Why don't you go wireless?


"Greg" wrote in message
...
Cat 5e is ok though walls. If you are going through the ceiling, around
any
heating ducting, etc. you should use Plemun (spelling ??) Cat-5e (in
fact,
I believe it is a code requirement in most areas). Plemun is fire
resistant, and is non toxic if it does catch fire.

That is if you are actually inside an air moving space, typically a raised
floor in a computer room or a suspended ceiling that is used for return
air.
That is not typical in a home.
"Near" a duct is not a problem.
You are right about the toxicity. Plenum rated cable will not produce
toxic
smoke. Riser rated cable will not spread flame. Plenum cable is riser
rated
too.
These show up on the cable jacket as "CL * P" or "CL * R"
* being the voltage rating "2" or "3"
CL2P is a 30v rated Plenum cable
Cat 5 will usually be type 2. "3" is for higher voltages.
You can substitute plenum cables for riser and class 3 for class 2 but not
the
other way around.