Stainless basket, black column
The open stone basket is stainless steel; the lower air outlet housing and telescoping rear column stay black. The 3D view shows this finish combination and the exposed stone charge.
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Saunum AIR Stainless (Open Basket)
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Saunum · Made in Estonia · verify the exact model listing
Saunum AIR Stainless (Open Basket) sauna heater
Saunum’s climate equalizer with the exposed stainless open basket - more stone, more direct radiant heat, more steam off the rocks.
The open stainless basket releases heat straight through its sides, keeping more warmth low in the room where you sit. It still does what Saunum is famous for - blending hot ceiling air with oxygen-rich floor air - but with 130 lb of visible stone and a more intense, rock-forward heat. Plan 6" side clearances per the Dec 2025 manual.
From $4,465 heater-only · free US shipping
| Size | SKU | Heater price | Room fit |
|---|---|---|---|
| 5 kW | 4745090017892 | $4,465 | 106-212 cu ft - compact rooms around 6 x 5 ft |
| 7 kW | AIR 7 SS | $4,665 | 177-318 cu ft - the sweet spot for most home sauna builds |
Buy the Saunum AIR Stainless (Open Basket) — secure checkout Design with Saunum AIR 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.
130 lb of stone for smoke-sauna softness
The open basket carries 20 lb more stone than the closed body. That thermal mass is the Saunum thesis: big stone volume makes long, soft loyly like the Estonian smoke saunas that inspired designer Andrus Vare.
The same patented air blending
A quiet three-speed fan pulls the hottest ceiling air down the telescopic column, mixes it with cooler floor-level air, and returns it evenly - Saunologia measured the head-to-toe spread cut in half in long-term testing.
Know the clearance trade
Because the stones are exposed, the Dec 2025 manual asks for 6" side and front clearance to combustibles (vs 2" for the closed black body). SaunaDesignPro’s 3D planner enforces the right envelope automatically.
Complete package, simple install
AirIQ Wi-Fi controller, Saunum-paired stones, Himalayan salt spheres, external temperature sensor, and the prewired power box ship in the box. 240V single-phase; never on a GFCI breaker per the manual.
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 Stainless (Open Basket) is a wall-mounted heater from Saunum for 106-318 cu ft adjusted sauna rooms. Key planning facts: 4.95-6.9 kW output, 130 lb stone capacity, and 73" minimum finished ceiling guidance, and controller guidance: Saunum AirIQ Wi-Fi controller.
Design with Saunum AIR Stainless (Open Basket) Buy in North America at Sauna Marketplace
Quick answers
What is Saunum AIR Stainless (Open Basket)?
Saunum AIR Stainless (Open Basket) is a wall-mounted heater from Saunum with 4.95-6.9 kW output and 130 lb stone capacity.
What sauna room size fits Saunum AIR Stainless (Open Basket)?
The published adjusted room-volume range is 106-318 cu ft. Add glass, tile, stone, brick, concrete, or log exposure before choosing the final kW row.
What clearances does Saunum AIR Stainless (Open Basket) need?
Plan 6.00" side/back clearance, 20" front clearance, and a 73" minimum finished ceiling check before placing benches or glass.
Which controller works with Saunum AIR 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 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 Stainless (Open Basket) size and clearance table
| Variant | Power | Room volume | Dimensions | Rocks | Side/back | Front | Minimum ceiling | Controller |
|---|---|---|---|---|---|---|---|---|
| AIR 5 StainlessAIR 5 Stainless | 4.95 kW | 106-212 cu ft | 18.3" W x 12.4" D x 33" H | 130 lb | 6.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
| AIR 7 StainlessAIR 7 Stainless | 6.9 kW | 177-318 cu ft | 18.3" W x 12.4" D x 33" H | 130 lb | 6.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
Best fit
- 4.95-6.9 kW Saunum heater family for 106-318 cu ft adjusted hot rooms.
- Wall-mounted layouts where the heater footprint, front clearance, and bench approach are planned before ordering.
- 130 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 6.00", 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
- 130 lb; 130 lb
- Wi-Fi enabled Saunum AirIQ controller
Manual-backed facts
Source
Saunum AIR 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 5 Stainless / AIR 7 Stainless
Useful when the store name and manual model number are not identical.
Room volume range
106-318 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
9 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, 20.63 A, 30 A breaker, (2) #10 + N + G copper
- 240V 1PH, 28.75 A, 40 A breaker, (2) #8 + N + G copper
- V_25_12.1 (Dec 2025). Open stone basket rows: 6 in side/front safety distance, 130 lb stones.
- 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).
- Saunum discontinued the AIR 10 (non-L). The Dec 2025 AIR manual (V_25_12.1) covers AIR 5 and AIR 7 only - older manuals listing an AIR 10 are out of date. For roughly 10 kW rooms use AIR L 10 or AIR Perfect 10.
- Open stainless basket: 6 in side/front safety distance to combustibles because the exposed stones radiate from the sides; only the rear may touch the wall.