Last night was fun. We winterized the workshop. 0 to 3 deg C last night, and this morning it was still 10degC in the workshop. That was pretty good concidering that we did not have a heatsource active in the garage. Looks like something out of NASA, dont it

In reality it is just some cardboard and aluminium foil, rubber gaskets on the port to the workshop etc. So far it seems to work well, and lighting was also improved. At least we think so. But what do a couple of tin-heads know