APPLIANCES IN BLENDER
This Bosch refrigerator is based on a .skp model by them available online, but after import to Blender I felt I had to make some minor changes, specifically I made each surface a single face (except for the freezer door which had to be 2 polygons on the front face, then I had to change the "Normal" geometry to "True Normal" and then changed the material to procedurally generated Anisotropic shader (which pushed it over the edge.)
You can also get free appliance models from some the manufacturer's in other formats and import them into Blender, saving many hours and they'll be proportionally correct.
FREE APPLIANCE MODEL SOURCES:
You can also find a limited number of appliances in SweetHome3D for free.