I don't know. I would search the threads to see if someone was able to figure out a way to control just the freezer portion of a refrigerator. I think that most household units use a single compressor, which would prohibit you from doing so, but I could be incorrect.
The goal is to be able to use a refrigerator or freezer to maintain a consistent temp for the fermentation temperature range of your yeast. For ales, you will usually be in the 60's. For lagers, lower. The most common option is a small chest freezer, but some people use refrigerators or other such options.
The goal is to be able to use a refrigerator or freezer to maintain a consistent temp for the fermentation temperature range of your yeast. For ales, you will usually be in the 60's. For lagers, lower. The most common option is a small chest freezer, but some people use refrigerators or other such options.