One thing I have noticed under the Vanagon, and this will certainly affect the
heater performance, the water lines for the heater are totally exposed to the
elements, under the van/truck, that the cold air will cool the water inside
the hoses. I have thought of insulating the hoses on my Syncro, so less heat
will radiate off the hoses, and more will radiate off in the heater core.

PerL
87 Syncro 112i

David Marshall wrote:

> With the temps hanging around -25C my Double Cab never really warms up to
> where I would like to see it - warmish air only comes out of the vents.
> The coolant temp is right where it should be as well as the oil temp.  Is
> there a posibility that the outside air is just too cold for the heater
> core to warm up fast enough?  Should I put a piece of card board in front
> of the heater intake so there is more warmer air from the rad being sucked
> in?  Is there a piece of my heater "flap" system that isn't working right?
>
> --   David Marshall -                    - Quesnel, BC, Canada   --
> --    78 VW Rabbit, 80 VW Caddy, 84 VW Westie, 85 VW Cabriolet   --
> --       87 Audi 5000 Quattro, 88 2.0L VW Syncro Double Cab      --
> -- David's Volkswagen Home Page        http://www.volkswagen.org --
> -- Fast Forward Autobahn Sport Tuning  http://www.fastforward.ca --
> -- david@volkswagen.org (pmail) or vanagon@volkswagen.org (list) --