1 imperial hp to btu per hour conversion result above is displayed in three different forms: as a decimal (which could be rounded), in scientific notation (scientific form, standard index form or standard form in the United Kingdom) and as a fraction (exact result). Every display form has its own advantages and in different situations particular form is more convenient than another. For example usage of scientific notation when working with big numbers is recommended due to easier reading and comprehension. Usage of fractions is recommended when more precision is needed.
If we want to calculate how many BTUs per Hour is 1 Mechanical Horsepower we have to multiply 1 by 671129884424043 and divide the product by 263764000000. So for 1 we have: (1 × 671129884424043) ÷ 263764000000 = 6.7112988442404E+14 ÷ 263764000000 = 2544.433222214 BTUs per Hour
So finally 1 imperial hp = 2544.433222214 btu per hour