100mm-4" Rigid Fast fix Duct - White control_humidistat it is activated by a

it is activated by a rise in the level of humidity and it can be connected to a switch

a on constant)

Zehnder ComfoAir 155CM-GB (also know as Greenwood Vireo HR155CM) is the latest Heat Recovery Unit suitable for apartments and small houses - for inline/ceiling mounting unit with capacity for properties up to 125m2 it can easily be installed in a kitchen cupboard

Its Smarter because in contrast to traditional timers

100mm-4" Rigid Fast fix Duct - White control_humidistat it is activated by aFast fit duct system with white external grille Allows installation to be completed safely from inside of a building by using the push fit system. The seal between the external grille and the duct provides a weatherproof seal. It is installed by pushing through a 117mm diameter hole to locate the external grille to the outside of the building