Weiss 1 to 4 Room Heat Transfer System 150mm SKU: 181579 MODEL: FV604 Error. try again later You've successfully joined the club $ 899 each Mitre 10 SAvailable at selected stores. Check your local store for details Variants 1 room to 4 room system. Effectively and quietly moves excess heat to four other rooms in your home. Includes thermostat, inline motor, inlet vent, outlet diffusers and insulated ducting. Features and benefits Powerful and effective booster fan. Digital thermostatic control. Adjustable outlet vents.