Which is more expensive, a water-cooled radiator or an air-cooled radiator?

Water-cooled radiators are more expensive. Water-cooled radiators are more troublesome to install and the equipment is more sophisticated, so water-cooled radiators are more expensive. Water-cooled radiator refers to the use of liquid in the pump driven forced circulation to take away the heat of the radiator, compared with the air-cooled with quiet, stable cooling, small dependence on the environment and other advantages.