The Zehnder ComfoAir Q, from Paul Heat Recovery, is controllable remotely via iPad and iPhone
An EnviroVent installer fitting an MVHR central unit
As houses have become more airtight, in some cases far surpassing Building Regulations standards, there is more of a need for whole-house systems that provide mechanical ventilation. These are now replacing conventional methods, such as trickle vents and individual extractor fans in moist areas like kitchens and bathrooms.