Ventilation. Plan Your System

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House Size. The first step when specifying a SmartVent system is how many square metres the home is excluding the garage. A secondary (but just as important) factor is the stud height. The square metre (m2) used in the selection charts is based on a stud height of 2.4m.

House Layout. The layout and orientation of the home, the way it is heated, as well as the construction all have an influence on the system to specify.

Two Storey Houses. Access to lower floors can be achieved through cupboards, wardrobes and other voids. Consider increasing the size of the kit specified if there is more than one duct run required to a lower floor. It is better to specify a larger or two-fan system particularly if the ground floor is concrete block with aluminium joinery and/or a large area.

Outlets. SmartVent outlets should be placed in your living areas and bedrooms, ideally in a central position. If necessary to offset do so on the window side of centre. SmartVent Synergy2 and SmartVent Balance return air should be placed in the hallway.

Place the outlets at least one metre from any vertical surface (wall) and away from the entrance to an ensuite or bathroom. In a living room try to install an outlet near the centre of the room.

A centrally placed outlet in the hall is not recommended as there is no guarantee the bedroom doors will be kept open overnight or that sufficient amounts of air would enter the bedroom, which are areas where condensation is often a problem.

Ducting Runs. Once you have decided the outlet locations, connect ducting to the back of the diffuser, then work towards the centre of the home to ascertain a central position for the fan, preferably above a utility room, bathroom or similar. Positioning fan above bedrooms is not recommended. Avoid long duct runs by placing the fan centrally.

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