A scotch marine boiler has a furnace volume of 45.5 cu. ft. if 3825.2 cu. ft. of natural gas is burned per hour and each contains 1100 Btu, what is the rate of combustion?

RC = H / (Vf * t)
                        RC = H / (Vf * t)
                        RC = (3825.2 * 1100) / (45.5 * 1)
                        (cu. ft.) RC = 92477.36
Where,
                        RC rate of combustion (Btu/hr)
                        H       heat released (Btu)
                        Vf volume of furnace (cu. ft.) t
                                     time (hr)