Since others have asked the same question previously, I wrote down times and temps for both my frigerator and freezer from startup while camping a year or so ago. I did a forum search but did not run across the statistics. I did find another of my posts mentioning that on propane I waited for at least 5 hours before the refrigerator and freezer were cold. mkeith54 is correct in that there is no noise from the refrigerator unless someone has added an auxilliary fan in the outside compartment to keep the external coils cooler thus increasing your refrigerator's efficiency.
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system