The OC-4 seems to be a handy little item to have around this winter! had it sitting outside in this last rain before it froze up again. Needed the shop space for truck repairs. Got water in the switch. Gotta heat the switch to thaw it out to start it and heat the swtich to shut it off. oh well. it needs a new switch anyway. Supposed to warm up this weekend. Guess I'll be replacing that.