Compactness, versatility and the optimum geometry of all electronic and mechanical components inside the burner, ensure minimum overall dimensions and higher efficiency. This light oil burners are equipped with a stainless steel blast tube whose length is adjustable according to boiler requirements. Light oil version fits a nozzleholder designed to reduce the air resistance and the special diffuser can be easily moved along a graduated gauge on the nozzle-holder. As for gas burners, also the light oil range is designed to make servicing easier: universal pre-wired electrical plug connections avoid wiring mistakes; mechanical components are fitted onto a backing plate which can be moved and attached to special fixings within the burner; a special combustion air intake maximises the air pressure; the reduced thickness of the flange allows for exploitation of small spaces; the position of the combustion head is adjustable by means of a graduated screw.