Forum Discussion
doughere
Oct 10, 2015Explorer
Electric is 3412 BTU per KWH. Electric is essentially 100% efficient.
Propane is 91500 BTU per gallon. Propane is anywhere from 60% to 70% efficient.
For Electric: divide 341200 by cost per KWH (in cents) to arrive at BTU per dollar.
For Propane: divide 59475 (91500 BTU per gal. at 65% efficient) by cost per gallon (in dollars) to arrive at BTU per dollar.
Depending on where you are, they may be close or significantly different. Depending on the difference is one more convenient than another; you'd need to decide that.
Doug
Propane is 91500 BTU per gallon. Propane is anywhere from 60% to 70% efficient.
For Electric: divide 341200 by cost per KWH (in cents) to arrive at BTU per dollar.
For Propane: divide 59475 (91500 BTU per gal. at 65% efficient) by cost per gallon (in dollars) to arrive at BTU per dollar.
Depending on where you are, they may be close or significantly different. Depending on the difference is one more convenient than another; you'd need to decide that.
Doug
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