I am happy to say (now that winter is over here) that my heater is working great! I changed the leads like you suggested and that was it. We hooked it up in reverse. It still does not really have a big area or opening where it can pull air through, but there is a small one and that apparently is plenty. I could see where this heater would work well enough even up north. I am very happy about it as it gets drafty in the truck during the winter and there are some cold days here and I love to have the windows open and the heat on. Thanks a lot for your interest and all the stovebolt people were great with their advice. I hope it is cold on St Patty's Day as I am in a parade here in Ft. Lauderdale
Bob K