Yes. The good news is that well-designed radiator covers leave plenty of space for the warm air to travel through. A radiator cover could actually even improve your heat efficiency if the cover includes a reflective foil backing, which we mentioned earlier.

Do radiator covers affect efficiency?

Do radiator covers reduce the efficiency of radiators? No, radiator efficiency is measured in BTUs (British Thermal Units) and adding a radiator cover cannot change that. However, obstructing the radiator enough could stop warm air from being distributed evenly, which is why you need slots in them.

Do radiator covers waste energy?

All radiators, whether it's gas central heating or electric heating, require warm air to flow around the room to create convection. ... So while a radiator cover won't stop all of the heat from your radiator, they will reduce the effectiveness of how well it heats your home, leading to a waste of energy and money.