If you really don't intend to use the engine heating option, you might consider
disconnecting (bypassing) it. There is a risk that an air bubble can reduce
water flow
and limit the cooling capacity of your engine. At the very least, if the
heater lines are
above the engine, make sure there's a way to vent the air and top off the
coolant.

Another excellent tip. Thanks. I'll check into this as I may just drop using
the heater.

RB