I am installing a 1951 factory original heater and have been unable to determine what the metal tube that protrudes from the top of the heater core enclosure is for, and how, or if it is connected. Thanks for any insight others might provide.
Thanks for your reply Sam. Actually I am asking about the much smaller tube which is about 3/4" and located on the top of the heater box and is just above the core inlet and outlet tubes which protrude from the back of the box. I can't seem to post a picture unfortunately. This feature is not on some of the earliershoebox heaters.
The heater is not an after market unit. There is an illustration in the 1949-50-51 Ford Book "A Restorer's Guide" it is on page 5-17 fig 5-11. I wish I had some idea of how to post a picture.I did miss-state the location of the tube in question. It is on the top of the case, but it is over the fan intake corner of the case.
William; Went out and looked at my heater box in my 1950 found the round tube your talking about the (automatic temp reg.) part # 18502 mounts over the top of that tube . It seams hot air must come out form that tube and flows over the valve. Hope this helps 50ford Southern Wisconsin