Saunum AIR 7 Review: The Best Sauna Heater for Even Heat Distribution

Saunum AIR 7 electric sauna heater image with a sleek wooden sauna room in the background, illuminated softly, showcasing the unique design of the model.

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Imagine stepping into your sauna where every corner breathes the same invigorating warmth—where the discomfort of uneven heat and oxygen levels becomes a thing of the past.

That’s what the Saunum AIR 7 does to your sauna. This isn’t just any sauna heater—it’s your ally in turning every sauna session into a perfectly balanced retreat for your well-being.

Experience a sauna that adapts to your preferences and delivers a consistent, luxuriously even heat every single time.

In this expert Saunum AIR 7 Review, discover how this sauna heater’s advanced technology delivers perfect, even heating every time.

Key Takeaways

  1. TL;DR: Jump straight to my Personal Experience and Verdict on the Saunum AIR 7.
  2. Even Heat Distribution: The patented air blending technology ensures consistent warmth throughout the sauna.
  3. Health Benefits: Features a Himalayan salt tray and aromatherapy options for enhanced relaxation and improved breathing.
  4. User-Friendly Controls: Wi-Fi control allows you to preset and manage your sauna remotely.
  5. Stylish Design: Available in sleek Nordic black and stainless steel options to complement any sauna decor.
  6. Quiet Operation: The integrated fan operates quietly, maintaining a peaceful sauna environment.
  7. Suitable for Medium to Large Saunas: Ideal for medium to large home saunas, offering robust and consistent heating.

Overview of the Saunum AIR 7 (6.4kW) Electric Sauna Heater

Image Credit: Amazon

Gone are the days of dodging hot spots or shivering in cold corners. The Saunum AIR 7 makes every part of your sauna equally inviting, thanks to a clever little trick it does with the air.

Here’s what it’s all about– the AIR 7 mixes up the hot air that naturally rises to the top with the cooler air hanging out at the bottom. It’s like it stirs up a perfect balance so that the warmth wraps around you evenly from head to toe. You can finally just relax and enjoy the warmth, no matter where you sit.

And let’s talk looks—this heater isn’t just about performance. Whether you go for the sharp Nordic black or the sleek stainless steel, the Saunum AIR 7 is designed to impress. It’s more than a heater; it’s a piece of your home’s charm, enhancing the vibe of your space while it works its magic.

I’ve rated the Saunum AIR 7 as the best sauna heater for uniform heating in my roundup review articles on the top sauna heaters and the top electric sauna heaters in the market today.

So, why settle for just heat when you can have the whole warm and cozy experience? The Saunum AIR 7 brings that, making every sauna session something to look forward to.

Saunum AIR 7: Detailed Specifications

Feature Details (Solid Steel Body Option)
Country of ManufactureMade in Estonia
Brand ReputationSaunum is a luxury brand renowned for its innovative sauna heating technology.
Power6.4 kW
Amperage26.67 Amps
Product Dimensions12.41 x 18.31 x 71.95 / 94.49 inches
Heater Weight115 lbs
Stone Capacity132-154 lbs
Sauna Capacity177-247 cubic feet
Temperature Range104-194°F
ControlsWi-Fi Control
Himalayan Salt & Aroma TrayRemovable, slotted
Model VariantsAlso available in 4.8 kW and 9.6 kW options
Safety CertificationUL Certified
Warranty2 years

Features & Pros of the Saunum AIR 7 Electric Sauna Heater

Packed with features and benefits that make every session comfortable and enjoyable, here’s what sets the AIR 7 apart:

  • Patented Air Blending Technology with an integrated fan: This advanced system mixes hot air from the ceiling with cooler air from the floor, ensuring even temperature distribution throughout the sauna.
    • Benefit: No more hot heads and cold feet; enjoy consistent, comfortable heat and better air circulation.
  • Multiple Design Options: Available in sleek Nordic black and stainless steel basket design options.
    • Benefit: Matches any decor and adds a stylish touch to your home.
  • Remote Control Capability: Equipped with optional Wi-Fi controls through the AirIQ system, allowing you to preset and adjust your sauna settings remotely.
    • Benefit: Convenience of having your sauna ready when you want it, right from your phone.
  • Large Stone Capacity: Can accommodate 132 to 154 lbs of sauna stones, enhancing heat storage for smoother, more balanced heat and steam.
    • Benefit: Longer-lasting heat and a better sauna experience.
  • Himalayan Salt & Aroma Tray: Features a removable tray for Himalayan salt and aromatherapy options, adding health benefits like improved breathing and relaxation.
    • Benefit: Enhances the sensory experience and health benefits of your sauna sessions.
  • Certified Safety Features: UL certified, including overheating protection with air tunnels that protect and extend the life of the heating elements.
    • Benefit: Peace of mind with high safety standards.
Saunum AIR 7 Electric sauna heater (stainless steel basket design) image with a modern sauna in the background with rich wooden paneling, wooden benches, and essential sauna accessories like a wooden bucket and ladle.
  • Energy Efficient: Operates efficiently within a range of 177 to 282 cubic feet, making it suitable for most home sauna sizes.
    • Benefit: Saves on energy costs while providing effective heating.
  • Elegant European Design: Scandinavian aesthetic and quality materials appeal to design-conscious users.
    • Benefit: Adds a touch of elegance to your home.
  • Room Temperature Sensor: Ensures optimal operation conditions and enhances safety by monitoring the sauna’s internal temperature.
    • Benefit: Maintains a safe and comfortable environment.
  • Dry Sauna Capability: Engineered for water tossing with a patented fan system that helps dry the sauna after use.
    • Benefit: Simplifies maintenance and improves turnaround time.
  • Telescopic Air Intake Feature: Adjusts according to the sauna ceiling from 71.48 to 94.49 inches to draw in the optimal amount of air needed for efficient heating.
  • Continuous Flow Air Mixing: Maintains a continuous air flow, improving the overall sauna experience by keeping the temperature and oxygen levels balanced.
    • Benefit: Consistent and comfortable sauna environment.
  • Versatile Sauna Bathing Styles: By adjusting airflow, temperature, and steam, you can customize your sauna experience with six distinct styles, including the intense heat of a Russian Banya and the soothing warmth of a Yoga Sauna.
    • Benefit: Tailor each session to fit your preferences for the ultimate relaxation.

With these features, the Saunum AIR 7 ensures that every sauna session is a perfect blend of comfort and style.

Cons of the Saunum AIR 7

  • Higher Cost: The advanced technology and additional features come at a higher price point compared to some other sauna heaters, which might be a consideration for budget-conscious buyers.
  • Installation Complexity: While it is DIY-friendly, the installation involves several steps and might require professional assistance, especially for electrical connections.
  • Noise from Fan: Some users might find the noise from the integrated fan noticeable, although it operates quietly compared to other systems.
  • Limited Long-term Data: As a relatively new product in the market, there is limited long-term performance data available, which might be a concern for some potential buyers.

Saunum AIR Series Sauna Heaters: All Models with Comparison & Design Options

The HUUM Drop series, includes the Saunum AIR 5, Saunum AIR 7, and Saunum AIR 10, all offering versatile options for any sauna enthusiast. Each model in this series combines innovative design with advanced technology to provide an exceptional sauna experience.

Let’s compare all the models to make sure you choose the right one for your sauna.

Comparison Table (Solid Steel Body Option)

Feature Saunum AIR 5Saunum AIR 7Saunum AIR 10
Power4.8 kW6.4 kW9.6 kW
Amperage20 Amps26.67 Amps40 Amps
Product Dimensions18.31″ W x 12.41″ D x 71.95″ – 94.49″ H18.31″ W x 12.41″ D x 71.95″ – 94.49″ H18.31″ W x 12.41″ D x 88.90″ – 94.49″ H
Heater Weight 115 lbs115 lbs121 lbs
Stone Capacity132-154 lbs132-154 lbs198-231 lbs
Sauna Size106-177 cubic feet177-247 cubic feet247-353 cubic feet
Minimum Ceiling Height71.95″71.95″88.90″

Model Suitability

  • Saunum AIR 5 (4.8 kW): Perfect for smaller home saunas, providing efficient heating in compact spaces. Ideal for those who want a high-quality sauna experience without needing a large space.
  • Saunum AIR 7 (6.4 kW): The most adaptable choice, great for medium-sized saunas. It offers strong heating to ensure a consistently enjoyable sauna session.
  • Saunum AIR 10 (9.6 kW): Best suited for large home saunas or light commercial use. This model delivers powerful heat, maintaining excellent performance even in bigger spaces.

Use my sauna heater calculator to calculate the perfect sauna heater size for your sauna.

Traditional sauna heater with hot stones encased in a wooden guard at the center of a sauna room, surrounded by beautifully crafted wooden benches that enhance the warm ambiance.

Design Options: Nordic Black and Stainless Steel Basket

Available in two stylish options—these heaters are as aesthetically pleasing as they are functional.

  • Nordic Black Solid Steel Body: This sleek, modern finish adds a touch of sophistication to your sauna, blending seamlessly with contemporary interiors. (All the specifications mentioned in this article relate to this model)
  • Stainless Steel Basket: The open basket design not only looks great but also showcases the sauna stones, giving your sauna a traditional yet stylish appeal.

Whether you prefer a modern or classic look, the HUUM Drop series has a model that will fit right into your sauna space, making it both functional and stylish.

Installation Guide for the HUUM Drop 6 Sauna Heater

Installing the HUUM Drop 6 Sauna Heater can be a straightforward process if you follow these steps carefully. Always remember to hire a licensed electrician for any electrical work and adhere to local building codes.

Step-by-Step Installation

  1. Unpack the Heater: Start by carefully opening the box. You’ll find the flue cap, stone basket cover, cables, salt spheres, stone baskets, and heat deflector.
  2. Prepare the Heater: Remove the lower stone basket and air tunnels surrounding the heating elements. Take off the front panel of the heater and unpack the telescoping flue. Detach the temperature sensor cable connected to the flue.
  3. Position the Heater: Place the heater on its back and remove the bottom panel. Feed the cables through the designated hole and connect them to the terminals according to the electrical diagram. Reattach the bottom panel once done.
  4. Install the Flue Cap: Mount the flue cap where the wall meets the ceiling. Assemble the telescoping flue and insert it into the heater’s flue socket, ensuring a snug fit.
  5. Secure the Heater: Hang the telescoping flue onto the mounted flue cap. Install the reflective plate on the flue behind the elements to help radiate heat into your room. Reattach the lower stone basket by hooking it behind the flue.
  6. Add the Stones: Carefully fill the lower basket with stones, ensuring they are not placed inside the air tunnels. Add the upper stone basket and continue filling it with stones.
  7. Final Assembly: Fasten the flue to the wall with screws, and place the cover plate into the slot at the top of the radiation plate. Install the protective grill over the stones. Set the salt sphere tray in place and add the salt spheres if included. Replace the front panel to complete the assembly.
  8. Electrical Connection: Ensure all electrical connections are secure and follow the manual for any additional wiring instructions. Remember to use the appropriate wire sizes and connectors as specified.
  9. Testing: Once installed, test the heater to ensure it operates correctly. Use the air blending valve to tailor the blend of air and oxygen inside your sauna room.
Two men relaxing in a wooden sauna, sitting on bench towels around their waists, in a well-lit sauna room with wooden walls and benches.

Installation Tips

  • Hire a Professional: Always hire a licensed electrician for any electrical work to ensure safety and compliance with local codes.
  • Read the Manual: Carefully read the installation and operation manual before starting. It contains essential information specific to your heater model.
  • Remove Plastic Film: Don’t forget to remove any plastic film from the stainless steel parts to avoid any burning smell or damage when the heater is first used.
  • Check Clearances: Ensure you have the proper clearances around the heater as specified in the manual to avoid overheating and ensure safety.
  • Use Quality Stones: Invest in high-quality sauna stones that are suitable for your heater model to ensure the best performance and longevity.
  • Test After Installation: After installation, run the heater for a short period to ensure everything is working correctly and there are no unusual sounds or issues.

Following these steps and tips will help you install your HUUM Drop 6 Sauna Heater smoothly and safely, ensuring you can enjoy its benefits without any hassle.

User Feedback and Reviews

The Saunum AIR 7 Electric Sauna Heater has garnered positive feedback from users who appreciate its innovative features and performance. Here’s a summary of what real users are saying:

  • Balanced Heating Experience: “Without exaggeration, I can say that now the ‘worst sauna ever’ has become the best electric sauna I’ve ever been to.” – Comment from a user highlighting the significant improvement in heat distribution after switching to the Saunum AIR 7.
  • Comfort and Safety: Many users appreciated the heater’s ability to maintain oxygen levels. One comment mentioned, “You can actually breathe normally and comfortably, which allows you to stay there for a longer period.”
  • Remote Control Convenience: The Wi-Fi control option is a hit among users who enjoy the convenience of preheating their sauna via an app. One such comment came from a user who wants his sauna ready when he returns from skiing.
  • Quiet Operation: The integrated fan’s whisper-quiet operation was praised, with users noting that it doesn’t disrupt the relaxing ambiance of the sauna.
  • Health Benefits: Users enjoyed the added health benefits such as improved breathing and relaxation, due to the inclusion of Himalayan salt tray and aromatherapy, enhancing their overall sauna experience.
  • Energy Efficiency: The Saunum AIR 7’s efficient operation, suitable for a range of sauna sizes, was another positive point. Users found it to be effective without excessively increasing energy bills.
  • Installation: Some users found the installation process to be complex and recommended hiring a professional electrician, especially for the electrical connections.
  • Maintenance: Regular maintenance, such as stone replacement and cleaning, was found to be straightforward.

Personal Experience and Verdict

Image Credit: Amazon

Personal Testing Insights

Setting up the Saunum AIR 7 Electric Sauna Heater was a bit of a task, especially with the electrical connections, but the detailed manual and videos made it doable. Once installed, the first session was impressive.

What I Liked

  • Balanced Heat: The air blending technology ensures even temperature distribution.
  • Health Boost: The Himalayan salt tray and aromatherapy enhance relaxation and breathing.
  • Smart Controls: The Wi-Fi controls allow for easy preheating from your phone.
  • Stylish Design: Both Nordic black and stainless steel options look great.
  • Quiet Fan: The fan operates quietly, maintaining a peaceful atmosphere.

What I Didn’t Like

  • Tricky Installation: The setup can be complex, especially the electrical work. Professional help is recommended.
  • High Cost: It’s on the pricier side, and the required sauna stones add to the cost.
  • Limited Long-Term Data: As a new product, long-term performance data is limited.
  • Ideal for those wanting a premium sauna experience with advanced features.
  • Perfect for medium to large home saunas.
  • If you value design, health benefits, and remote control convenience, this heater is for you.
  • Budget-conscious buyers might need to consider other options.

My Take

The Saunum AIR 7 is a worthy investment if you want a top-notch sauna experience.

  • Its air blending technology delivers even, comfortable heat, while the Himalayan salt and aromatherapy features add health benefits. 
  • The Wi-Fi controls are a major convenience, allowing you to set up your sauna before you even step in.
  • Though installation can be tricky and the cost is high, the benefits make it worth it.
  • The Saunum AIR 7 mixes cutting-edge features, health perks, and stylish design seamlessly.
  • If you want to take your sauna sessions up a notch, this heater is the way to go.
  • Choose the Saunum AIR 7 for a relaxing and health-enhancing sauna journey.
Cozy sauna interior featuring wooden walls and a bench, with towels, a wooden bucket, and candles, creating a serene and inviting atmosphere.

Alternatives to the Saunum AIR 7

If the Saunum AIR 7 isn’t quite what you’re looking for, here are two premium alternatives:

  1. HUUM Drop 6 with UKU W-Fi: The HUUM Drop 6 offers consistent heating with a sleek design. Winner of the Red Dot Design Award winner in 2015, it’s perfect for those who appreciate both functionality and elegance.
  2. HUUM Cliff 6kW with UKU Wi-Fi: The HUUM Cliff 6kW is a powerful floor-standing heater. With its sleek look and Red Dot Design award-winning (2021) build, it’s a fantastic fit for any sauna.

Offering both style and performance, these heaters are strong options to consider if the Saunum AIR 7 doesn’t meet your needs. Choose the one that fits your sauna setup and enhances your wellness routine.


Perfect for medium to large saunas, it offers even heat distribution, health benefits, and the convenience of modern tech. Sleek and silent, this heater will fit perfectly into any modern sauna setup.

Based on testing and research, I highly recommend the Saunum AIR 7 for anyone looking to elevate their sauna experience with advanced features and a stylish look.

If you want to explore more options, please have a look at our detailed reviews of some modern, sleek, and high-performance sauna heaters below:



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