On Dec 9, 6:00*pm, "Jim Sherman" wrote:
I'm a snowbird and worry about a furnace failure while I'm away. I've heard
that there is a temperature sensing switch that will turn on a lamp if the
house gets too cold. I'd like to set a lamp in the front window so my
neighbor can check the place as he drives by without coming inside. Does
such a switch exist? Who sells it? Thanks in advance.

Its called a Winter Watchman made by Honeywell, about 18.00
works great..

http://www.google.com/products?sourc...ed=0CB0QrQQwAA