Whole house mechanical extract systems extract water vapour and smells at source from the “wet rooms”, ducting it away to a central extraction unit which in turn ducts the stale air directly to the outside of the building. Replacement fresh air is introduced into the other rooms via trickle ventilators or an alternative source of controlled ventilation, such as designed air inlets or passive ventilators and then circulates throughout the home.
The system runs continuously on low speed, the boost facility can be activated via various controllers and sensors depending upon the unit. Central extraction systems ensure the right atmosphere with minimised ventilation and maximum retention of valuable warm air in wintertime.
