Actually for heat you need to let some outside air in. All the heated air
comes from outside. Usually the foam is replaced to stop of the whistling
noises when closing all the vents is attempted. If you think about things
you never really don't want to stop all outside air, even when using the AC.
You have to have some fresh air and O2 coming in.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Rocket J Squirrel
Sent: Monday, December 10, 2012 5:52 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Heater flap foam replacement detail

I was going to replace the crumbled foam flaps in my heater box when I had
it out earlier this year. Got all the parts on hand, but when I looked at
the setup, it seemed to me that the ducts close pretty much well enough
without new, or any, foam, so I skipped that step. It's winter now and there
isn't significant enough leakage to matter. I don't think I made a mistake.

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.

On 12/10/2012 02:29 PM, Bill M wrote:
> Yes David the plastic pieces do have barbs. I used EPMD foam from NAPA and
from autozone. The stuff used between bed caps on pick up trucks and the
body.
> It stuck into the metal parts and then I put the plastic bits back on.
> I don't know if I would use the craft store foam as it doesn't hold up
> to the elements very well.
>
> Bill M
> Mystic,CT
>
> On Dec 10, 2012, at 4:41 PM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:
>
>> At 01:21 PM 12/10/2012, Mike South wrote:
>>> (c) remove the plastic, put my foam in, stick the plastic back on?
>>
>> Yes.  Unless I misremember the plastic is held on by little barbs.
>>
>> Yrs,
>> d