On Wed, 28 Jan 2004 16:55:10 GMT, Michelle P
wrote:

Paul,
if you handy with electricity go to your local Electrical or heating and
AC supply house. Buy a temperature controlled switch/contactor. They can
go from $30-100 dollars.
I bought one that is double throw and can turn on when the temp falls or
rises. It is used in the heating/AC industry to switch between Heat and AC.
Michelle

Michelle;

I respectfully suggest you contact Peter Tanis

http://www.tanair.com/contactus.html

and ask him what he thinks about using a thermostat to cycle an engine
heater on and off with changes in OAT.

TC