Except with Radiant heat, you're not just heating the air, you're heating
the surfaces of the van, which won't lose their heat when you open the door.

On 11/19/02 1:23 PM, "Stan Wilder" <wilden1@juno.com> wrote:

> 1) Thermal mass: Hydronic systems rely on a thermal mass which they heat
> up. Once the mass is warm it is easier to keep it warm. I think you would
> find it difficult to duplicate a thermal mass on the floor of you van.
> --------------------
> Why not just add a heater core from some vehicle?
> That way all you need is a fan blowing across it and some source that
> produces the BTU.
> All these sandwich floors are great if you've got an acre to work with
> but my Westy floor is about 4" x 4" and I don't want it elevated or
> plumbed.
> The real problem with heating the Westy is just like the Refrigerator,
> everytime you open the door the heat falls out, with the Refeigerator its
> the cold that fals out .................. recovery has to be fast and
> predictable.
>
> Stan Wilder
>
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