Investors who ploughed money into a "patented heat exchange", called the Ominhandler, had not been told that Burger King had had ripped it out of its outlets because they did not work. Burger King is believed to have paid £780m for the "green energy" devices which were supposed to save £150m by recycling "flame grill" heat. It installed three units supplied by Powercut at outlets in the North of England. The investors who went on to plough money into energy projects masterminded by the men behind Powercut, John Montgomery, 43, of Knaresborough and Stephen Morgan, 57, of Hemingbrough, near Selby, lost nearly £3m in what The Independent on Sunday called a "whoppa scam". The Independent on Sunday 08/02/04 page 17