aspasia wrote:
On 18 Oct 2006 19:53:23 -0700, "BobK207" wrote:

[...]

If you have a gas pilot light system the pilot light is probably enough
to keep the water hot.

[...]

Are you in a windy area? Any chance that a blast of air under garage
door or when suddenly opening it might blow out pilot and you wouldn't
be aware until...

Less chance of this happening indoors. Is your gas heater "sheltered"
from drafts?

Aspasia

Are you in a windy area? Any chance that a blast of air under garage
door or when suddenly opening it might blow out pilot and you wouldn't
be aware until...

Less chance of this happening indoors. Is your gas heater "sheltered"
from drafts?

And this addresses the OP's question, how?

when the pilot goes out, the gas goes off & the water gets cold

Did you have a point to your post?

cheers
Bob