Excuse my ignorance in this post but I am researching into the feasability of utilizing microwave heating to replace a 5 million BTU per hour diesel fired heater used in the petroleum industry to heat crude oil and water. I  am having difficulty in finding simple heating conversion factors back and forth between english and metric.
 Through my initial searching I have come up with some numbers that suggest that 3400 BTU equals 1 watt so this gives me roughly a number that 5 mill BTU = 1500 kilowatts of electromagnetic heating.
 With 749 watts equalling one horse power, would this need a 2000 hp driver for the generator suppling the power source ? (1500/.749)
Any links to conversion tables or software downloads that would help in this would be greatly appreciated !