Saunum Releases Leil Software Update With Better AutoLeil Stability and Fan Control
The update focuses on everyday usability: smoother navigation, more reliable updating, better lighting and ventilation controls, and more consistent humidity behavior.
Saunum's Leil control system manages sauna settings including time, temperature, ventilation and session behavior.
Saunum has released a new software update for its Leil control system, focused on day-to-day usability rather than a flashy product launch. For owners already using Leil, the headline is straightforward: smoother navigation, more reliable updates, and better in-session control over fan and climate behavior.
The update also improves the update process itself, which matters more than it sounds. Control software only helps if it is easy to keep current, and Saunum says this release reduces friction in that maintenance cycle while refining lighting and ventilation menus.
Fan Access While Screen Is Locked
The most practical improvement may be fan behavior: users can now run the fan even when the screen is locked. That removes an annoying mid-session step and makes it easier to adjust air circulation without interrupting the flow of a session.
AutoLeil Gets More Stable Session Control
Saunum says the update improves AutoLeil precision and stability, with more consistent humidity behavior based on user settings. AutoLeil is Saunum's automatic water-dosing accessory, designed to feed water to heater stones through the control ecosystem and help maintain a steadier sauna climate.
For broader context on Saunum's current direction, see our earlier coverage of the Saunum Air Perfect U.S. launch, which remains the company's most significant release in the past year.
That same usability trend shows up in smaller accessories and airflow details, including in-sauna fan controls and guidance components that help direct mixed air where bathers feel it most.
How to Install the Update
Saunum says Leil owners can install this release directly from the remote panel. Both the control panel and power board need updates; the order does not matter. Exact steps can vary by installed software version.
This is a practical quality-of-life release. It is not new hardware, but it should reduce interruptions and deliver steadier humidity and airflow behavior once installed. For official product and support resources, visit Saunum and Saunum U.S..
Arlene Scott
Senior Wellness Correspondent & Hospitality Consultant
Arlene Scott brings over fifteen years of reporting and consulting experience across energy infrastructure, sustainable design, and thermotherapy-focused hospitality.
Full byline
Arlene Scott is a Senior Wellness Correspondent for SaunaNews.com, bringing over fifteen years of experience at the intersection of energy infrastructure, sustainable design, and thermotherapy. Her work focuses on the physiological benefits of passive heat therapies and the sustainable integration of sauna culture into modern wellness routines.
Arlene's background is rooted in the clean energy transition. She was a founding writer at MicrogridMedia.com, where she covered the technical and economic viability of desalination projects, microgrid deployments, and distributed renewable energy systems. During the mid-2010s, she was a regular contributor to Greentech Media (GTM) during its independent era — prior to the Wood Mackenzie acquisition in 2016 — reporting on the early integration of thermal energy storage and sustainable infrastructure.
Transitioning her focus from macro-energy systems to human-scale wellness, Arlene now applies her technical background to the hospitality sector. She operates as an independent consultant, advising boutique hotels and eco-resorts on the design, energy efficiency, and historical authenticity of commercial sauna and thermal spa installations. Her consulting work ensures that high-end wellness facilities balance traditional Nordic bathing principles with modern sustainable engineering.
Arlene holds a specialized certification in Applied Thermic Wellness from the Nordic Institute of Passive Heat Studies (NIPHS) and is a recognized associate member of the International Sauna Association (ISA). When she isn't reviewing the latest innovations in infrared technology or consulting on a new resort project, Arlene can be found tending to her own traditional wood-fired sauna in the Pacific Northwest. You can read her complete archive of essays on energy, wellness, and sustainable living at www.arlenescott.com.
