I always recommend to keep the unit ON at all times. (this helps keep the keys current)
But I have never had a problem with heat...but if heat is an issue...a little fan will help.
You can find a cheap little fan made for PC's that runs on 115volts at ebay...do a search.
See ya this weekend babe, in the mature section. lol

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The New
CNX Dongle or IX-200 CNX Ihub Internet hub is now available for purchase as the
working Nagravision 3 IKS solution for Conaxsat (CNX) receivers. (Original IX-100 worked only for the CNX Nano). The new IX-200 is compatible with the Nano, Mini, Duo and Trio Conaxsat receivers (with power adapter). Also
NEW Nano2 with built in Dongle.
SatelliteJunkie
GET NEW KEYS HERE
SATELLITE CALCULATOR
DISH POINTING TOOL