I don't understand. Can you explain how this can be so? How does an
unvented catalytic heater (vented with windows open a crack) create more
water vapor in the van than a vented heater? They are both creating heat,
they both have air intake from outside and air exhaust to the outside? Have
you measured this?
Bill
90 Westy Syncro
Lake Tahoe

----------
> From: Steve <sxs@concentric.net>
> To: vanagon@VANAGON.COM
> Subject: Re: Catalytic Heaters.
> Date: Tuesday, November 03, 1998 3:27 PM
>
> Unvented catalytic heaters also dump copious amounts of
> water vapor
> into the van...enough to rust it out from the inside with
> regular use.
> Plat-Cat makes the best ventded heater for a vanagon...lots
> in the
> archive...including a plat-ca- vs. propex comparison.
> steve
>
> Malcolm Stebbins wrote:
>
> > Harald 90 westy said:
> >
> > > I found that a unvented catalytic heater can
> > > give me a terrible headache if it stays on all night, even with a
> > > window partly open.
> >
> > This may be so, but the heaters that I have used (81 gas & 85
> > diesel), I only used for a few minutes in the morning to take the
> > chill off while I/we dress.  A sleeping partner and a good sleeping
> > bag and a stocking cap are enough for the night.   So for my usage
> > pattern,  I think that for just a few minutes use (even 30), an
> > unvented heater would work just fine for me.
> >
> >  Malcolm S