It's the one advantage of my tiny workshop (just enough room for my lathe, bandsaw, pro-edge and bench drill with a few shelves for bits and pieces) is that I can get it warm with a 1.5kW radiator. I have kept the radiator on all winter at a frost setting to stop liquids freezing and potentially spoiling. I knock the heater up a couple of notches about an hour before I want to start any work in the workshop and it is then quite warm, even if the heavy metal parts of the lathe, bandsaw, etc. are still very cold to the touch. Surely this cold north-easterly cannot last too many more days?