My receiver (222k) does not get hot except in the area of the MT2 when it is installed and in use for an extended period 5 to 6 hours on OTA channels, purchased the receiver brand new, June 2010, never ran hot until I installed the module, this is the 2nd module I have tried (dealer offers 1year replacement), same results, I have also installed my module in a relative's 222k and same results when module is present, if I pull the module out and run either 222k for a day no heat problems are currenty present, if I run the module without tuning to any OTA channels the heat is barely noticeable compared to when tuned to a OTA channel, problem is made worse when both TV1 & TV2 tuners are used for OTA so I know the problem is the design of the MT2 in a 222k, not the receiver. There should be a way added in the software (modulator setup screen) options 3,4, need an "off." The heat is centered around the ch3/4 output and when you place your finger against the jack you can tell, I do not use the ch 3/4 and I do not have a terminator/resistor connected which can sometimes cause heat buildup. So my conclusion, 222k with MT2 is a mini space heater. Time for some bench tests by dish.