Comfortable indoor ventilation solutions
Ducting and Accessories
A unit for all property sizes
As with everything in life, it is important to have the right tools for the job. As individual buildings come in many shapes and sizes, it is critical that each is designed to provide the same level of indoor air quality - irrespective of size or layout.
Zehnder has a comprehensive range of units which can be tailored to meet the requirements of a broad spectrum of dwellings from smart, urban apartments to large, luxury dwellings.
The impact of poor indoor air quality on health is increasingly in the news and the strict performance requirements now have to be met for new dwellings in urban areas.
The EU Directive 2008/50/EC sets out the stringent levels for NO2 which are being exceeded in citites such as London, Birmingham and Manchester
High level NOX filtration combine with a Heat Recovery System is an ideal solution to meet these high level planning and air quality requirements
The Goldilocks problem…
Overheating hasn’t always been an issue with UK homes - low levels of insulation and gaps in the building envelope have provided accidental ventilation. Today’s new homes are highly insulated and tested for their airtightness. This is causing a rise in reports of unpleasantly high temperatures within homes - and this is whilst our summers are still relatively moderate.
The summer by-pass function in a MVHR units is a crucial in helping reduce discomfort due to excessive heat in the summer months – basically the unit needs to stop doing one of its core jobs of recovering and reusing heat!
Today there are many different types, so it shouldn’t just be a tick boxing exercise that the unit has it or not.
First you must understand what the definition of a TRUE summer by-pass is and then how it is activated when it gets hot!
What does enthalpy involve?
The Zehnder Enthalpy Exchanger recovers both the thermal and the latent energy from the stale air extracted from wet rooms around the home. This additional energy, which would otherwise have been lost, is transferred into the incoming fresh air stream before being supplied to habitable rooms.
Choosing the enthalpy exchanger, rather than the standard heat exchanger, means that the unit becomes an Energy Recovery Ventilation (ERV) system, as opposed to solely a Heat Recovery Ventilation (HRV) system.
Products and systems that are full of advantages.
Zehnder truly believes that if you are creating a system solution then you need integrated produts which are designed to fit together.
ComfoAir MVHR units can be installed in conjunction with sub soil exchangers and helps improve the efficiency of the system in airtight homes by utilising natural energy sources
Passive House and Low Energy Dwellings
We are experienced in high performance housing and how to design units that ensure that the house of tomorrow is a reality for today. We are members of Minergie, the AECB and a founder member of the Passivhaus trust. We have a range of Passive House accredited MVHR units available for a wide range of projects
Noise from an MVHR system is a symptom of incorrect design, poor installation and failure to maintain the system throughout the year.
This doesn’t have to be the case and the costly call backs and re-works post completion can be eliminated by ensuring you follow the principles of designing out noise at the beginning of each project.
We provide here our best practise reccommendations to ensure MVHR is delivered without nuisance noise
Our premium, quality assured ducting ranges are designed to make installation and Building Regulation compliance easier. They improve performance and, most importantly, have been designed with long-term effectiveness and maintenance in mind.
The Zehnder ComfoPipe range of intake and exhaust air systems is an important part of the ventilation system, as it complies with building energy efficiency requirements, providing planning reliability at the same time. The Zehnder ComfoPipe range provides superb insulation meeting high standards with regard to the installation of outside and exhaust air systems within the thermal building envelope.
Zehnder ComfoAir units can be simply and effectively controlled to ensure optimal performance around the clock. The controllers can be linked with a variety of proprietary sensors to enhance comfort and offer total flexibility.
Fresh air promotes well-being and a healthy lifestyle. Poor indoor air quality can lead to a rise in asthma and other allergic symptoms due to the levels of allergens such as pollen, dust mites, VOCs and mould.
Our whole house ventilation systems can be fitted with a range of filters to suit the location of the dwelling and its occupants.