The Saunum Air L 10 in stainless steel is a 10kW floor-standing sauna heater with a patented integrated climate equalizer - a system that no other sauna heater manufacturer offers. Where every other heater in this catalog simply heats the sauna room and lets temperature stratify naturally, the Saunum Air L actively mixes the air: a built-in fan draws cooler, oxygen-rich air from the floor of the sauna room, blends it with hot, oxygen-depleted air from the ceiling, and distributes the mixed airstream evenly throughout the room. The practical result is a sauna environment where the temperature difference between the floor and the ceiling is substantially smaller than in a conventionally heated room - and where oxygen levels are more consistent from bench level to ceiling, making the air easier to breathe even at high temperatures.
The patented air mixing system - why no cold feet matters
In a conventional electric sauna, stratification is unavoidable: the heating elements warm the air adjacent to them, hot air rises to the ceiling, and the floor and lower bench level remain significantly cooler than the upper bench. Bathers on the upper bench experience intense heat while bathers or children on the lower bench experience much milder conditions - and the oxygen concentration drops toward the ceiling as heat displaces it. The Saunum Air L's patented climate equalizer addresses this directly. The fan system pulls cool floor air into the heater, mixes it with hot ceiling air, and delivers a blended airstream at an intermediate temperature throughout the room rather than allowing two distinct zones to develop. The result is a more comfortable experience at every level of the sauna room, better air quality throughout the session, and the ability to sit anywhere in the room rather than only on the upper bench for meaningful heat.
190-lb stone capacity and Himalayan salt reservoir
The Air L 10 holds 190 lbs of sauna stones (6 boxes, sold separately). This is one of the largest stone capacities of any residential-grade sauna heater in this catalog - significantly more than the Virta HL60E's 110 lbs or the Cilindro PC80's 200 lbs. Large stone mass produces softer, more sustained steam, absorbs more water per ladle without cooling rapidly, and distributes heat more evenly because the stone surface area releasing radiant heat is larger. Within the stone airstream, Saunum positions a Himalayan salt reservoir: Himalayan salt spheres sit within the air current produced by the climate equalizer, so that as the air circulates through the room it carries salt ions - reported to benefit respiratory health and skin. The salt spheres are included with the heater. The optional aromatherapy system (sold separately) adds a further sensory layer by infusing aroma into the circulating airstream.
Active sauna drying - the fan keeps working after the session
Because the Saunum Air L has an integrated fan system for the climate equalizer, that same fan can be used to dry the sauna room after a session. Water tossed onto the stones during the session, condensation on the sauna walls and benches, and residual humidity are all reduced more quickly by the active air circulation than in a conventional sauna that relies entirely on passive ventilation and natural drying. This is a meaningful practical benefit for sauna rooms used frequently: shorter drying time between sessions, reduced moisture accumulation in the wood, and lower humidity in the sauna structure when not in use. A required external control unit (AirIQ WiFi control, sold separately) manages both the heater and the climate device, with full control via the Saunum app on iOS and Android.
Stainless steel finish - the SS model
This listing is for the stainless steel version of the Air L 10 (164-AIR-L-SSB-10). The Saunum Air L is also available in black steel. Both are identical in all technical specifications - the choice between them is purely aesthetic. The stainless finish suits lighter natural wood sauna interiors where a reflective polished surface complements the wood tones. The black finish suits darker cedar, thermally modified wood, and contemporary design palettes where the heater should recede visually rather than stand out.
10kW floor-standing sauna heater with patented climate equalizer for rooms from 283 to 494 cubic feet. Patented air mixing system - fan draws cool oxygen-rich floor air, blends with hot ceiling air, distributes evenly throughout room. No more cold feet, more consistent oxygen from floor to ceiling. 190 lb stone capacity (6 boxes, sold separately). Himalayan salt reservoir with 7 salt spheres (included). Active sauna drying via fan after session. Polished stainless steel exterior. AirIQ WiFi control required (sold separately). Saunum app - iOS and Android. 240V / 1-phase, 50A breaker, 6 AWG wire. UL Listed. Optional aromatherapy system. 6 distinct sauna bathing styles. Made in Estonia.
10 kW 283 to 494 cu ft Patented climate equalizer - air mixing system No cold feet - even temperature floor to ceiling 190 lb stone capacity Himalayan salt reservoir - salt spheres included Active sauna drying via fan Polished stainless steel finish AirIQ WiFi control - Saunum app 6 sauna bathing styles 240V / 1-phase - 50A breaker - 6 AWG UL Listed Made in Estonia
Specifications
Electrical
| Power output |
10 kW |
| Voltage |
240V / 1-phase / 60 Hz |
| Circuit breaker required |
50 A (standard 2-pole - no GFI/GFCI) |
| Wire gauge |
6 AWG |
| Certification |
UL Listed |
Room sizing and stones
| Room volume |
283 to 494 cu ft |
| Stone capacity |
190 lbs |
| Stones required |
6 boxes (190 lbs total) - sold separately |
| Stones included |
No - sold separately |
Climate equalizer system
| Air mixing |
Patented - floor air mixed with ceiling air, distributed evenly |
| Salt reservoir |
Himalayan salt spheres - positioned in airstream |
| Salt spheres included |
7 Himalayan salt spheres |
| Sauna drying |
Active drying via fan after session |
| Aromatherapy |
Optional - sold separately |
Control and connectivity
| Required control |
Saunum AirIQ WiFi - sold separately |
| App |
Saunum app - iOS and Android |
| Temperature range |
104°F to 194°F (40°C to 90°C) |
| Humidity control |
10-60% rH (temperature dependent) |
| Timer |
Up to 1 hour private / up to 6 hours public |
| Preset sessions |
Up to 3 preset sauna settings |
Sauna bathing styles
| Finnish Sauna |
Intense dry heat, traditional style |
| Russian Banya |
Air blending, massive stone volume, intense heat and steam |
| Steam Sauna |
High humidity continuous steam |
| Herbal Sauna |
Herb-infused steam session |
| Aroma Sauna |
Aromatherapy infused into circulating airstream |
| Relaxation |
Lower temperature, gentle circulation, light steam |
Construction and warranty
| Finish |
Polished stainless steel (SS model) |
| Mounting |
Floor-standing |
| Origin |
Made in Estonia by Saunum |
What's included
Saunum Air L 10 10kW sauna heater - stainless steel
7 Himalayan salt spheres
Installation and operation manual
Not included (required for operation): Saunum AirIQ WiFi control (sold separately), 6 boxes of sauna stones (190 lbs total, sold separately). Optional accessories: Aromatherapy system, additional Himalayan salt spheres (sold separately).
Why the Saunum Air L 10 stands out
Patented air mixing - even heat floor to ceiling
No other sauna heater in this catalog actively mixes sauna room air. The integrated fan draws cool, oxygen-rich floor air into the climate equalizer, blends it with hot ceiling air, and distributes it throughout the room - eliminating the cold floor zone and oxygen-depleted upper zone that conventional heaters produce. Consistent heat and oxygen from head to toe.
Himalayan salt reservoir - included
7 Himalayan salt spheres are loaded into the salt reservoir within the airstream. As the climate equalizer circulates air through the room, salt ions are carried throughout the sauna space. Negative salt ions are reported to support respiratory health and skin. The salt spheres are included with this listing - no additional purchase needed to activate this feature.
190 lbs stone capacity
One of the largest stone loads of any residential-grade heater in this catalog. 190 lbs of stones stores substantial thermal energy, produces softer and more sustained steam, and provides the large heated surface area that Saunum's air mixing system distributes evenly through the room. 6 boxes of stones are required and sold separately.
Active sauna drying
When the session ends, the climate equalizer fan continues circulating air through the sauna room, drying the wood, benches, and stones faster than passive ventilation alone. For frequently used saunas, shorter drying time between sessions means less moisture accumulation in the structure and longer-lasting interior materials.
6 sauna bathing styles
Finnish sauna, Russian banya, steam sauna, herbal sauna, aroma sauna, and relaxation mode - each achieved by adjusting the balance of heat, airflow, and humidity through the AirIQ control. The Saunum app presets allow saving up to 3 preferred configurations for repeatable, one-tap session starts.
Polished stainless steel finish
The SS model in polished stainless steel suits lighter natural wood sauna interiors. Identical in all technical specifications to the black steel Air L 10 - the choice is purely aesthetic. UL Listed, 240V/1-phase, 50A breaker, 6 AWG wire. Made in Estonia by Saunum.
About Saunum
Made in Estonia - patented technology
Saunum. The only sauna heater that actively manages the air you breathe.
Saunum is an Estonian sauna technology company whose single defining innovation is the climate equalizer: a patented fan system integrated into the heater body that mixes sauna room air rather than simply heating it. Every other heater in this catalog heats the air and relies on convection and passive ventilation to distribute it. Saunum goes further - the fan actively circulates air, carries salt ions from the Himalayan reservoir through the room, enables six distinct sauna experiences through varying heat and airflow settings, and dries the sauna after use. The Air L is Saunum's largest residential model, with 190 lbs of stone capacity and 10kW output for rooms up to 494 cubic feet.
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Patented climate equalizer - air mixing, no cold feet, even oxygen and heat floor to ceiling
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190 lbs stone capacity - 6 boxes required (sold separately)
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Himalayan salt spheres included - 7 spheres in integrated airstream reservoir
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Active sauna drying - fan dries room after sessions
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6 sauna bathing styles - controlled via AirIQ WiFi app
Manuals and Documents
Warranty
Saunum limited warranty
The Saunum Air L 10 is covered by Saunum's limited warranty from the date of purchase. The warranty covers defects in manufacturing and materials under normal use conditions. The warranty does not cover damage from improper installation, use without the required stone quantity, or failure to follow Saunum's installation guidelines. A licensed electrician is required for all electrical connections. Proof of purchase from an authorized Saunum dealer is required for warranty claims. We are an authorized Saunum dealer. Full warranty terms are available at us.saunum.com.
