Btu
One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere.
One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere.
One BTU is defined as the energy needed to warm 1 avoirdupois pound of liquid water by 1 degree Fahrenheit at one atmosphere. One Btu (15.8°C, Canada) equates to 1054.615 J