-> The costs were approximate and vary considerably upon the quality of
-> the heat tape.  For an outdoor aviary I would consider only
-> commercial grade in conduit pipe sealed from moisture.  It would last
-> at least 20 years trouble free (according to the manufactuerer).  The
-> stuff I used is in use in sidewalks to melt ice and snow.
I've never heard of heated sidewalks- that's a great invention for those
awful icy spots.  ALMOST as great an invention as the heated perch will
be.  
-> I'm interested in Fran's experiences with the demo unit I've sent her
-> today ...
Me too.  I'll bet she gets the concrete part together pretty quickly
considering how cold the winter is down south this year.  Motivation is
good.
                                                           TTYL, Jan
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