Discover the Holetherm Evolution system – the ultimate flue gas exhaust system and our flagship model!

With its innovative dual-pipe construction, Holetherm Evolution offers unparalleled safety. The inner and outer pipes move independently, providing maximum flexibility and protection. Even in the event of a chimney fire, the high-quality insulation material remains intact, ensuring your chimney stays safe time and time again.

And that's not all! The BENG attachment (only for our flagship system Evolution), an essential part of the Holetherm Evolution system, ensures a seamless and safe installation against combustible materials. This keeps warmth inside and cold outside – guaranteeing optimal comfort!

The Quality of Holetherm Evolution

• LEWO offers a 30-year warranty on the Holetherm Evolution flue gas exhaust system.
• This warranty even covers chimney fires.
• High-quality matte finish.
• Also available in black (RAL 9005).
• Extensive range of solutions for almost every situation.
• Temperature classification T600, N1, G50.

Want to learn more about the BENG penetration? Read on and discover how Holetherm Evolution makes your home safer and more energy-efficient!

Click here: More information about Holetherm Evolution (EVO)

Construction schedule