Christ. I've had the sky Q box propped up on lego bricks for years so it gets airflow all around. I realise this isn't to everyone's decor tastes but it's low down so you can't even see them
Having read the minuscule Sky booklet that was in the box, you’ve done the right thing.
Says in order to ensure a free flow of air around the box allow at least 10cm of space around exposed faces. Also an extensive list of advice.
Ensure airflow does not become impeded by newspapers or carpet or similar. Do not place close to sources of heat such as a heater or direct sunlight! The ambient temperature must not exceed 45C and do not place in an enclosed cabinet or above or below any other pieces of electronics such as a DVD player. Your set top box and remote control are are for use in moderate climates. Do not put anything on top of your box and avoid putting it on natural wood, antiques or any delicate surface which may easily damaged by heat.
Doubt it was envisaged that the U.K. would see temperatures approaching 40C as we saw in July. We were not in a moderate climate that week.
Sky engineer came yesterday and agreed to change the SkyQ box for a new one and send old one for examination.
Wouldn’t admit that glass was shattered due to heat from new box but when I asked what the design operating temperature was didn’t have an answer. The fact that they admit it’s got a cooling system in it says they know it runs hot and want to cool it.
I had a thermometer on the top of the box which rose way above the 30C max on its scale. Probably 40-50C my guess.
Engineer said they haven’t had anyone reporting a fire or glass breaking due to their SkyQ boxes to her knowledge.
Guess you need to watch where you position the box and I would say switch off from the mains supply if going on holiday in the summer. Catch-up means you don’t need to record.