My workshop close from the water is not used for wood or epoxy work when the outside temp drops below 15 deg C. Just to heat when working is causing a lot of problems with humidity.
When working wood or epoxy you need a more or less constant temp and humidity to avoid problems. As you can see on my blog, I was working in the living room <img src="http://www.catsailor.com/forums/images/graemlins/crazy.gif" alt="" /> when doing the DS12.
I also have possibilities to use the workshop at my work.