While some like to make a statement out of their radiators, others prefer them to adopt invisibility. If that sounds like you, you’ll love the look of Mill Heat’s sleek, wall-mounted, Wi-Fi-enabled heater. Built from steel and finished with curved edges to stop wayward cuffs and hems from catching on it, the horizontal design radiates a steady output of 2000W of heat, making it best for rooms that measure 80 square feet. It comes with a two-year guarantee and brackets and fixings to help you secure it to the wall.