The ImProv curved 540 × 450mm chrome radiator is a small, superior quality steel radiator with a simple, clean design. It has a heat output of 191 watts (652 BTUs). It's low height and width make it perfect to sit underneath a window, or in a small space in a smaller bathroom. It has been tested to EN442 at a temperature delta of 50 degrees. This type of radiator must be used on closed heating system which contain a rust inhibitor. Radiator valves should be purchased separately if required.