gunrunnerjohn posted:I've never gotten inside, but I've measured around 160F on the outside of an MTH smoke unit running full tilt. Obviously, one issue is if the fan ever stops blowing, it gets a whole lot hotter in a hurry, one of the arguments for the diecast fluid bowl.
That high temp plastic seems to work okay. My only complaint is the screws strip out of body then its basically ruined. Unless you re tap them with a new screw.
I guess since the newer Lionel smoke units have the thermistors and the voltage drops when the are at idle. It might not be such a issue of overheating. They in a way have became self manageable.
