This system is designed to exhaust damp trapped air from the sub-floor and introduce fresh air in through existing or new passive vents. Ultrafans are run off a 12 volt transformer and timer run 9am to 9pm 

Installation

Easy Handy man, no licence required. Fan is fitted into external wall and ducting is connected and suspended to under side of floor to draw air from centre of the area to be ventilated. The timer and transformer are plugged into a power point above floor and a small hole is drilled in floor for wire.

Running costs

$10 per year

Dimensions

W: 270mm x D: 200mm x H: 220mm (cut out W 240mm x H 175mm) 

Exhaust

Exhausts approximately 5800 Litres per minute, this will cover 70m3 (width x depth x height) of open space to give 5 air changes per Hour.

Purchase Costs (includes GST)

Includes Fan, timer, transformer, 5m wire and 6m of 150mm ducting

Optional Extras

12 volt wire, 150mm ducting and passive vents