Hi all.

here's some pics of what i mean:

http://web.mac.com/tubaneil/iWeb/Site%205/Possible%20FrshAirHtrBoxMods.html

Hope this splains' the mod madness i am contemplating.

Neil.

On 3/22/07, Ryan Miller <rmiller@azteca.com> wrote:
> I had thought about fabricating a flap for the air intake as well. Then, by
> default I think the side hoses would be your source for the re-circulated
> air as well as some that would come from the rear cabin vents. But I decided
> that fabricating such a flap was beyond my ability and frankly time I could
> spend doing other things to the van. Like I said, the heat works pretty darn
> good the way it is. Only on REALLY cold mornings and high velocities does it
> take some time to warm things up.
>
> Ryan
>
> -----Original Message-----
> From: neil [mailto:musomuso@gmail.com]
> Sent: Thursday, March 22, 2007 12:08 PM
> To: Ryan Miller
> Cc: vanagon@gerry.vanagon.com
> Subject: Re: Mod. Fresh air box to recycle cabin air? (did some searching in
> arch.)
>
> Hi Ryan.
>
> Thanks for reply.
>
> > I would, however recommendyou block off the two hoses coming out the sides
> of the >heater box.
>
> Good idea. Much simpler than mine. If I could though, I would like to
> have 100% control of fresh air intake and recirculate cab air.
>
> This is what I would do:
>
> make flap to control fresh air intake at air intake behind front grill.
>
> remove plastic fresh air ram flaps in box, block opening below these
> so air drawn by fan is not drawn from area of heater core. With flap
> closed at air intake ram behind grill, fan would draw air from cab
> through the fresh air vents.
>
> Then I could control/mix fresh air intake with cab air. Not sure how
> restrictive the diamter of fresh air vents would be.
>
> I think it's possible to do.
>
> Hardest part?
>
> Fabbing flap (odd shape) for air intake ram behind grill.
>
> Or dealing with taking dash apart again cuz it didn't work......  ;^)
>
> Thoughts?
>
>
>
> On 3/22/07, Ryan Miller <rmiller@azteca.com> wrote:
> > Neil, I came up against the same problem you're having when I did my air
> to
> > water conversion. I couldn't find any practical way to recycle the air
> > unfortunately. If you do, pass the info along. I would, however recommend
> > you block off the two hoses coming out the sides of the heater box. These
> > are fresh air hoses that go to the far left and right dash vents and don't
> > heat when the heater is on. Maybe the vent flaps close off the air flow
> > enough though. With that done, I've found the heater works plenty well
> here
> > in Utah during the winter.
> >
> > Ryan
> > '82 Camper Van 'Beethoven'
> >
> >
> > Date:    Wed, 21 Mar 2007 13:37:26 -0800
> > From:    neil <musomuso@GMAIL.COM>
> > Subject: Mod. Fresh air box to recycle cabin air? (did some searching in
> > arch.)
> >
> > Hi all.
> >
> > Am rebuilding fresh air box and will install heater core as I will convert
> > to a water cooled engine.
> >
> > I understand how the box works but.....
> >
> > Assuming box rebuild and engine conversion done properly;
> >
> > will the heater properly heat cabin in really cold weather?
> >
> > (There isn't going to be a rear heater)
> >
> > If not, is there a way to mod box to recyle the cabin air?
> >
> > Obviously recycling air from cabin would at least make initial heating
> > process more efficient.
> >
> > One idea I had in that regard.
> >
> > Block off fresh air intake, (or make flap to control fresh air intake at
> ram
> > outside.Difficult I know....), remove fresh air ram flaps, make/install a
> > piece underneath area below flap(s) to block air from being "pulled" from
> > area of box pressurized by fan, so air from cabin could be drawn from side
> > fresh air vents.The drawback would be no more fresh air from fresh blown
> > from air vent at ends of dash.
> >
> > Has anyone done this? If I'm totally off base, please educate me!
> >
> > Any thoughts or success stories in this regard are welcome.
> >
> > And for you air cooled people considering upgrading to water cooled, I can
> > provide pics of box showing how/why heater core can be installed. Have not
> > installed heater core yet. (Am waiting for parts!) but can show where box
> is
> > cut for heater core nipples.
> >
> > --
> > Neil Nicholson. 1981 Air Cooled Westfalia.
> >
> > http://web.mac.com/tubaneil
> >
>
>
> --
> Neil Nicholson. 1981 Air Cooled Westfalia.
>
> http://web.mac.com/tubaneil
>

--
Neil Nicholson. 1981 Air Cooled Westfalia.

http://web.mac.com/tubaneil