Why don't you need distributed HVAC? A gaming desktop can use a kilowatt of power, which is what a small space heater might put out. It often will make the room uncomfortably hot. (Anecdotally, this is part of why I switched to Geforce Now, myself. My apartment got incredibly uncomfortable from the heat. It's an older unit with no air conditioning.)
In data centers, sometimes (not always, and perhaps not often?) the heat can be more efficiently handled through central heat exchangers, more efficient commercial HVACs, etc.
