Posted by Mark [126.96.36.199] on Monday, January 06, 2020 at 14:32:06 :
In Reply to: Re: Hole in back of heater box, '71 Power Wagon posted by Paul (in NY) [188.8.131.52] on Monday, January 06, 2020 at 14:20:47 :
Hmmm, that would make sense except that I have no hole in my firewall that corresponds to the hole in the heater box.
Also, there is a fresh air damper that allows fresh air in through the top of the RHS of the box.
Thanks for the pic, it give me something to think about.
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