
Saunum Air L 15 – Stainless Steel
Overview
The Saunum Air L 15 is a high-capacity electric heater with a patented climate-regulating system, built for larger, more intensively used saunas. Its big stone volume and air-blending technology produce soft, long-lasting steam that's distributed evenly throughout the room.
- Patented air-blending for even temperature and breathability, head to toe
- Massive 190 lb stone capacity for soft, luxurious steam
- Sized for big rooms from 530 to 812 cu. ft.
Key Features
Design & Build
- Scandinavian design with an elegant stainless steel finish and premium materials
Heating & Performance
- Revolutionary Air Mixing Technology — no more cold feet; patented blending of cool, oxygen-rich floor air with hot ceiling air for even temperature and breathability head to toe
- Massive 190 lb stone capacity for softer, even heat and luxurious steam (requires 6 boxes, sold separately)
- Engineered for water-tossing; the fan system also helps dry your sauna afterward
- For sauna rooms from 530 to 812 cu. ft.
Salt & Aroma
- Himalayan salt reservoir propels salt ions throughout the sauna for added health benefits
- Optional aromatherapy infuses scent into the steam
Certifications
- UL certified — engineered to exceed strict UL standards
Do your research first
This is a big purchase. We'd rather you get a fair look at the market — compare with these trusted sources before you decide.

About Saunum
Even heat, floor to ceiling
Saunum's award-winning Climate Equalizer technology actively circulates heat and humidity throughout the room, eliminating the harsh temperature gap between floor and ceiling found in conventional saunas. The result is a gentler, more even, more breathable heat — engineered and built in Estonia.
Every Detail
Specifications & Details
Specifications
Heat Equalizing System
Model: AIR L 15 SS
Certification/Global Safety Rating: UL (Underwriters Laboratories)
Heat/Steam Equalizer Module: 3-Speeds, Whisper-Quiet Operation
Ceiling Hot Air Intake: 17.72" x 4" (45 x 10 cm)
Cool Air Intake Type: Adjustable Valve, Side-Mounted, 12" (30 cm) Off Floor
Cool Air Intake Size: 2" x 2.75" (5 x 7 cm)
Blended Air Output: 4.31" x 14.13" (11 x 36 cm)
Himalayan Salt and Aroma Tray Type: Removable, Slotted
Himalayan Salt and Aroma Tray Size: 16.5" x 4.5" (42 x 11 cm)
Sauna Heater System
Model: AIR L 15 SS
Certification/Global Safety Rating: UL (Underwriters Laboratories)
Heater Body Style: Stainless Steel
Heating Elements: Incoloy (Stainless Steel)
Heating Element Protection: Air Tunnels, Slotted Stainless Steel, Three
Room Size: 530-812 cu. ft. (15-23 Cubic Meters)
Wattage Rating: 15000
Operating Voltage: 240VAC
Phase: Single
Amperage: 62.5
Weight: 147 lbs (67 kg)
Shipping Weight with Stones: 345 lbs (156.5 kg)
Product Width: 18.3" (465 mm)
Product Depth: 18.1" (460 mm)
Product Height: 73" - 95" (1850-2450 mm)
Minimum Ceiling Height: 73" (1850 mm)
Stone Capacity: 190 lbs (85 kg)
Stone Size: 2" to 4" (5-10 cm)
Circuit Breaker: See Installation and Operation Manual
Wire Size to Power Unit: #4 +N + G
What's Included
- 15kW Sauna Heater
- Himalayan Salt Spheres (7)
- Himalayan Salt Tray
- Hot Air Intake Cap
- Hot Air Intake
- Stone Basket
- Air Outake Grille
- Cool Air Intake Valve
- Protective Grill
- Temperature Sensor
- Installation and Operation Manual
- 2-Year Warranty (Consumers Use)
Sauna Compatibility & Sizing
Designed for sauna rooms from 534–812 cubic feet. Operates on 240V single-phase.
The Saunum Air L 15 – Stainless Steel suits traditional sauna rooms, including SaunaLife, Dundalk LeisureCraft, and ThermaSol barrel, cube, and cabin saunas — choose the model whose cubic-foot rating matches your room volume. Measure length × width × height of your sauna interior to find the right kW.
Shipping & Warranty
Shipping: Ships free via freight carrier with curbside delivery to the contiguous U.S. Most orders dispatch within a few business days.
Warranty: Manufacturer's limited warranty included. Backed by Sauna Co. customer support.
Many heaters require a compatible control unit and sauna stones, sold separately — contact our specialists for the right pairing.
Resources
Documents & Manuals
Installation & User Manual
Watch & learn
Installation Guide
Follow along with this step-by-step installation and assembly walkthrough so you know exactly what to expect. Our team is one message away if you need a hand.
to a friend
The Air L 15 is a beast — 15kW heats our big 6-person cabin sauna fast and the Saunum air circulation keeps it even throughout. The stainless steel finish is gorgeous and easy to keep clean. Needed a heavy circuit so budget for the electrical.
Most large heaters scorch the top and leave the bottom cool. The Air L 15 actually distributes evenly thanks to the air system. Stainless looks premium. Highly recommend for big saunas.
Performs beautifully in our large sauna. Just know 15kW needs serious electrical — we had to upgrade the panel. Once done it's flawless and the stainless finish is striking.
The build quality is excellent and the air circulation makes a noticeable difference. Stainless steel matches our modern sauna perfectly. Heats fast.
Finally a heater that can handle our big cabin and keep the heat even. Saunum's circulation tech is the real deal. Stainless looks great and cleans easily.
The heater itself is superb and the even heat is noticeable. Three stars because installation was a bigger project than expected — the 15kW draw required a sub-panel and an electrician. Once running it's fantastic.



