Thank you all! This is good to know. Last winter, I did not use the tractor much but this winter I have. Unfortunately, it has been very cold and starting it has been tough. Then it dawned on me, I saw a three prong plug this past summer and remember tucking it out of the way. I will start using it before I use the tractor in the winter.
1. How long do you leave yours plugged in? It sounds like 30 minutes is the magic number.
2. By not using this plug yet, did I damage anything from the 3 or 4 very cold starts this month????
Thanks again to everyone for all your feedback!!!