On Sat, 04 Jan 2014 22:37:04 -0600, Gordon Shumway
wrote:

On Sat, 04 Jan 2014 23:01:32 -0500, wrote:

On Sat, 04 Jan 2014 15:39:20 -0500, Ed Pawlowski wrote:

On 1/4/2014 9:12 AM, wrote:

That's like saying the pipes will freeze if they will freeze.
Sure, if you want to define ambient to be the temperature at the
pipes. But who measures that? The point is if one hears that
it's going to be 20F tonight, is there valid reason to be more
concerned about pipes in an outside wall, a drafty crawlspace,
etc freezing if the reported windchill is 0F versus 17F? The
answer to that is yes.

Let's change the parameters. Outside temperature is 35 degrees, but
because of the wind, the weatherman says the wind chill factor is 29
degrees. Will the pipe freeze? No.

No, but it will cool faster. Wind chill is still relevant to
inanimate objects, even above freezing.

You would have been 100% correct if you had left off the word "chill."

I don't know if you're just being pedantic, but you're wrong.