PURPOSE: To provide a refrigerator which can be operated efficiently by utilizing a low temperature waste heat.

CONSTITUTION: A refrigerator has a solution circulation path formed of at least absorbers 23 and 24, solution pumps 28 and 38 and a reproducer 6, a refrigerant gas circulation path formed of at least a condenser 12, an expanding device 45, and evaporators 46 and 57, a high pressure refrigerant gas passage 11 leading from the reproducer 6 to the condenser 12, and a low pressure refrigerant gas passage 37 leading from the evaporators 46 and 57 to the absorbers 23 and 24, and compressors 49 and 50 are provided in the low pressure refrigerant gas passage 37. The evaporator is formed of a low temperature evaporator 46 and a high temperature evaporator 57. These two evaporator 46 and 57 have means 52 and 53 respectively to switch the refrigerant circulation circuit and the low pressure refrigerant gas passage, and also a means to circulate refrigerant between the evaporators through the compressor 49. In addition, the abosorber has at least two or more abosorbers, one a high pressure side absorber 34 and the other a low pressure side absorber 23, and these two absorbers are connected to a compressing means of the compressors 49 and 50 correspondingly.