how is it vented on the top? I was holding mine and I don't feel or see any vents on the tops, sides, or bottom even. It's a solid plastic hockey puck.
I noticed mine has a thick layer of felt like material on the bottom with no discernable vent
I have an LT unit that runs cool. I just purchased an HD unit because no LTs were available.
The HD was sitting powered but unused for a week on top of an unpowered television.
When I went to move it the unit was extremely hot to the touch. I would say "dangerously" so.
I immediately returned it to Amazon for an exchange, if the second unit runs that hot I will get a refund.
Heat is death to electronics an idle unit running this hot has a very short life span.
If the second one is the same I will report the product to the CPSC for further mfg contact.
This is a real problem. Just got mine two days ago. First day went ok, signal was good, streaming good (just one or two minor twitches). Second day: would disconnect very frequently. I noticed it was very hot underneath (some people here say any device is hot after a while. That is not true. A properly working device should not be extremely hot to the touch, especially not one that barely uses any power like this). The product maker even mentions that it uses less than a 'nightlight'. In my case, it must have been using an entire lamp's worth. I tried every single option mentioned on these forums (soft and hard reset, delinking/relinking, unplugging everything, etc.) but now the Roku HD is simply stuck on the 'Roku' page. I assume it is pretty much dead. Regardless, a good product would not be doing this. I think the LT is probably a better designed product, as I have read here and elsewhere that it does not run very hot (80 versus 120 F for the HD). This is a very REAL problem.
^ +1 It should not be that hot.
Edited to add:
Buy the way, you say it's hot on the bottom. What is the box sitting on?