Regardless of their material or production and totally irrespective of their designs, the vast majority of radiators will produce around 80% of their heat through the act of convection, leaving the remaining 20% to be emitted through radiation (not the bad kind, don't worry).
Are radiators bad for your health?
Can radiators impact respiratory health? Although radiators are effective at heating up a room, they can also impact your respiratory health. Radiators heat the air in a room and as the air warms up, it rises in a process known as convection. This causes the air to move, which can circulate dust around the room.
Is it bad to sit next to a radiator?
There's the potential for rolling over and burning yourself in the night on a hot rad. Alternatively, sleeping too close to a radiator could you give you insomnia or give you a headache from over heating.