The number of applications made to the Boiler Upgrade Scheme (BUS) has soared in the weeks after grants were increased to £7,500. An additional 1,150 new applications were received during the week commencing 23 October, three times as many as the weekly average received so far this year. Speaking to Utility Week, Heat Pump Federation director Bean Beanland said he expects the recent surge in demand to remain for the foreseeable.