Saunum · Made in Estonia · UL listed
Saunum’s commercial-grade climate equalizer: 180 lb of stone, rooms to 812 cu ft, and the same 2" closed-basket clearances as the home AIR.
The AIR L is the heater Saunum builds for gyms, spas, and serious home rooms - a lower rock basket, commercial-grade components, and the latest prewired power box with cable whip. The Dec 2025 manual widened its room ranges (AIR L 10 now covers 283-494 cu ft) and sets a 73" minimum ceiling for every size.
From $3,895 heater-only · free US shipping
| Size | SKU | Heater price | Room fit |
|---|---|---|---|
| 10 kW | AIR L 10 | $3,895 | 283-494 cu ft - large home rooms and small commercial saunas |
| 13 kW | 4745090017915 | $3,995 | 424-565 cu ft - mid-size commercial and club saunas |
| 15 kW | 4745090018424 | $4,195 | 530-812 cu ft - the largest rooms Saunum supports |
Buy the Saunum AIR L Black (Closed Basket) — secure checkout Design with Saunum AIR L Black (Closed Basket) in 3D
The AIR L is the most reliable heater Saunum offers, built for daily club and spa cycles. Its industrial-grade heating elements are expected to outlast any other sauna heater under intense, back-to-back use, and 180 lb of stone paired with the patented air blending still delivers dense, soft, even steam from 283 up to 812 cu ft.
Tall commercial rooms stratify worst. The AIR L’s ceiling-intake column and three-speed fan recirculate the hot layer down to bench level - the same system Saunologia measured cutting head-to-toe spread by more than half.
The solid Nordic Black closed basket needs only 2" side and front clearance to combustibles, with rear-against-wall placement and a max 3.9" niche - rare flexibility in the 10-15 kW class.
Salt spheres sit in the airstream between the outlet grille and fan, releasing salt ions through the room - a spa upsell that ships in the box, with an aroma cup for essential-oil sessions.
Latest AIR L units ship with a prewired power box, cable whip, and external temperature sensor. 240V single-phase at 50-80 A breakers depending on size; never on a GFCI per the manual.
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 Black (Closed Basket) is a wall-mounted heater from Saunum for 283-812 cu ft adjusted sauna rooms. Key planning facts: 9.9-15 kW output, 180 lbs stone capacity, and 73" minimum finished ceiling guidance, and controller guidance: Saunum AirIQ Wi-Fi controller.
Design with Saunum AIR L Black (Closed Basket) Buy in North America at Sauna Marketplace
Saunum AIR L Black (Closed Basket) is a wall-mounted heater from Saunum with 9.9-15 kW output and 180 lbs stone capacity.
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.
Plan 2.00" side/back clearance, 20" front clearance, and a 73" minimum finished ceiling check before placing benches or glass.
Current controller guidance: Saunum AirIQ Wi-Fi controller. Match the controller, relay or power unit, and voltage to the selected kW row before ordering.
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.
| Variant | Power | Room volume | Dimensions | Rocks | Side/back | Front | Minimum ceiling | Controller |
|---|---|---|---|---|---|---|---|---|
| AIR L 10AIR L 10 | 9.9 kW | 283-494 cu ft | 18.3" W x 18.1" D x 33" H | 180 lb | 2.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
| AIR L 13AIR L 13 | 12.9 kW | 424-565 cu ft | 18.3" W x 18.1" D x 33" H | 180 lb | 2.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
| AIR L 15AIR L 15 | 15 kW | 530-812 cu ft | 18.3" W x 18.1" D x 33" H | 180 lb | 2.00" | 20" | 73" | Saunum AirIQ Wi-Fi controller |
Saunum AIR L US installation and operation manual
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)
Wall-mounted
Floor clearance shows the minimum bottom height where the manual lists one.
AIR L 10 / AIR L 13 / AIR L 15
Useful when the store name and manual model number are not identical.
283-812 cu ft
Use adjusted sauna volume after cold surfaces, not just geometric room volume.
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.
73"
Computed from body height, floor clearance, top clearance, and the manual minimum room height.
95"
Sizes with a maximum ceiling should not be stretched beyond this value without manufacturer review.
240V North America package; verify selected kW; Saunum AirIQ Wi-Fi controller
Use the selected kW row and SKU when matching breakers, phases, relays, and controller packages.
AirIQ control system required Use Saunum glass/tile/stone/log adjusted-volume rules before sizing
10 more notes shown below.