100mm-4" Rigid Fast fix Duct - White control_humidistat 2 or Outside the unit

2 or Outside the unit comes pre-assembled and is easy to install in both new build or when replacing an existing fan

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

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

Mould requires moisture and warmth to grow

To achieve the longest duct run rigid ducting should be used and not flexible ducting

100mm-4" Rigid Fast fix Duct - White control_humidistat 2 or Outside the unitFast 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