After a little searching through our Search the Site resource, I think this web page Jim Carter 1953-55.1 recirculating heater article has some pictures that may help answer your question. I found the link in this early thread on the topic.

You may need to grab the pic in a new window and zoom in to get a larger view as the pictures in Jim Carter's page aren't a separate linked page.

Hope this may help. wink

Last edited by Gdads51; 12/20/2023 3:47 PM.

~ Dan
1951 Chevy 3 window 3100
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