Just getting to be that time of year so I have only done it a couple times. I let it run about 5 minutes and it was throwing decent heat. I will get a remote start if not this year then next. After putting one in my last vehicle I got spoiled. It isn't so much not going out in the cold that I like but the time it saves in getting ready. I dont have to get dressed, go out, come back in, and finish getting ready. Also the wife will use it some this winter. Also with a baby now it will just make things easier.