Also acquired an Allstate and a Henry J heater so I could assemble it as an Allstate heater and install it. I learned something about these - the Henry J recirculating heater, 100302, is plumbed differently on the back than most of the Allstate heaters that resemble it (both are based on the Redhead model DL-51). The Allstate version I bought likely was not intended for use in the Allstate car itself. The pipes come off the back differently and unless you want to route the hoses through the outside fender well it will not simply install in an Allstate or Henry J! It doesn't appear that this configuration can easily be changed with a torch and some solder either! See attached - Allstate one is on the left, HJ on the right. So, what I had to do was take the Allstate face plate off and install it on the Henry J heater unit in order to install it in the car. Having no templates and no instructions didn't help the cause either. Anyway, it's installed and works and looks good.
