"Jim Wilkins" wrote in message ...

"RogerN" wrote in message
snip
RogerN

You could salvage the thermostat from a refrigerator and reverse its action
with a relay.

Or you could measure how cold the room gets with 100 or 200W of continuous
heat, such as a light bulb or
http://www.laskoproducts.com/myheat%...ter-model-106/
$12 in WalMart

I use mine to defrost my breakfast sandwich before microwaveing it.
jsw

I went to Wal-Mart last night, didn't see the personal heater but I bought
an $18 ceramic heater, low setting is 750 watts. With a lower power heater
it would be nice with the refrigerator thermostat because if it failed ON,
it would heat but not enough power to overheat the room.

I have an oil filled electric radiator with bad controls, I'm considering
using it with an electronic temperature control and using the alarm output
to turn on an indicator light if the temp is out of range, indicating a
heater failure or too cold even with the heat.

I have a "Kill-A-Watt" I can use to see how much power it takes to keep the
room above freezing.

RogerN