Celsius heat units (IT) to horsepower-hour conversion calculator shown above calculates how many horsepower-hour are in 'X' Celsius heat units (IT) (where 'X' is the number of Celsius heat units (IT) to convert to horsepower-hour). In order to convert a value from Celsius heat units (IT) to horsepower-hour (from CHU to hph) simply type the number of CHU to be converted to hph and then click on the 'convert' button.