EF40 is the new SIT fan for condensing boilers with premix burners. Among the SIT fans for residential applications up to 40kW, EF40 represents the high-level solution thanks to its performance in terms of modulation, compactness, and efficiency. 

Version with integrated electronics at 230 VAC supply voltage, standard mixer inlet.

The main pluses are: 

-High modulation range 1:20 

-The most compact design in its class 

-High efficiency 

-H2 ready product