1 Dekatherm = 1,000,000 BTU's.
Oil contains heat output known as British Thermal Units (BTU's). Heavy oils such as Number 5 and 6 are what remains of the crude oil after gasoline and the distillate fuel oils are extracted through distillation. The conversions to the most popular heating oils are listed above.
To convert gallons of oil to dekatherms replace the BTU's / Gallon with the correct BTU's based on the type of oil consumed.
For example: #6 oil burns at a rate of 153200 BTU's per gallon.
If you multipy the number of gallons X 153200 = (total BTU's per month) divided by 1,000,000 = Dekatherms per month.
To convert your actual Monthly oil consumption to dekatherms open the excel spreadsheet: " Oil to gas conversion "
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