Eight times in a row at the very top, and it still feels special. Helios has once again been awarded the Plus X Award "Best Customer Satisfaction 2026".

Following the Best of SHK Award, our KWL EC 70 continues its award-winning streak: readers of the haustec.de online portal have chosen our decentralised ventilation unit as the winner of the Readers' Choice Award 2026 in the ventilation category.

Our new decentralized ventilation unit has been awarded the “Best of SHK Award 2026” in the ventilation sector. In the readers’ choice of the trade magazine Si, our new KWL EC 70 took first place.

Discover how ventilation becomes a true gamechanger! In our brand-new retro-style interactive experience, you can explore our decentralised all-rounder, the KWL EC 70, and its range of installation options in an interactive and exciting way.

We are expanding our successful +black collection with the DLV 125 design ventilation valve, which is now available not only in classic white, but also in elegant black.

We present our new IVRW EC 225 impulse fan - the smart solution for efficient ventilation of garages and industrial applications with low ceiling heights.

With the new KWL EC 70, we are launching a compact, decentralised ventilation solution that can do more: Thanks to the optional second room connection, the unit can be used flexibly in entire residential units.

We have expanded our digital services and now offer you an extensive BIM (Building Information Modelling) data library for download..

We take mono tube ventilation systems to the next level: With the new ELS NFC, you can choose the variant with your desired comfort function from just 5 models.

Our classics in black design: ultraSilence® ELS and MiniVent® M1/100. If you envision black for your new bathroom project, we have just the thing for you! Our reliable ventilation solutions for bathrooms and more are now also available in a deep black.

The new FRS-SDB silencer box is the latest addition to our tried-and-tested flexpipe ^plus air distribution system, which offers flexible and uncomplicated solution for the installation of KWL systems with heat recovery in single family homes and apartment buildings.

We take responsibility for our environment. Efficient products with a long service life are an important part of our efforts. However, the focus on environmentally friendly and resource-saving processes is just as important.

Welcome to HeliosOnline - your new first choice when it comes to ventilation. We have left no stone unturned and are delighted to introduce you to our new online world: Fresh, tidy and full of new features to make your daily work easier.

The new main catalogue 6.0 is now available! From A for Axial Fans to Z for Central Ventilation Boxes - with revised content and many innovations, it presents almost the entire range of Helios ventilation systems on over 600 pages.

Every year, the readers of the German "Si" trade magazine have the opportunity to vote for the best concepts, campaigns, product innovations and system solutions in the HVAC industry.

Now our Helios AIR1 units of the RH, XH and XC series have received the official Eurovent certificate. TÜV Süd and Eurovent thoroughly checked the values output in the software with regard to heat recovery, performance, energy consumption, sound level and housing characteristics.

The new, ceiling-integrated distribution element makes the installation of KWL systems with heat recovery easier than ever before! With ingenious installation details, you save valuable working time - e.g. by eliminating the complicated threading in and out of the pipes from the concrete ceiling.

It is hard to imagine modern construction projects without controlled residential ventilation with heat recovery (KWL). A KWL system not only ensures a comfortable feel-good climate, but also healthy air and satisfied customers.

Commercial kitchens are a real challenge for ventilation systems, because heat, odors and grease pollute the room air. At Helios, we combine efficient solutions with decades of expertise to provide well-coordinated, VDI 2052-compliant systems.

The iF DESIGN AWARD is a globally renowned design label that is awarded once a year. This year, 98 independent and international jurors awarded the coveted prize from among around 10,000 submissions from 52 different countries. This is the third time that one of our products has been awarded with this label. We are proud to announce that our Helios AIR1 ventilation units have been awarded the iF DESIGN AWARD 2021 in the "Product" category.

This year you will experience home ventilation with heat recovery in a new way at Helios. You can expect not only a new family of units with optimal volume flow rate and high energy efficiency, but also our brand new easyControls 3.0 unit control system.