hey, now this is just my opinion.
I have the fresh air heater, if I use it, in my 52panel. It uses all 'fresh air" where as the recirculating heater has a little vertical door that opens and supposedly pulls some of the inside air back in/through the heater "recirulating it and hopefully heating the inside of the cab better.

Now that I've given my opinion I remember there was a big thread about heaters not long ago. Do a search or go back a couple weeks or so and you'll find LOTS of pictures and reading!


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile