I have had 4 plasma tv's in the last 6 years, and this year tried my first LCD the samsung es9000, every single one of the plasma's required me to close the heating vents in my tv room, as the tv would heat the room (12x18 ft) very comfortably when on. This is the first time in 6 years I found my tv room cold. While none of my plasma's were a Kuro, one Hitachi Director Series, two Panny's, a G10 and a GT50 and a Samsung 5 series, would indicate to me the heat that came from all 4 were a result of the plasma tech, and not related to any specific brand. While I might believe that the Kuro COULD run cooler than any of the 4 I have had, I would feel pretty confident that it would put off enough heat to warm a room watching a 2 hour movie, especially given that it consumes more electricity than any of the 4 plasma's I have had. While it may be more efficient at transforming that energy into light, it would seem likely that a by-product would be increased heat as well.