Question

Refrigerator have double walled body filled with foam or PUF.Why??

Answer 1

Foem and thermacol is bad conductor of heat that's why Refrigerator have double walled body filled with foem.

Answer 2

PUF (Polyurethane) rigid foam is the insulating material which is most widely used throughout the world for refrigerators and freezers. The insulation efficiency of polyurethane foams is a key property for the low temperature preservation of food during processing, storage and distribution to the consumer. Without polyurethane insulated refrigeration, approximately 50% percent of the world’s food would rot, heavily influencing our daily life and food related business.