Hi,

We are going on a month's vacation and wanted to find out what is the
best way to ensure our water pipes don't freeze while we are gone.
I am thinking of 2 things:
Keep the heat on (forced natural gas furnace central heat) at 50 F
Shut-off water supply by shutting off the main water suply (this is
located in the basement). I already tested this and when I shut it off,
it shut off all faucets/taps in the house.
House is in the suburbs of Chicago.

Reason I want to turn off main water supply is to make absolutely sure
that the 50 F heat will be ok AND also if the furnace breaks down when
or in case of power outage,when we are gone, pipes will not freeze.

What do you guys think? Any other safegaurds I should take?

Thanks a bunch.