We havent lived in this house through such a long stretch of cold weather. The previous owner had issues with pipes bursting above the basement garage, he installed heat trace alogn the pipes, but said he never had to use it since upgrading the garage doors and adding insulation everywhere. With that said, the basement is curretly 39.9 degrees (in the garage) and another day where it wont get out of the teens and -10 forecasted for tonight. At what point should i start to worry, would it make sense just to plug the heat trace in for peace of mind. the previous owner never had a wood stove and always had the boiler running for heat so that helped to keep the basement warmer. How cold does your basement get?