after a short period to warm the pipe, i doubt if you'd see a difference a
thermometer could measure.


s


wrote in message
...
On Mon, 26 Nov 2007 11:23:56 -0600, "Steve Barker"
wrote:

the water leaves the heater at a certain temperature. It's not going to
get
hotter, i don't care if you wrap 12 inches of cellulose on it.



There is heat loss from the pipes between the heater and the tap.
That's why the pipe feels hot if you touch it. Insulated pipes may
result in the water being closer to the original temp when it reaches
the point of use. In other words, the water at the tap will be HOTTER
than if the pipes are not insulated.