec 2025). Open stone basket rows: 8 in side / 10 in front safety distance, 190 lb stones.
- Saunum AIR L Stainless (Open Basket) is listed as commercial grade in SaunaDesignPro.
- Saunum AIR-family pages require AirIQ control, the Saunum cold-surface adder, and one sauna device per room.
- Saunum US manuals forbid GFCI breakers and require min 90C copper wiring; in-sauna cable below 40 in AFF must be rated 194F (T125-class), above 40 in or in-wall 257F (SSJ-type).
- AIR L (black closed or stainless open basket) is the only Saunum family currently listed as commercial grade in SaunaDesignPro.