We want to instal a faucet outside the building to water the backyard
lawns. (At present we have to run the hose either from inside or around
the building from the front.)

The way the porches, decks, etc are, it would be convenient if teh
faucet was at the side of the wooden porch, about 10' out from the
brick wall.

However, a handyman tells us that in Chicago's climate we can't do this.
According to him, the pipe must remain inside the heated building and
the faucet should just come out of the wall.

Is he right, or with some precaution (like shutting off the water well
before winters) can we have a few feet of pipe outside?

Thanks for all advice.