Do Smaller Radiators Use Less Energy?
This depends on the size of the room you are trying to heat. Smaller radiators have less surface area so they do give off less heat. But if you're only trying to heat a small area then a large radiator could end up being a waste of money. It's a balancing act, as if you get a radiator that is too small it won’t heat up your room effectively but if you get a radiator too big it can make your room too hot too quickly.