i'm converting my property into two flats. i need to get the gas moved and have 2 connections. on the application you need to submit the hourly load for each property. i think i ve done this and the two flats are about 12000 btu's each. the form also asks the annual amount.just wondered how you do this. is it just times the 12000 by 24 then the answer by 365. any advice would be grateful. im hoping the figures dont need to be precise!!