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Old 01-23-2018, 08:49 PM   #4
glenn in camino
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Join Date: May 2010
Location: Camino, CA.
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Default Re: Heater to firewall

Quote:
Originally Posted by Dale G. View Post
Nothing. The space between the manifold cover and the inlet in the firewall is supposed to be there to allow fresh air to combine with the heated air.
Good answer, Dale. Any connection that's not steel would probably rattle or burn up, or let bad air into the heat.
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