Guide
Here you will find valuable tips on window drives and building automation
GEZE ECchain alternative: 230 V chain drive from stock in Hamburg
The GEZE ECchain is a 230 V chain actuator for daily ventilation, mainly in residential buildings. If it is defective, Vent Systems has a...
Aumüller KS2 and KS4 alternative: matching chain drive from stock
The Aumüller KS2 and KS4 chain actuators are slim drives for bottom-hung and top-hung windows, for ventilation and smoke extraction. If one is defective, you will find...
LAMILUX dome light motor replacement: spindle drive as an alternative
LAMILUX rooflights such as the F100 are opened for ventilation with an electric spindle actuator, in 230 V or 24 V. If the motor is defective,...
WindowMaster WML 825 alternative: chain drive for VELUX roof windows
The WindowMaster WML 825 is a chain actuator concealed in VELUX roof windows. If it is defective, you can fit the window with a...
GEZE E 212 alternative: open fanlights electrically without rods
The GEZE E 212 is an electric linear actuator that drives mechanical fanlight openers such as GEZE OL 90, OL 95 N or OL 320. If it is defective...
GEZE Powerchain alternative: powerful chain drive for large sashes
The GEZE Powerchain is used on large, heavy window sashes, often also in smoke and heat exhaust systems. If it is defective, Vent Systems offers...
GEZE Slimchain alternative: matching chain drive from stock in Hamburg
Your GEZE Slimchain chain actuator is defective and you need a replacement fast? For most bottom-hung and top-hung windows, Vent Systems has...
Connecting a 24 V window actuator to 230 V mains
A 24 V window actuator must never be connected directly to 230 V. It needs a controller or power supply that converts the mains voltage into 24 V...
Calculating thrust: which window actuator is strong enough?
Before ordering a window actuator, you should know how much force it needs. If the actuator is too weak, the window will not open or...