It's getting to that time of year when the leaves are changing and the nights in Chicago are becoming longer than the days. That brings with the inevitable coolness of the season. Now people are starting to get interested in how we're doing with the weather. It hasn't been cold yet, in fact we haven't seen the mercury dip below the magic 32 mark yet, but we've been close. Cygnet isn't insulated. There is plenty of fiberglass, but it is all hard, not the fluffy kind in the walls of your home that keep you cozy on a December evening. This kind actually transfers the temperature well, and can mean a night without a heater on can leave us cold. We've been experimenting with different systems and so far have found a pretty good way to keep things comfy in the fall. Hot and Silent The space heater. We have a big radiator style space heater that sits near the middle of the boat that keeps it pretty comfy when the temperature outside is above 55.