A refrigerating apparatus includes an insulation housing including an inner box. The inner box has side plates and first and second refrigerating circuits including a first evaporation pipe and a second evaporation pipe, respectively. The first and second evaporation pipes are disposed on the side plates. The first and second evaporation pipes are bent so as to form a first comb shape and a second comb shape, respectively. The first and the second comb shapes form a nested structure. The first and second evaporation pipes include a first straight portion and a second straight portion extending the horizontal direction, respectively. A first distance between the first straight portion of the first evaporation pipe and the first straight portion of the second evaporation pipe and a second distance between the first straight portion of the second evaporation pipe and the second straight portion of the second evaporation pipe are substantially equal.