Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Saunum Updates

U.S. SOFTWARE RELEASE AUGUST 2026

Saunum software update 1.2.0 is here.

A redesigned control panel. Clearer fan and cooling controls. Better schedules, connectivity, and day-to-day reliability.

Official release from Saunum. Organized for U.S. owners by Sauna Marketplace.

OFFICIAL RELEASE VIDEO

See the new controls in 2 minutes, 53 seconds.

Published by Saunum on August 21, 2026.

Watch on YouTube
01

A clearer control panel

Session screens, menus, and settings have been rebuilt with larger touch areas. Red items are interactive. White items show information.

02

Better fan and cooling control

Move through fan speeds more directly, run the fan during the 30-minute cooling view, and manage cooling from the mobile app.

03

Schedules and connectivity

Daily and weekly schedules are easier to manage. Regional daylight-saving time, Wi-Fi setup, and automatic reconnection are improved.

04

More reliable sessions

Saunum improved heating control, temperature monitoring, Door Open detection, and communication between the control panel and power board.

UPDATE CHECKLIST

Update the connected system together.

Saunum says both core components need version 1.2.0 for every function to work as intended.

  • Control PanelVersion 1.2.0
  • Power BoardVersion 1.2.0
  • Saunum Leil mobile appVersion 1.5.0
  • AutoLeil, if installedVersion 1.8.0
Includes

What Is Included

Includes the product and configuration selected above. Hardware, controls, stones, venting, and accessories are not included unless specifically listed.

See How It Fits for required and compatible products.

Technical Specifications

Technical Specifications

Model & Application

Model & Application
Brand

Saunum

Catalog Product

Saunum Air L Stainless - Heat-Equalizing Sauna Heater with Himalayan Salt

Heater Type

Electric sauna heater

Exact Models

AIR L 10: 4745090018479; AIR L 13: 4745090018486; AIR L 15: 4745090018493

Sauna Sizing

Sauna Sizing
Sauna Room Volume

AIR L 10: 283 to 494 cu. ft.; AIR L 13: 424 to 565 cu. ft.; AIR L 15: 530 to 812 cu. ft.

Electrical

Electrical
Supply Voltage

240 V, single phase

Rated Current

AIR L 10: 41.25 A; AIR L 13: 53.75 A; AIR L 15: 62.5 A

Dimensions & Weight

Dimensions & Weight
Heater Dimensions

AIR L 10: None W × None D × 73-95"H H; AIR L 13: None W × None D × 73-95"H H; AIR L 15: None W × None D × 73-95"H H

Heater Weight

147 lb

Stone Capacity & Performance

Stone Capacity & Performance
Rated Power

AIR L 10: 10 kW; AIR L 13: 13 kW; AIR L 15: 15 kW

Stone Capacity

190 lb; six boxes sold separately

Installation Clearances

Installation Clearances
Open-Basket Clearances

8 in from each side; 10 in from the front; use the current US manual for the complete diagram

Controls

Controls
Required Control

Saunum AirIQ Wi-Fi control unit, sold separately

Materials & Finish

Materials & Finish
Heater Body

Open stainless-steel basket

Certifications

Certifications
Certification

UL

Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

How It Fits

How This Product Fits the System

What it is used for

An electric sauna heater with Saunum air blending to reduce temperature stratification while heating the room and stones. Complete it with the exact AirIQ/control package, stone load, electrical supply, and installation clearances for the selected model.

What to plan

  • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
  • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
  • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
  • Follow the current installation manual and use a qualified installer.

Designed to work with

Model-specific replacements and compatible system components.

Other heater options

Compare these options; sizing, power, controls, clearances, and stones may differ.

Attachments

Current US Manual - Saunum Air IQ control unit - V_26_08.1

Current official Saunum US Air IQ control unit manual (V_26_08.1, August 2026), verified by Sauna Marketplace on 2026-08-19. Covers software 1.2.0: the redesigned control panel, the five-step fan button cycle, the fan-during-cooling view, and daylight-saving-aware scheduling. Rated 240V N~, heater power to 15.2 kW, to UL 875 and CSA C22.2 No. 164. This is the US document; the Saunum Leil manual is a separate EU control unit and does not apply to US installations.

Gallery

Saunum Air L Stainless – Heat-Equalizing Sauna Heater with Himalayan Salt

The Stainless Steel Saunum Air L solves the most common sauna complaint: extreme temperature variation that forces you to choose between scorching heat or inadequate warmth, delivering instead an even, oxygen-rich environment from floor to ceiling.

Developed through scientific research with Tallinn University of Technology, Saunum’s patented air-blending system delivers the perfect sauna experience, gentle, long-lasting steam with consistent temperature that lets you enjoy longer sessions without discomfort.

Built to exacting standards with premium stainless steel, a massive 198-pound stone capacity, and integrated Himalayan salt therapy, the UL-certified Saunum Air L represents a true investment in your wellness routine and overall sauna enjoyment.

Build A Quote:

Complete Your Saunum Package

Controller
None Wi-Fi Enabled Saunum Air IQ Control Package +$1,295.00 Wi-Fi Enabled Saunum Air IQ Control Package(+$1,295.00)
Rocks
None Saunum Rocks for Saunum Air L Stainless +$330.00 Saunum Rocks for Saunum Air L Stainless(+$330.00)
Safety Guard
None Saunum Air L Safety Rail +$472.00
Automatic Steam Dispenser
None Saunum Auto Leil System +$1,441.00
Aroma Set

Saunum Aroma Sets come with a ceramic bowl that sits in the Saunum salt tray.

None Grapefruit Aroma Set +$58.00 Orange Aroma Set +$58.00 Eucalyptus Aroma Set +$58.00
Add Saunum Air IQ Fan Button
None Saunum Air IQ Fan Button +$273.28

Share your selected heater size and add-ons. Prices and availability are confirmed when the link is opened.

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No worries! Enter your email, and we'll let you know as soon as it's back in stock.

Fulfillment Partner:

We partner with distributors and manufacturers who guarantee the lowest prices, fastest delivery, and additional 'whatever-it-takes' support. 

Bathing Distribution Center - Chicago
Zero Interest Payments:

Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

Pay with HSA/FSA:

We teamed up with FLEX to make HSA/FSA payments easier than ever.

Revolutionary Sauna Technology from Estonia

Inspired by ancient smoke saunas and designed by thermal engineer Andrus Vare, the Saunum Air L Stainless Steel represents a breakthrough in sauna heating technology.

The exposed stainless steel design isn’t just visually striking, it’s functionally superior, allowing heat to radiate more effectively to lower areas of your sauna while the patented air-blending system ensures even temperature distribution throughout the room.

With its massive 198-pound stone capacity, the Saunum Air L produces exceptionally soft, long-lasting löyly (steam) reminiscent of traditional smoke saunas, while the integrated Himalayan salt system enhances therapeutic benefits for both skin and respiratory health.

UL-certified for safety and built with commercial-grade components, the Saunum Air L transforms ordinary sauna sessions into extraordinary wellness experiences that can be enjoyed by the entire family.

The Science Behind Saunum’s Heat-Equalizing Technology

**1. Hot Air Capture**
The Saunum Air L’s upper intake captures scorching hot air and steam that naturally rises to your sauna’s ceiling (where temperatures can reach uncomfortable levels of 200°F+).

**2. Air Blending**
The system’s whisper-quiet fan draws in cooler, oxygen-rich air from floor level, mixing it with the hot ceiling air in precise proportions.

**3. Even Distribution**
The balanced, oxygen-enriched air is then redistributed throughout your sauna, creating a consistent temperature from head to toe, typically within just 10-15°F difference instead of the 60-80°F variation in traditional saunas.

**4. Himalayan Salt Integration**
As air circulates through the system, it passes over natural Himalayan salt spheres, releasing beneficial negative ions and salt microparticles that enhance respiratory benefits and skin conditioning.

The result is a sauna environment that allows for longer, more comfortable sessions with all the therapeutic benefits of traditional sauna bathing without the discomfort of extreme temperature stratification.

Premium Features, Exceptional Benefits

**Exposed Stainless Steel Design**
– Superior heat radiation to lower areas of the sauna
– Premium contemporary aesthetic that suits any sauna interior
– Enhanced durability in high-humidity environments
– Easy maintenance and cleaning

**Patented Air-Blending Technology**
– Even temperature from head to toe (typically within 10-15°F)
– More comfortable breathing with oxygen-enriched air
– Gentler, longer-lasting steam experience
– Ability to enjoy longer sauna sessions without discomfort

**Massive 198-lb Stone Capacity**
– Superior heat retention for consistent temperature
– Exceptionally soft, gentle löyly (steam) quality
– Authentic traditional sauna experience
– Less frequent reheating required

**Integrated Himalayan Salt System**
– Enhanced respiratory benefits during sessions
– Natural skin conditioning properties
– Subtle aromatherapeutic experience
– Customizable placement of salt spheres

**3-Speed Climate Control**
– Personalize air circulation to your preference
– Adapt to different sauna session styles
– Accommodate varying user sensitivities
– Control humidity levels more precisely

**UL Certification & Premium Construction**
– Peace of mind with rigorous safety standards
– Commercial-grade components for exceptional durability
– Designed for years of trouble-free operation
– Quality craftsmanship backed by a comprehensive warranty

FAQ

 

### Frequently Asked Questions

**What makes the Saunum Air L different from standard sauna heaters?**
Unlike traditional sauna heaters that create extreme temperature stratification (hot ceiling, cold floor), the Saunum Air L features a patented air-blending system that captures hot air from the ceiling, mixes it with cooler floor air, and redistributes it evenly throughout the room. This creates a more comfortable environment with consistent temperature from head to toe.

**Why choose the stainless steel model over the standard black version?**
The stainless steel model features an exposed basket design that radiates heat more effectively to lower areas of the sauna while providing a premium aesthetic. The open design allows for more direct heat radiation and creates a stunning visual centerpiece for your sauna.

**How complex is the installation process?**
Installation should be performed by a qualified electrician in accordance with NEC and local building codes. The Saunum Air L comes with detailed installation instructions and requires a 240V electrical connection. While the installation is straightforward for experienced professionals, we recommend using a certified Saunum installer for the best results.

**What size sauna room can the Saunum Air L heat?**
The Saunum Air L is available in three power ratings to accommodate different sauna sizes:
– 10kW model: 247-459 cubic feet
– 13kW model: 317-565 cubic feet
– 15kW model: 459-741 cubic feet

**How much maintenance does the Saunum Air L require?**
The Saunum Air L requires minimal maintenance. We recommend checking and rearranging the sauna stones approximately once per year and replacing any broken pieces. The Himalayan salt balls should be inspected annually and replaced as needed. The fan system is designed to be maintenance-free under normal use.

**Will the Saunum Air L work with my existing sauna control system?**
The Saunum Air L is specifically designed to work with the Saunum AirIQ control system (sold separately). This integration ensures strong performance of all features, including the climate equalizing fan and programmed sauna sessions.

**What’s the warranty coverage?**
The Saunum Air L comes with a comprehensive 2-year warranty for residential use when properly installed by a certified electrician. This warranty covers defects in materials and workmanship but does not cover normal wear items such as heating elements and salt balls.

**Is the Saunum Air L energy efficient?**
While the Saunum Air L does consume more energy than some basic sauna heaters due to its advanced features, many users report that the improved comfort allows them to operate their saunas at slightly lower temperatures (typically 10-15°F lower), potentially offsetting the difference in energy consumption.

**Can the Himalayan salt feature be disabled if desired?**
Yes, the Himalayan salt balls are an optional feature. The Saunum Air L functions perfectly well without them, though many users appreciate the added therapeutic benefits they provide.

Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Saunum Updates

U.S. SOFTWARE RELEASE AUGUST 2026

Saunum software update 1.2.0 is here.

A redesigned control panel. Clearer fan and cooling controls. Better schedules, connectivity, and day-to-day reliability.

Official release from Saunum. Organized for U.S. owners by Sauna Marketplace.

OFFICIAL RELEASE VIDEO

See the new controls in 2 minutes, 53 seconds.

Published by Saunum on August 21, 2026.

Watch on YouTube
01

A clearer control panel

Session screens, menus, and settings have been rebuilt with larger touch areas. Red items are interactive. White items show information.

02

Better fan and cooling control

Move through fan speeds more directly, run the fan during the 30-minute cooling view, and manage cooling from the mobile app.

03

Schedules and connectivity

Daily and weekly schedules are easier to manage. Regional daylight-saving time, Wi-Fi setup, and automatic reconnection are improved.

04

More reliable sessions

Saunum improved heating control, temperature monitoring, Door Open detection, and communication between the control panel and power board.

UPDATE CHECKLIST

Update the connected system together.

Saunum says both core components need version 1.2.0 for every function to work as intended.

  • Control PanelVersion 1.2.0
  • Power BoardVersion 1.2.0
  • Saunum Leil mobile appVersion 1.5.0
  • AutoLeil, if installedVersion 1.8.0
Includes

What Is Included

Includes the product and configuration selected above. Hardware, controls, stones, venting, and accessories are not included unless specifically listed.

See How It Fits for required and compatible products.

Technical Specifications

Technical Specifications

Model & Application

Model & Application
Brand

Saunum

Catalog Product

Saunum Air L Stainless - Heat-Equalizing Sauna Heater with Himalayan Salt

Heater Type

Electric sauna heater

Exact Models

AIR L 10: 4745090018479; AIR L 13: 4745090018486; AIR L 15: 4745090018493

Sauna Sizing

Sauna Sizing
Sauna Room Volume

AIR L 10: 283 to 494 cu. ft.; AIR L 13: 424 to 565 cu. ft.; AIR L 15: 530 to 812 cu. ft.

Electrical

Electrical
Supply Voltage

240 V, single phase

Rated Current

AIR L 10: 41.25 A; AIR L 13: 53.75 A; AIR L 15: 62.5 A

Dimensions & Weight

Dimensions & Weight
Heater Dimensions

AIR L 10: None W × None D × 73-95"H H; AIR L 13: None W × None D × 73-95"H H; AIR L 15: None W × None D × 73-95"H H

Heater Weight

147 lb

Stone Capacity & Performance

Stone Capacity & Performance
Rated Power

AIR L 10: 10 kW; AIR L 13: 13 kW; AIR L 15: 15 kW

Stone Capacity

190 lb; six boxes sold separately

Installation Clearances

Installation Clearances
Open-Basket Clearances

8 in from each side; 10 in from the front; use the current US manual for the complete diagram

Controls

Controls
Required Control

Saunum AirIQ Wi-Fi control unit, sold separately

Materials & Finish

Materials & Finish
Heater Body

Open stainless-steel basket

Certifications

Certifications
Certification

UL

Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

How It Fits

How This Product Fits the System

What it is used for

An electric sauna heater with Saunum air blending to reduce temperature stratification while heating the room and stones. Complete it with the exact AirIQ/control package, stone load, electrical supply, and installation clearances for the selected model.

What to plan

  • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
  • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
  • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
  • Follow the current installation manual and use a qualified installer.

Designed to work with

Model-specific replacements and compatible system components.

Other heater options

Compare these options; sizing, power, controls, clearances, and stones may differ.

Attachments

Current US Manual - Saunum Air IQ control unit - V_26_08.1

Current official Saunum US Air IQ control unit manual (V_26_08.1, August 2026), verified by Sauna Marketplace on 2026-08-19. Covers software 1.2.0: the redesigned control panel, the five-step fan button cycle, the fan-during-cooling view, and daylight-saving-aware scheduling. Rated 240V N~, heater power to 15.2 kW, to UL 875 and CSA C22.2 No. 164. This is the US document; the Saunum Leil manual is a separate EU control unit and does not apply to US installations.

Gallery

PLAN THE WHOLE SAUNA

The room and heater still have to work as one system.

Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.