Cubic feet de natural gas per second to BTU (IT) per hour converter on this page calculates how many BTU (IT) per hour are in 'X' cubic feet de natural gas per second (where 'X' is the number of cubic feet de natural gas per second to convert to BTU (IT) per hour). In order to convert a value from cubic feet de natural gas per second to BTU (IT) per hour type the number of cubic feet de natural gas per second to be converted to BTU/h and then click on the 'convert' button.