Does anybody recall the Icy Ball ammonia refrigerators? You cooled your
food using your kitchen stove. I have actually seen one! Google it. You had
a "dumbbell" contraption with a pipe and orifice connecting two spheres
with ammonia inside. You put one sphere into a pot of boiling water until
the ammonia boiled off. The you would open the lid of a specially designed
cabinet, with one sphere inside and the other sphere outside. The one that
got cold went inside. When the process had stopped, you repeated the
boil-off.

Just one simple step below a dometic.

Jim

On Tue, Aug 28, 2012 at 8:04 AM, george jannini <georgejoann@gmail.com>wrote:

>    Chilling foodstuffs using heated ammonia is magic, pure and simple, much
> like producing voices or music by manipulating 0s & 1s.  F.M., we old time
> tip & ringers used to call it it was and is the stuff of layoffs.
>
>   I kneel to the Dometic gods as I perform the lighting ritual whilst
> reciting the litany, or should I say, mutter dire imprecations and threats.
>
> Geo/atl
>