I've got my English Barleywine in a bucket now, wrapped with a fermwrap, Johnson temp probe duct taped to the fermenter, insulated with a wash cloth. Then the whole bucket is wrapped in a couple bath towels to help me keep it at a steady 70 upstairs while the house thermo is set in the low 60s. The ferm wrap has also helped me to run 3724 at 90df in the basement last summer