In message ,
R.P.McMurphy writes
As it happens i have a stream flowing past my garden...is it
easier/better to use that as a heat source than burying pipes? I have
considered seeing if it'd be possible to have my own hydro electrical
generator running of it too..but am unsure where to start!

Is the stream fairly fast flowing and consistently full during the
months when heat is needed?

Is it prone to heavy flow with attendant rock movement? My dad has a
small river at the bottom of his garden and it can be very destructive
to anything that gets in it's path.

--
Clive Mitchell
http://www.bigclive.com