
Zehnder comfort ventilation
Zehnder heat-recovery ventilation — fresh air with no compromises
Swiss build quality, heat-recovery efficiency up to 95 %, quiet operation and allergy-friendly filtration. Authorised design and installation of Zehnder ventilation by SmartAir technicians.
From
89 990 CZK
incl. VAT
Free consultation
Get a free Zehnder ventilation proposal
Answer 3 quick questions and we'll prepare a tailored, no-obligation quote.
What stage is your house in?
What we offer
Complete services
all in one place
Why Zehnder
Four reasons to choose Zehnder
Heat recovery up to 95 %
Zehnder’s enthalpy exchangers transfer almost all the heat – and some of the moisture – to the incoming air. Maximum comfort with minimal losses.
20+ years of Swiss build
Zehnder is a Swiss manufacturer with decades of experience. Units are designed for long life and consistent performance throughout their service life.
Quiet enough for bedrooms
Carefully sound-insulated units and intelligent fan control mean the system is virtually inaudible in the bedroom.
Filtration for allergy sufferers
ePM1 filters capture pollen, dust, smog and microscopic particles. Indoors, you breathe air cleaner than outside – relief for allergy and asthma sufferers.
Model range
Popular Zehnder models
ComfoAir Q
Centralised unit for family homes with self-learning control, high efficiency and quiet operation. The top of the Zehnder range.
ComfoAir 70 / 200
Compact units for flats, smaller family homes and renovations. Easy installation, high efficiency, quiet running.
ComfoSpot 50
Decentralised unit for a single room – ideal for flat refurbishments where ducting isn’t practical. Installs with minimal building work.
ComfoTube / ComfoWell
Ducting system with an antibacterial inner layer for hygienic, clean air distribution throughout the home.
SmartAir + Zehnder
What you get when we install for you
- ✓Certified design and installation by an authorised Zehnder partner
- ✓Manufacturer warranty, warranty and post-warranty service, and supply of original filters
- ✓Free site survey and duct design, quote within 48 hours
- ✓Control via ComfoControl and the mobile app, smart-home integration
How to order
From consultation to handover
Consultation and enquiry
Get in touch via the form or by phone. We review the layout of your home and your comfort requirements and recommend the right Zehnder model.
Duct design and quote
We survey the space free of charge, size the ducts and plan the unit and grille positions. Within 48 hours you receive a detailed quote.
Installation
We install the Zehnder unit, route ComfoTube ducting and fit the distribution components. A central system is typically installed within 1–3 days.
Handover and service
We balance airflows, set up control and modes via ComfoControl and brief you on operation and filter maintenance. We remain available for routine servicing.
Case studies
Selected projects

Apartment refurbishment, central Brno
Zehnder ComfoAir heat-recovery ventilation with full ductwork for a 3+1 flat.
FAQ
