A method and a
system for refilling a
gas cylinder (10) arranged in a user area (2) of a building (1) and connected to at least a gas burning apparatus (3). The method comprises a step of arranging a refilling
station (20) in an external area (4) outside of said building (1), said refilling
station (20) providing a refilling socket (21) associated to the user area by a
user code (36). A refilling circuit(25) is arranged to hydraulically connect the
gas cylinder (10) to a refilling socket (21) of the refilling
station (20). A sensor (30) is also provided configured to detect the quantity of gas present in the
gas cylinder (10) and to generate a corresponding quantity
signal (31). A process unit (32) compares the quantity
signal (31) with a refilling threshold value, generates a refilling
signal (34) in case the quantity signal (31) is less than the refilling threshold value. The refilling signal (34) is transmitted by a transmission module (35) to a remote station (40), which is configured to receive the refilling signal (34) and to provide a refilling command (41) containing the
user code to a refilling vehicle (50). Then, a refilling step is provided for refilling gas into the gas cylinder (10) by hydraulically connecting the refilling vehicle (50) to the refilling station (20) by the refilling socket (21), which is hydraulically connected to the gas cylinder (10) through the refilling circuit (25).