B.T.U., n.
a unit of energy equal to the work done by a power of 1000 watts operating for one hour
<noun.quantity>
B.T.U. Board of Trade unit kW-hr kilowatt hour
Word
a unit of energy equal to the work done by a power of 1000 watts operating for one hour
<noun.quantity>
B.T.U. Board of Trade unit kW-hr kilowatt hour