DIYbanter - View Single Post

wrote:

snip

:-)

Now you might ask yourself what's really going on he

The humid weather is resulting in "sweaty" cold water pipes in our
basement...

...***I find that the condensation only occurs on the first few feet
of pipe in from the ground*** Is it possible that conduction causes the
water in the first few feet of pipe to stay cold all the time leading
to heavy condensation while beyond that the water for the most part
has warmed up...?

I think the OP is saying the incoming water is warming up to the dew point
of the basement air. If condensation never occurs beyond the first few feet
of pipe, even when water is flowing, the pipe is warming flowing water in
real time, which is a much more important saving than the warming of small
amounts of water between uses.

Nick

Do you -really- think that water coming in at 50 degrees (IINM that is
about normal underground temp) at high velocity, at least that of an
open fixture, is going to pick up much useable heat in 10 ft?

I suspect he is referring to non-flowing conditions. I kind of lost
track here. Does he say that it is in a basement? In my case it is
and the pipe is coated with condensate from the point it enters until
it disappears into the ceiling joists. Temp in my basement is around
65, too cool to sit down there in a t-shirt.

Harry K

Harry K